Appendix A Fire Pumper 9 Specs Final MK 12-20-22.pdf

Appendix A

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SPECIFICATIONS FOR A TRIPLE COMBINATION PUMPER

INTENT OF SPECIFICATIONS

It shall be the intent of these specifications to cover the furnishing and delivery of a complete fire apparatus. These detailed specifications cover the requirements as to the type of construction, finish, equipment, and tests to which the fire apparatus should conform. Minor details of construction and materials, which are not otherwise specified, are left to the discretion of the contractor.

EXCEPTIONS

These specifications reflect the type of fire apparatus that is desired at this time.

Proposers shall indicate in the "yes/no" column if their proposal meets request on each item. If “no” is indicated, additional comments and justification with potential mitigating alternative solutions should be provided.

If a product brand name is specified and is commercially available to all proposers, an exception to such items is not desirable.

MAXIMUM OVERALL HEIGHT

The maximum overall height of the apparatus shall be 113".

WHEELBASE

The wheelbase of the vehicle shall be no greater than 172.50.

GVW RATING

The gross vehicle weight rating shall be a minimum of 44,000.

FRAME

The chassis frame shall be built with 2 steel channels bolted to 5 cross members or more. The side rails shall be heat-treated steel measuring 10.25" x 3.50" x 0.375".

Each rail shall have a section modulus of 16.00 cubic inches, yield strength of 120,000 psi, and a resisting bending moment (rbm) of 1,921,069 inch-pounds.

FRAME REINFORCEMENT

A full-length mainframe "C" liner shall be provided.

The liner shall be an internal "C" design, heat-treated steel measuring 9.38" x 3.13" x

.25". Each reinforcement member shall have a section modulus of 3.90 cubic inches, yield strength of 120,000 psi and resisting bending moment (rbm) of 938,762 in-lb.

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In addition, a L-shaped steel channel reinforcement shall be located under each mainframe rail.

FRONT NON-DRIVE AXLE

The front axle shall be of the independent suspension design with a ground rating of

19,500 lb.

Upper and lower control arms shall be used on each side of the axle. Upper control arm castings shall be made of 100,000-psi yield strength 8630 steel and the lower control arm casting shall be made of 55,000-psi yield ductile iron.

The center cross members and side plates shall be constructed out of 80,000-psi yield strength steel.

Each control arm shall be mounted to the center section using elastomer bushings.

These rubber bushings shall rotate on low friction plain bearings and be lubricated for life. Each bushing shall also have a flange end to absorb longitudinal impact loads, reducing noise and vibrations.

There shall be 9 grease fittings supplied, 1 on each control arm pivot and 11 on the steering gear extension.

The upper control arm shall be shorter than the lower arm so that wheel end geometry provides positive camber when deflected below rated load and negative camber above rated load.

Camber at load shall be zero degrees for optimum tire life.

The ball joint bearing shall be of low friction design and be maintenance free.

Toe links that are adjustable for alignment of the wheel to the center of the chassis shall be provided.

The wheel ends must have little to no bump steer when the chassis encounters a hole or obstacle.

The steering linkage shall provide proper steering angles for the inside and outside wheel, based on the vehicle wheelbase.

The axle shall have a turning angle of up to 45 degrees.

FRONT SUSPENSION

An independent front suspension shall be provided with a minimum ground rating of

19,500 lb.

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The independent suspension system shall be designed to provide maximum ride comfort. The design shall allow the vehicle to travel at highway speeds over improved road surfaces and at moderate speeds over rough terrain with minimal transfer of road shock and vibration to the vehicle's crew compartment.

Each wheel shall have a torsion bar type spring. In addition, each front wheel end shall also have energy absorbing jounce bumpers to prevent bottoming of the suspension.

The suspension design shall be such that there is at least 10.00" of total wheel travel and a minimum of 3.75" before suspension bottoms.

The torsion bar anchor lock system allows for simple lean adjustments, without the use of shims. One can adjust for a lean within 15 minutes per side. Anchor adjustment design is such that it allows for ride height adjustment on each side.

The independent suspension shall have been put through a durability test that simulated a minimum of 140,000 miles of inner city driving.

FRONT SHOCK ABSORBERS

Heavy-duty telescoping shock absorbers shall be provided on the front suspension.

FRONT OIL SEALS

Oil seals with viewing window shall be provided on the front axle.

FRONT TIRES

The front tires shall be Michelin 385/65R22.50, X Multi HL Z tread, rated for 22,000 lb.

maximum axle load and 75 mph maximum speed.

The tires shall be mounted on Alcoa 22.50" x 12.25" polished aluminum disc type wheels with a 10 stud, 11.25" bolt circle.

REAR AXLE

The rear axle shall be a Meritor™, Model RS-23-186, with a capacity of 24,000 lb.

TOP SPEED OF VEHICLE

NFPA 1901, 2016 edition requires limits on the top speed of vehicles. NFPA 4.15.2 requires that the maximum top speed of fire apparatus with a GVWR over 26,000 lb.

shall not exceed either 68 mph or the manufacturer's maximum fire service speed rating for the tires installed on the apparatus, whichever is lower. NFPA 4.15.3 requires that if the combined water tank and foam agent tank on the fire apparatus exceed 1250 gallons or the GVWR of the vehicle is over 50,000 lb., the maximum top speed of the apparatus shall not exceed either 60 mph or the manufacturer's maximum fire service

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Require speed rating for the tires installed on the apparatus, whichever is lower. It is the intention of the standard to improve safety by limiting the speed of all apparatus to 68 mph.

A rear axle ratio shall be furnished to allow the vehicle to reach an approximate top speed of 68 MPH.

REAR SUSPENSION

The rear suspension shall be a Reyco model 79KB with a ground rating of 24,000 lb.

Spring hangers and mounting components shall be cast. The suspension utilizes 2 attaching points with variable rate spring cams and rubber bushed adjustable torque arms.

REAR OIL SEALS

Oil seals shall be provided on the rear axle(s).

REMOTE GREASE FITTING

There shall be a remote grease fitting plumbed to an area accessible for maintenance for the rear suspension. It shall be located below the body rear of the drive axle

REAR TIRES

Rear tires shall be four (4) Michelin 12R22.50 radials, 16 ply all season XDN2 tread, rated for 27,120 lb. maximum axle load and 75 mph maximum speed.

The tires shall be mounted on Alcoa 22.50" x 8.25" polished aluminum disc wheels with a 10 stud 11.25" bolt circle.

TIRE PRESSURE MANAGEMENT

There shall be a RealWheels LED AirSecure™ tire alert pressure management system provided, that shall monitor each tire's pressure. A sensor shall be provided on the valve stem of each tire for a total of 6 tires.

The sensor shall calibrate to the tire pressure when installed on the valve stem for pressures between 10 and 200 psi. The sensor shall activate an integral battery-operated LED when the pressure of that tire drops 5 to 8 psi.

Removing the cap from the sensor shall indicate the functionality of the sensor and battery. If the sensor and battery are in working condition, the LED shall immediately start to flash.

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FRONT HUB COVERS

Stainless steel hub covers shall be provided on the front axle. An oil level viewing window shall be provided.

HUB COVERS (REAR)

A pair of stainless-steel high-hat hub covers shall be provided on rear axle hubs. The covers shall be manufactured by Real Wheels, Inc, and shall come with the standard warranty.

CHROME LUG NUT COVERS

Chrome lug nut covers shall be supplied on front and rear wheels.

FRONT AND REAR MUD FLAPS

Mud flaps with a custom logo shall be installed behind the front and rear wheels of the apparatus.

WHEEL CHOCKS

There shall be 1 pair of Worden Safety Products, Model HWG-SB, wheel chocks provided.

Heavy Duty, large, molded aluminum wheel chock with solid bottom, natural cast aluminum finish.

WHEEL CHOCK BRACKETS

There shall be 1 pair of Worden Safety model U815T mounting wheel chock brackets provided. The brackets shall be mounted one each side, behind the rear axle.

ANTI-LOCK BRAKE SYSTEM

The vehicle shall be equipped with a Wabco 4S4M, anti-lock braking system. The ABS shall provide a four (4) channel anti-lock braking control on both the front and rear wheels. A digitally controlled system that utilizes microprocessor technology shall control the anti-lock braking system. Each wheel shall be monitored by the system.

When any wheel begins to lockup, a signal is shall be sent to the control unit. This control unit then shall reduce the braking of that wheel for a fraction of a second and then reapply the brake. This anti-lock brake system shall eliminate the lockup of any wheel thus helping to prevent the apparatus from skidding out of control.

AUTOMATIC TRACTION CONTROL

An anti-slip feature shall be included with the ABS. The Automatic Traction Control shall be used for traction in poor road and weather conditions. The Automatic Traction

Control shall act as an electronic differential lock that shall not allow a driving wheel to spin, thereby supplying traction at all times. The ABS electronic control unit (ECU) shall

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Require work with the engine ECU, sharing information concerning wheel slip. Engine ECU shall use information to control engine speed, allowing only as much throttle application as required for the available traction, regardless of how much the driver is asking for.

An "off road traction" switch shall be provided on the instrument panel. Activation of the switch shall allow additional tire slip to let the truck climb out and get on top of deep snow or mud.

BRAKES

The service brake system shall be full air type.

The front brakes shall be Knorr/Bendix disc type with a 17.00" ventilated rotor for improved stopping distance.

The brake system shall be certified, third party inspected, for improved stopping distance.

The rear brakes shall be Meritor™, Disc Plus, Model EX225, disc operated with automatic slack adjusters and a 17.00" ventilated rotor for improved stopping distance.

BRAKE SYSTEM AIR COMPRESSOR

The air compressor shall be a Cummins/WABCO with 25.9 cubic feet per minute output.

BRAKE SYSTEM

The brake system shall include:

• Brake treadle valve

• Heated automatic moisture ejector on air dryer

• Total air system minimum capacity of 4,272 cubic inches

• 2 air pressure gauges with a red warning light and an audible alarm, that activates when air pressure falls below 60 psi

• Spring set parking brake system

• Parking brake operated by a push-pull style control valve

• A parking "brake on" indicator light on instrument panel

• Park brake relay/inversion and anti-compounding valve, in conjunction with a double check valve system, with an automatic spring brake application at 40 psi

• A pressure protection valve to prevent all air operated accessories from drawing air from the air system when the system pressure drops below 80 psi (550 kPa)

• 1/4 turn drain valves on each air tank

The air tank shall be primed and painted to meet a minimum 750-hour salt spray test.

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To reduce the effects of corrosion, the air tank shall be mounted with stainless steel brackets (no exception).

BRAKE SYSTEM AIR DRYER

The air dryer shall be WABCO System Saver 1200 with spin-on coalescing filter cartridge and 100-watt heater.

BRAKE LINES

Color-coded nylon brake lines shall be provided. The lines shall be wrapped in a heat protective loom where necessary in the chassis.

AIR INLET

1 air inlet with male coupling shall be provided. It shall allow air to be supplied to the apparatus brake system through a shoreline hose. The air inlet shall be recessed into the driver’s side cab step riser. A check valve shall be provided to prevent reverse air flow. The inlet shall discharge into the “wet” tank of the brake system. A mating female coupling shall also be provided with the loose equipment.

AIR OUTLET

1 air outlet shall be installed with a female coupling located on the driver side pump panel. This system shall tie into the "wet" tank of the brake system, include an 85-psi pressure protection valve in the outlet line to prevent the brake system from losing all air, and include a quarter turn shut off valve mounted at the tank. The valve and all hoses shall be mounted to the tank as high as possible to ensure maximum clearance and protect the lines from being damaged by brush and rocks during odd-road operations.

RECESSED BOX FOR AIR FITTING

1 air inlet shall have an aluminum treadplate recessed box provided. The box(es) shall allow the air fitting to be recessed inside the stepwell to prevent damage in the forward driver side stepwell.

REMOTE AIR TANK DRAIN

There shall be a single remote drain valve provided to drain all air supply reservoirs at the same time. The drain valve shall be actuated from the side of the apparatus. The drain valve shall be located Forward of the driver side axle. Automatic valves shall be provided to isolate the reservoirs from one another when the drain is closed.

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COMPRESSION FITTINGS ONLY

Any nylon tube on the apparatus that is pneumatic shall be plumbed with compression type fittings where applicable. Push lock fittings shall not be acceptable for any pneumatic nylon tube plumbing.

ENGINE

The chassis shall be powered by an electronically controlled engine as described below:

Make: Cummins

Model: X12

Power: 500 hp at 1900 rpm

Torque: 1700 lb.-ft at 1000 rpm

Governed

Speed:

2000 rpm

Emissions

Level:

EPA 2021

Fuel: Diesel

Cylinders: 6

Displacement: 729 cubic inches (11.9L)

Starter: Delco 39MT™

Fuel Filters: Spin-on style primary filter with water separator and water-in-fuel sensor. Secondary spin-on style filter.

The engine shall include On-board diagnostics (OBD), which provides self-diagnostic and reporting. The system shall give the owner or repair technician access to state of health information for various vehicle sub systems. The system shall monitor vehicle systems, engine and after treatment. The system shall illuminate a malfunction indicator light on the dash console if a problem is detected.

REMOTE MOUNTED ENGINE FILTERS

The engine fuel and oil filters shall be remote mounted for ease of maintenance.

HIGH IDLE

A high idle switch shall be provided, inside the cab, on the instrument panel, that shall automatically maintain a preset 1000 engine rpm. A switch shall be installed, at the cab instrument panel, for activation/deactivation.

The high idle shall be operational only when the parking brake is on, and the truck transmission is in neutral. A green indicator light shall be provided, adjacent to the

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ENGINE BRAKE

A Jacobs® engine brake is to be installed with the controls located on the instrument panel within easy reach of the driver.

The driver shall be able to turn the engine brake system on/off and have a high, medium, and low setting.

The engine brake shall activate when the system is on and the throttle is released.

The high setting of the brake application shall activate and work simultaneously with the variable geometry turbo (VGT) provided on the engine.

The engine brake shall be installed in such a manner that when the engine brake is slowing the vehicle the brake lights are activated.

The ABS system shall automatically disengage the auxiliary braking device, when required.

CLUTCH FAN

A fan clutch shall be provided. The fan clutch shall be automatic when the pump transmission is in "Road" position, and constantly engaged when in "Pump" position.

ENGINE AIR INTAKE

The engine air intake shall be located above the engine cooling package. It shall draw fresh air from the front of the apparatus through the radiator grille.

The ember separator is designed to prevent road dirt and recirculating hot air from entering the engine.

The ember separator shall be easily accessible by tilting the cab.

EXHAUST SYSTEM

The exhaust system shall include a Single Module™ aftertreatment device to meet current EPA standards. The exhaust system shall be stainless steel from the turbo to the inlet of the aftertreatment device and shall be 5.00" in diameter. An insulation wrap shall be provided on all exhaust pipes between the turbo and aftertreatment device to minimize the heat loss to the aftertreatment device. The exhaust shall terminate horizontally ahead of the right-side rear wheels. A tailpipe diffuser shall be provided to reduce the temperature of the exhaust as it exits. Heat deflector shields shall be provided to isolate chassis and body components from the heat of the tailpipe diffuser.

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EXHAUST MODIFICATION

The exhaust pipe shall be brought out from under the body at a 90-degree angle from the truck. The tail pipe shall extend a minimum of 2.00" past the body, adaptable for the

Plymovent system. The diameter of the diffuser shall be 7.00". There shall be a clearance of 4.00" completely around the pipe once past the side of the body. A stop shall be provided on the tail pipe that shall prevent the nozzle from sliding too far on.

RADIATOR

The radiator and the complete cooling system shall meet or exceed NFPA and engine manufacturer cooling system standards.

For maximum corrosion resistance and cooling performance, the entire radiator core shall be constructed using long life aluminum alloy. The radiator core shall consist of aluminum fins, having a serpentine design, brazed to aluminum tubes. No solder joints or leaded material of any kind shall be acceptable in the core assembly.

The radiator core shall have a minimum front area of 1060 square inches.

Supply tank shall be made of heavy-duty glass-reinforced nylon and the return tank shall be mode of aluminum. Both tanks shall be crimped onto the core assembly using header tabs and a compression gasket to complete the radiator core assembly. There shall be a full steel frame around the inserts to enhance cooling system durability and reliability.

The radiator shall be compatible with commercial antifreeze solutions.

The radiator assembly shall be isolated from the chassis frame rails with rubber isolators to prevent the development of leaks caused by twisting or straining when the apparatus operates over uneven terrain.

The radiator shall include a de-aeration/expansion tank. For visual coolant level inspection, the radiator shall have a built-in sight glass. The radiator shall be equipped with a 15-psi pressure relief cap.

A drain port shall be located at the lowest point of the cooling system and/or the bottom of the radiator to permit complete flushing of the coolant from the system.

Shields or baffles shall be provided to prevent recirculation of hot air to the inlet side of the radiator.

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COOLANT LINES

Gates, or Goodyear, rubber hose shall be used for all engine coolant lines installed by the chassis manufacturer.

Hose clamps shall be stainless steel constant torque type to prevent coolant leakage.

They shall react to temperature changes in the cooling system and expand or contract accordingly while maintaining a constant clamping pressure on the hose.

RADIATOR SKID PLATE

A lower radiator skid plate shall be supplied for protection. The skid plate shall be constructed of 0.25" steel plate.

FUEL TANK

A 65-gallon fuel tank shall be provided and mounted at rear of chassis. The tank shall be constructed of 12-gauge, hot rolled steel. It shall be equipped with swash partitions and a vent. To eliminate the effects of corrosion, the fuel tank shall be mounted with stainless steel straps. (No exception).

A .75" drain plug shall be provided in a low point of the tank for drainage.

A fill inlet shall be located on the left hand and right-hand sides of the body and be covered with a hinged, spring-loaded, stainless-steel door that is marked "Ultra Low

Sulfur - Diesel Fuel Only."

A .50" diameter vent shall be provided running from top of tank to just below fuel fill inlets.

The tank shall meet all FHWA 393.67 requirements including a fill capacity of 95 percent of tank volume.

Servicing the fuel tank pick-up tubes and fuel gauge sending unit shall be capable of being accomplished by draining fuel and dropping tank.

All fuel lines shall be provided as recommended by the engine manufacturer.

DIESEL EXHAUST FLUID TANK

A 4.5-gallon diesel exhaust fluid (DEF) tank shall be provided and mounted in the driver's side body forward of the rear axle.

A 0.50" drain plug shall be provided in a low point of the tank for drainage.

A fill inlet shall be located on the driver's side of the body and be covered with a hinged, spring loaded, brushed stainless steel door that is marked "Diesel Exhaust Fluid Only".

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The tank shall meet the engine manufacturers requirement for 10 percent expansion space in the event of tank freezing.

The tank shall include an integrated heater unit that utilizes engine coolant to thaw the

DEF in the event of freezing.

FUEL PRIMING PUMP

A Cummins automatic electronic fuel priming pump shall be integrated as part of the engine.

FUEL COOLER

An air to fuel cooler shall be installed in the engine fuel return line.

FUEL FILL DOOR

A brushed stainless steel fuel fill door shall be installed.

FUEL CAP

A Velvac® brass fuel cap shall be provided.

FUEL SEPARATOR

The engine shall be equipped with a Racor in-line spin-on fuel and water separator in addition to the engine fuel filters.

TRANSMISSION

An Allison 6th generation, Model EVS 4000P, electronic, torque converting, automatic transmission shall be provided.

The transmission shall be equipped with prognostics to monitor oil life, filter life, and transmission health. A wrench icon on the shift selector's digital display shall indicate when service is due.

2 PTO openings shall be located on left side and top of converter housing (positions 8 o'clock and 1 o'clock).

A transmission temperature gauge with an amber light and buzzer shall be installed on the cab instrument panel.

TRANSMISSION SHIFTER

A 6-speed push button shift module shall be mounted to right of driver on console. Shift position indicator shall be indirectly lit for after dark operation.

The transmission ratio shall be 1st - 3.51 to 1.00, 2nd - 1.91 to 1.00, 3rd - 1.43 to 1.00, 4th - 1.00 to 1.00, 5th - 0.75 to 1.00, 6th - 0.64 to 1.00, R- 4.80 to 1.00.

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TRANSMISSION COOLER

A Modine plate and fin transmission oil cooler shall be provided using engine coolant to control the transmission oil temperature.

DOWNSHIFT MODE (W/ENGINE BRAKE)

The transmission shall be provided with an aggressive downshift mode.

This shall provide earlier transmission downshifts to 3rd gear from 6th gear, resulting in improved engine braking performance.

DRIVELINE

Drivelines shall be a heavy-duty metal tube and be equipped with Spicer® 1810 universal joints.

The shafts shall be dynamically balanced before installation.

A splined slip joint shall be provided in each driveshaft where the driveline design requires it. The slip joint shall be coated with Glidecoat® or equivalent.

STEERING

Dual Sheppard, Model M110, steering gears, with integral heavy-duty power steering, shall be provided. For reduced system temperatures, the power steering shall incorporate an air to oil cooler and an Eaton, Model VN20, hydraulic pump with integral pressure and flow control. All power steering lines shall have wire braded lines with crimped fittings.

A tilt and telescopic steering column shall be provided to improve fit for a broader range of driver configurations.

STEERING WHEEL

The steering wheel shall be 18.00" in diameter, have tilting and telescoping capabilities, and a 2-spoke design.

LOGO AND CUSTOMER DESIGNATION ON HORN BUTTON

The steering wheel shall have an emblem containing the fire apparatus manufacturer's logo and customer name. The emblem shall have 3 rows of text for the customer's department name. There shall be a maximum of 8 characters in the first row, 11 characters in the second row and 11 characters in the third row.

The first row of text shall be: Long

The second row of text shall be: Beach

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The third row of text shall be: Fire Dept.

AUTOMATIC CHASSIS LUBRICATION

A Vogel Automatic Lubrication System shall be provided. The lubrication shall be supplied while the vehicle ignition switch is active to allow a uniform application of grease to the locations listed. The electronic control unit that forms part of the system shall activate the pump after an adjustable interval time. The unit shall control and monitor pump operation and report any faults via an indicator light on the driver's dashboard of the cab.

The lubrication system reservoir, which requires a 15.00" wide x 14.50" high x 6.25" deep mounting area, shall be located to be determined at preconstruction on the apparatus.

- Independent Suspension Control Arm Pivot Points

- Rear Axle Slack Adjusters

- Rear Axle Brake Cam Screws

- Rear Suspension Spring Pins

- Rear Suspension Shackle Pins

- Walking Beam Pins Tandem axle, if applicable

BUMPER

A 1-piece, stainless steel bumper, minimum of 10.00" high, shall be attached to the front of the frame.

A 9.00" channel shall be mounted directly behind the bumper for additional strength.

The bumper shall be extended 10.00" from front face of cab.

Gravel Pan

A gravel pan, constructed of bright aluminum treadplate, shall be furnished between the bumper and cab face. The gravel pan shall be properly supported from the underside to prevent flexing and vibration of the aluminum treadplate.

LIFT AND TOW MOUNTS

Mounted to the frame extension shall be lift and tow mounts. The lift and tow mounts shall be designed and positioned to adapt to certain tow truck lift systems.

The lift and tow mounts with eyes shall be painted the same color as the frame.

TOW EYES

2 chrome tow eyes shall be mounted through the front face of the bumper.

The inner and outer edges of the tow eyes shall have a .25" radius.

Tow eyes shall be mounted directly to the bumper frame.

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Cutouts shall be provided in the front face of bumper to allow tow eyes to extend out the front.

The tow eyes shall be designed and positioned to allow up to a 9,000 lb. straight horizontal pull in line with the centerline of the vehicle.

The tow eyes shall not be used for lifting of the apparatus.

TOW HOOKS

2 chromed steel tow hooks shall be installed under the bumper and attached to the front frame members.

The tow hooks shall be designed and positioned to allow up to a 6,000 lb. straight horizontal pull in line with the centerline of the vehicle.

The tow hooks shall not be used for lifting of the apparatus.

FRONT BUMPER NOTCH

The front bumper shall be notched for recessing of the Q2B siren. The notch shall be designed so that the bumper is 1 continuous piece. The notch shall be welded in place for strength with a continuous top and bottom flange. All areas shall be polished for appearance. The siren shall be located on the left side of the bumper.

CAB

The cab shall be designed specifically for the fire service and manufactured by the chassis builder.

The cab shall be built by the apparatus manufacturer in a facility located on the manufacturer's premises (no exception).

For reasons of structural integrity and enhanced occupant protection, the cab shall be a heavy-duty design, constructed to the following minimal standards.

The cab shall have 12 main vertical structural members located in the A-pillar (front cab corner posts), B-pillar (side center posts), C-pillar (rear corner posts), and rear wall areas. The A-pillar shall be constructed of solid A356-T5 aluminum castings. The B-pillar and C-pillar shall be constructed from 0.13" wall extrusions. The rear wall shall be constructed of two (2) 2.00" x 2.00" outer aluminum extrusions and two (2) 2.00" x 1.00" inner aluminum extrusions. All main vertical structural members shall run from the floor to 4.625" x 3.864" x 0.090" thick roof extrusions to provide a cage-like structure with the

A-pillar and roof extrusions being welded into a 0.25" thick corner casting at each of the front corners of the roof assembly.

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The front of the cab shall be constructed of a 0.13" firewall plate, covered with a 0.090" front skin (for a total thickness of 0.22"), and reinforced with a full width x 0.50" thick cross-cab support located just below the windshield and fully welded to the engine tunnel. The cross-cab support shall run the full width of the cab and weld to each A-pillar, the 0.13" firewall plate, and the front skin.

The cab floors shall be constructed of 0.125" thick aluminum plate and reinforced at the firewall with an additional 0.25" thick cross-floor support providing a total thickness of

0.375" of structural material at the front floor area. The front floor area shall also be supported with two (2) triangular 0.30" wall extrusions that also provides the mounting point for the cab lift. This tubing shall run from the floor wireway of the cab to the engine tunnel side plates, creating the structure to support the forces created when lifting the cab.

The cab shall be 96.00" wide (outside door skin to outside door skin) to maintain maximum maneuverability (no exception).

The overall height (from the cab roof to the ground) of approximately 99.00". The overall height listed shall be calculated based on a truck configuration with the lowest suspension weight rating, the smallest diameter tires for the suspension, no water weight, no loose equipment weight, and no personnel weight. Larger tires, wheels, and suspension shall increase the overall height listed.

The floor to ceiling height inside the crew cab shall be 54.50" in the center and outboard positions.

The crew cab floor shall measure 46.00" from the rear wall to the back side of the rear facing seat risers.

The medium block engine tunnel, at the rearward highest point (knee level), shall measure 61.50" to the rear wall. The big block engine tunnel shall measure 51.50" to the rear wall.

The crew cab shall be a totally enclosed design with the interior area completely open to improve visibility and verbal communication between the occupants.

The cab shall be a full tilt cab style.

A 3-point cab mount system with rubber isolators shall improve ride quality by isolating chassis vibrations from the cab.

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CAB ROOF DRIP RAIL

For enhanced protection from inclement weather, a drip rail shall be furnished on the sides of the cab. The drip rail shall be painted to match the cab roof and bonded to the sides of the cab. The drip rail shall extend the full length of the cab roof.

INTERIOR CAB INSULATION

The cab shall include 1.00" insulation in the ceiling, 1.50" insulation in the side walls, and 2.00" insulation in the rear wall to maximize acoustic absorption and thermal insulation.

FENDER LINERS

Full circular inner fender liners in the wheel wells shall be provided.

PANORAMIC WINDSHIELD

A 1-piece safety glass windshield shall be provided with over 2,775 square inches of clear viewing area. The windshield shall be full width and shall provide the occupants with a panoramic view. The windshield shall consist of 3 layers: outer light, middle safety laminate, and inner light. The outer light layer shall provide superior chip resistance. The middle safety laminate layer shall prevent the windshield glass pieces from detaching in the event of breakage. The inner light shall provide yet another chip resistant layer. The cab windshield shall be bonded to the aluminum windshield frame using a urethane adhesive. A custom frit pattern shall be applied on the outside perimeter of the windshield for a finished automotive appearance.

WINDSHIELD WIPERS

3 electric windshield wipers with washer shall be provided that meet FMVSS and SAE requirements.

The washer reservoir shall be able to be filled without raising the cab.

ENGINE TUNNEL

Engine hood side walls shall be constructed of 0.375" aluminum. The top shall be constructed of 0.125" aluminum and shall be tapered at the top to allow for more driver and passenger elbow room.

The engine hood shall be insulated for protection from heat and sound. The noise insulation keeps the dBA level within the limits stated in the current NFPA 1901 standards.

The engine tunnel shall be no higher than 17.00" off the crew cab floor

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CAB REAR WALL EXTERIOR COVERING

The exterior surface of the rear wall of the cab shall be overlaid with bright aluminum treadplate that covers the entire rear wall.

CAB LIFT

A hydraulic cab lift system shall be provided consisting of an electric powered hydraulic pump, dual lift cylinders, and necessary hoses and valves.

Hydraulic pump shall have a manual override for backup in the event of electrical failure.

Lift controls shall be located in the driver side stepwell.

The cab shall be capable of tilting 43 degrees to accommodate engine maintenance and removal.

The cab shall be locked down by a 2-point normally closed spring-loaded hook type latch that fully engages after the cab has been lowered. The system shall be hydraulically actuated to release the normally closed locks when the cab lift control is in the raised position and cab lift system is under pressure. When the cab is completely lowered and system pressure has been relieved, the spring-loaded latch mechanisms shall return to the normally closed and locked position.

The hydraulic cylinders shall be equipped with a velocity fuse that protects the cab from accidentally descending when the control is located in the tilt position.

For increased safety, a redundant mechanical stay arm shall be provided that must be manually put in place on the left side between the chassis and cab frame when the cab is in the raised position. This device shall be manually stowed to its original position before the cab can be lowered.

Cab Lift Interlock

The cab lift system shall be interlocked to the parking brake. The cab tilt mechanism shall be active only when the parking brake is set, and the ignition switch is in the on position. If the parking brake is released, the cab tilt mechanism shall be disabled.

GRILLE

A bright finished aluminum mesh grille screen, inserted behind a grille surround, shall be provided on the front center of the cab. The grille surround shall be painted black

#101.

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MIRRORS

A Retrac Aerodynamic, Model 613295, dual vision, motorized, west coast style mirror with chrome finish shall be mounted on each side of the front cab door with spring loaded retractable arms. The flat glass and convex glass shall be adjustable with a remote control within reach of the driver.

DOORS

To enhance entry and egress to the cab, the forward cab door openings shall be a minimum of 37.50" wide x 63.37" high. The crew cab doors shall be located on the sides of the cab and shall be constructed in the same manner as the forward cab doors. The crew cab door openings shall be a minimum of 34.30" wide x 63.37" high.

The forward cab and crew cab doors shall be constructed of extruded aluminum with a nominal material thickness of 0.093". The exterior door skins shall be constructed from

0.090" aluminum.

A customized, vertical, pull-down type door handle shall be provided on the exterior of each cab door. The finish of the door handle shall be chrome/black. The exterior handle shall be designed specifically for the fire service to prevent accidental activation and shall provide 4.00" wide x 2.00" deep hand clearance for ease of use with heavy gloved hands.

Each door shall also be provided with an interior flush, open style paddle handle that shall be readily operable from fore and aft positions and be designed to prevent accidental activation. The interior handles shall provide 4.00" wide x 1.25" deep hand clearance for ease of use with heavy gloved hands.

The cab doors shall be provided with both interior (rotary knob) and exterior (keyed) locks exceeding FMVSS standards. The keys shall be Model 751. The locks shall be capable of activating when the doors are open or closed. The doors shall remain locked if locks are activated when the doors are opened, then closed.

A full length, heavy duty, stainless steel, piano-type hinge with a 0.38" pin and 11-gauge leaf shall be provided on all cab doors. There shall be double automotive-type rubber seals around the perimeter of the door framing and door edges to ensure a weather-tight fit.

A chrome handle shall be provided on the inside of each cab door for ease of entry.

A red webbed grab handle shall be installed on the crew cab door stop strap. The grab handles shall be securely mounted.

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The bottom cab step at each cab door location shall be located below the cab doors and shall be exposed to the exterior of the cab.

Door Panels

The inner cab door panels shall be constructed out of brushed stainless steel. The door panels shall be designed and installed in 2 pieces. The cab door panels shall be removable without disconnecting door and window mechanisms.

ELECTRIC OPERATED CAB DOOR WINDOWS

All 4 cab doors shall be equipped with electric operated windows with flush mounted automotive style switches.

The driver's side lower instrument panel shall also have 3 controls, officer's door window and both crew cab door windows.

CAB STEPS

A dual step shall be provided below each cab and crew cab door. The steps shall be designed with a grip pattern punched into bright aluminum treadplate material providing support, slip resistance, and drainage. The steps shall be a bolt-in design to minimize repair costs should they need to be replaced. The forward cab steps shall be a minimum 25.00" wide, and the crew cab steps shall be 21.50" wide with a 7.00" minimum depth. The step design raises the middle step higher and closer to the cab floor, resulting in a 11.50" distance from the step to cab floor in the cab and a 10.25" distance from the step to cab floor in the crew cab. Stepping distances from the ground to first step shall be approximately 14.00" and from first step to middle step shall be approximately 12.00".

The vertical surface of the upper step well shall be aluminum treadplate.

The first step shall be lit by a white 12-volt DC LED light provided on the step.

CAB EXTERIOR HANDRAILS

A 1.25" diameter slip-resistant, knurled aluminum handrail shall be provided adjacent to each cab and crew cab door opening to assist during cab ingress and egress.

STEP LIGHTS

There shall be 6 white LED step lights with chrome housing installed for cab and crew cab access steps.

• 1 light for the left access steps.

• 2 lights for the left side crew cab access steps.

• 2 lights for the right-side crew cab access steps.

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• 1 light for the right-side access step.

In order to ensure exceptional illumination, each light shall provide a minimum of 25 foot-candles (fc) covering an entire 15" x 15" square placed 10 inches below the light and a minimum of 1.5 fc covering an entire 30" x 30" square at the same 10-inch distance below the light.

The lights shall be activated when the battery switch is on, and the adjacent door is opened.

FENDER CROWNS

Stainless steel fender crowns shall be installed at the cab wheel openings.

GRAB HANDLE(S)

There shall be 4 black offset rubber covered grab handle(s) mounted to be determined at pre-construction to assist in entering the cab and/or crew cab. The grab handle(s) shall be securely mounted.

BEHIND RIGHT SIDE CAB DOOR WINDOW TINT

The window behind the right-side front cab door shall be tinted privacy dark gray.

RIGHT SIDE ROLLUP CREW CAB DOOR WINDOW TINT

The rollup window in the right-side crew cab door shall be tinted privacy dark gray.

LEFT SIDE ROLLUP CREW CAB DOOR WINDOW TINT

The rollup window in the left side crew cab door shall be tinted privacy dark gray.

STORAGE COMPARTMENT

Provided under the forward-facing crew cab seats shall be a transverse compartment.

The compartment shall be divided into upper and lower sections by a removable divider located at the cab floor. The upper section shall be 13.75" wide x 9.00" high x full width

(transverse) of the crew cab. The lower section shall be 15.00" wide x 24.50" high x

15.00" deep on both sides. The compartment shall extend from the bottom of the cab to top of the seat riser.

There shall be 2 double pan doors painted to match the cab exterior with a locking D-

Ring latch with #751 key, 1 on each side of the cab with a web strap for each exterior door provided as a door stop. The clear door opening of each compartment door shall be 10.25" wide x 32.00" high.

The exterior access shall be provided with a brushed stainless steel scuff plate on the lower door frame.

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There shall be 1 drop down door, painted to match the cab interior with 2 non-locking flush pull latches with no louvers on the forward face of the seat riser.

The compartment interior shall be painted spatter gray.

Compartment Light

There shall be 4 white LED strip lights, 1 horizontally mounted in each lower and upper exterior compartment. The lights shall be controlled by an automatic door switch.

CAB ROOF COVERING

The horizontal surface of the cab roof shall be sprayed with UL-LX® polyurethane/polyurea elastomer abrasive resistant material. There shall be an area on the rear crew cab roof that shall be 42.00" from side to side and 20.00" front to back left painted job color for lettering.

The UL-LX abrasive resistant material shall be dark gray.

2 strips of aluminum treadplate, 16.00" wide, shall be installed on each side of the cab and crew cab. The covering shall extend from the rear edge of the crew cab to just behind the lightbar. Edges and fastening screws shall be properly caulked to prevent water from leaking under aluminum. Side warning lights shall not be mounted on top of treadplate.

CAB INSULATION

The underside of the crew cab floor shall be perforated foil faced insulation shall be over a closed cell foam affixed with pressure sensitive adhesive and further secured with mechanical fasteners to maximize acoustic absorption and thermal insulation.

ACCESS DOORS

There shall be 2 double pan doors painted to match the cab exterior with a locking, black finish D-Ring latch with #751 key, 1 on each side of the cab, provided over the front wheel well. A web strap for each exterior door shall be provided as a door stop.

The clear door opening shall be 17.00" wide x 23.50" high.

STORAGE COMPARTMENT ON CAB ROOF

A storage compartment shall be provided on the crew cab roof. The compartment shall be located to the rear of the cab roof and centered side to side.

The compartment shall be approximately 60.00" wide x 48.00" deep x 10.00" high with a top opening door. Door shall have a hinge on the front side and shall be held open with gas cylinder strut. The door shall lap the compartment sides and latch with 2 butterfly latches at the rear.

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The compartment and door shall be constructed of aluminum treadplate.

The compartment shall be bolted to the cab roof with .25" spacers to allow air flow between the compartment and cab roof.

WEDGE FOOTREST

A wedge footrest shall be provided in each rear facing seat riser in place of the rear facing heaters. They shall be constructed of bright aluminum treadplate. Each footrest shall be removable.

CAB DASH

The driver side dash, switch panel located to the right of the driver, and center console shall be constructed of aluminum and painted fire smoke gray.

The officer side dash shall be a flat top design with an upper beveled edge to provide easy maintenance and shall be constructed out of aluminum and painted to match the cab interior.

The instrument gauge cluster shall be surrounded with a high impact ABS plastic contoured to the same shape of the instrument gauge cluster.

MOUNTING PLATE ON ENGINE TUNNEL

Equipment installation provisions shall be installed on the engine tunnel.

A .25" smooth aluminum plate shall be bolted to the top surface of the engine tunnel.

The plate shall follow the contour of the engine tunnel and shall run the entire length of the engine tunnel. The plate shall be spaced off the engine tunnel .50" to allow for wire routing below the plate.

The mounting surface shall be painted to match the cab interior.

CAB INTERIOR

The cab interior shall be constructed of primarily metal (painted aluminum) to withstand the severe duty cycles of the fire service.

The engine tunnel shall be padded and covered, on the top and sides, with dark silver gray 36-ounce leather grain vinyl resistant to oil, grease, and mildew.

For durability and ease of maintenance, the cab interior side walls shall be painted aluminum. The rear wall shall be painted aluminum.

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Headliner shall be installed in both forward and rear cab sections. Headliner material shall be vinyl. A sound barrier shall be part of its composition. Material shall be installed on aluminum sheet and securely fastened to interior cab ceiling.

Forward portion of cab headliner shall permit easy access for service of electrical wiring or other maintenance needs.

All wiring shall be placed in metal raceways. Routing through holes in tubing shall not be accepted due to chaffing that installation shall cause.

CAB INTERIOR UPHOLSTERY

The cab interior upholstery shall be 36 oz dark silver gray vinyl.

CAB INTERIOR PAINT

The cab interior metal surfaces, excluding the rear heater panels, shall be painted fire smoke gray, vinyl texture paint.

The rear heater panels shall be painted black, vinyl textured paint.

CAB FLOOR

The cab and crew cab floor areas shall be covered with Polydamp™ acoustical floor mat consisting of a black pyramid rubber facing and closed cell foam decoupler.

The top surface of the material has a series of raised pyramid shapes evenly spaced, which offer a superior grip surface. Additionally, the material has a 0.25" thick closed cell foam (no water absorption) which offers a sound dampening material for reducing sound levels.

The rubber floor material shall have aluminum treadplate overlay. The aluminum treadplate floor shall entirely cover the rubber floor material.

The vertical surface of the upper step wells in the crew cab shall also be covered with floor mat overlaid with aluminum treadplate.

DEFROST/AIR CONDITIONING SYSTEM

A ceiling mounted combination heater, defroster and air conditioning system shall be installed in the cab above the engine tunnel area.

Cab Defroster

A 54,000 BTU heater-defroster unit with 690 SCFM of air flow shall be provided inside the cab. The heater-defrost shall be installed in the forward portion of the cab ceiling.

Air outlets shall be strategically located in the cab header extrusion per the following:

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• 1 adjustable shall be directed towards the left side cab window

• 1 adjustable shall be directed towards the right-side cab window

• 6 fixed outlets shall be directed at the windshield

The defroster shall be capable of clearing 98 percent of the windshield and side glass when tested under conditions where the cab has been cold soaked at 0 degrees

Fahrenheit for 10 hours, and a 2 ounce per square inch layer of frost/ice has been able to build up on the exterior windshield. The defroster system shall meet or exceed SAE

J382 requirements.

Cab/Crew Auxiliary Heater

There shall be no auxiliary heater provided in the rear facing seat risers.

Air Conditioning

A condenser shall be a minimum 59,644 BTU output that meets and exceeds the performance specification shall be mounted on the radiator. Mounting the condenser below the cab or body would reduce the performance of the system and shall not be acceptable.

The air conditioning system shall be capable of cooling the average cab temperature from 100 degrees Fahrenheit to 75 degrees Fahrenheit at 50 percent relative humidity within 30 minutes. The cooling performance test shall be run only after the cab has been heat soaked at 100 degrees Fahrenheit for a minimum of 4 hours.

The evaporator unit shall be installed in the rear portion of the cab ceiling over the engine tunnel. The evaporator shall include 1 high performance heating core, 1 high performance cooling core with (1) plenum directed to the front and 1 plenum directed to the rear of the cab. The rear plenum shall be covered with a formed plastic cover.

The evaporator unit shall have a 52,000 BTU at 690 SCFM rating that meets and exceeds the performance specifications.

Adjustable air outlets shall be strategically located on the forward plenum cover per the following:

• 4 shall be directed towards the seating position on the left side of the cab

• 4 shall be directed towards the seating position on the right side of the cab

Adjustable air outlets shall be strategically located on the rear plenum cover per the following:

• Minimum of 5 shall be directed towards crew cab area

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A high efficiency particulate air (HEPA) filter shall be included for the system. Access to the filter cover shall be secured with 4 screws.

The air conditioner refrigerant shall be R-134A and shall be installed by a certified technician.

Climate Control

An automotive style controller shall be provided to control the heat and air conditioning system within the cab. The controller shall have 3 functional knobs for fan speed, temperature, and air flow distribution (front to rear) control.

The system shall control the temperature of the cab and crew cab automatically by pushing the center of the fan speed control knob. Rotate the center temperature control knob to set the cab and crew cab temperature.

The AC system shall be manually activated by pushing the center of the temperature control knob. Pushing the center of the air flow distribution knob shall engage the AC for max defrost, setting the fan speeds to 100 percent…