Attachment 1 - Specification # C10-070UB.17.docx

ATTACHMENT 1 – Specification # C10-070UB.17 Request for Proposal (RFP) No. 240000003048 Under Bridge Inspection Unit

All items specified and furnished by the Contractor shall be new, shall be of the latest model in current production, and shall include all standard features normally offered with these models.

Referenced make/model of the truck cab and chassis is Kenworth T880 twin-steer. Bidder may offer alternate make/model or exceptions to the specifications. Product literature for the make/model offered must be provided with bid response.

Bidder’s Response: Indicate offered Truck:

Make:

Model:

Referenced make/model of the under bridge inspection unit is Aspen Aerials B-62. Bidder may offer alternate make/model or exceptions to the specifications. Product literature for the make/model offered must be provided with bid response.

Bidder’s Response: Indicate offered Under Bridge Inspection Unit:

Make:

Model:

Bidder must respond to each section with YES or NO (or enter additional information as requested). If NO is indicated, provide explanation and available option.

Bidder’s Response

a. Insulated headliner and back panel

b. USB port

c. Dual sun visors

d. Arm rests and door pulls

e. Windshield washer

f. 2-speed wipers

g. Dome light

h. Cab grab handles, interior or exterior

i. Two outside, West Coast mirrors, 16"x7", with convex mirrors, both sides

j. Heater and defroster, heavy duty fresh air type

k. Fuel tank and steps, 100 gallon, as large a diameter as possible

l. Power steering.

m. Instrumentation shall include all standards as a minimum

n. Air conditioning

o. AM-FM radio

p. Air horns

q. One (1) first aid kit

r. One (1) reflective triangle set

s. One (1) Fire extinguisher

t. Strobe lights mounted in rear bumper and behind/above cab, shall be visible 360 degrees

u. Body builder wiring

v. Tires Front: 425/65R22.5, 20 ply, mounted on 12.25 steel disc wheels

w. Tires Rear: 11R22.5, 16 ply, mounted on 8.25 steel disc wheels

x. Air actuated brakes

y. Underdeck air compressor with minimum capacity of 13 CFM, with air dryer with heater and automatic moisture drain Bidder must identify make/model of proposed underdeck compressor in Bidder’s Response column.

z. Dash mounted warning light for low air pressure

aa. Self-adjusting slack adjuster for each wheel

ab. Dash mounted air pressure gauge

ac. Air release parking brake

a. Full undercoating shall be applied in a continuous and uniform coating, from all under deck body sheet metal except the drive shafts, drain holes, lubrication points

b. Engine crankcase, heavy castings and suspension components shall be kept free of coating material

c. Chassis shall have standard factory undercoating

a. The body shall be constructed of plate steel

b. The deck shall be welded to the heavy-duty structural steel crossmembers and longitudinal with side and end rails

c. Deck surface shall be finished with non-skid paint

d. Access steps

i. The body shall have two locations with access steps installed on the left and rear of the deck

ii. The steps shall be constructed with heavy duty material

iii. First step shall be 15" to 18" from ground

e. Under deck toolboxes

i. Two under deck tool boxes shall be installed, one on the right side and one on the left side of the body

ii. Boxes shall be constructed of aluminum

f. Doors shall be downward opening with cable stops and keyed alike locks

g. Three on-deck boxes shall be supplied with upward opening doors and keyed alike locks

h. Mud flaps

i. The unit shall have four anti-sail no advertising mud flaps, installed in front and back of rear tandem wheels

ii. The flaps shall have road clearance of 10” when truck is empty

a. Both the pedestal and subframe shall be constructed of high strength steel and shall have sufficient strength to withstand all torsional stress imposed by the boom assemblies with the maximum rated load in the work platform

b. The pedestal shall be mounted behind the truck cab

c. The pedestal shall be welded to a tubular or beam type subframe which shall extend the full length of the chassis frame

d. The subframe shall be fastened to the chassis frame with mounting plates and grade 8 bolts

a. Turret #1:

i. The main turret (#1) shall be mounted on top of the pedestal and hinged to the main boom

ii. Turret shall rotate the booms off both sides of the vehicle

b. Turret # 2:

i. Turret #2 shall be mounted at the end of Boom #1 and hinged to Boom #2

ii. Turret shall rotate a minimum of 180 degrees when all booms are deployed

iii. Turret shall be controlled hydraulically by a cylinder to eliminate leveling arms

iv. Turret shall have the capability of being controlled manually to adjust for bridge slopes of up to 5 degrees

c. Each turret shall rotate on a heavy-duty shear ball type bearing protected against dirt and moisture, and provided with means for pressure lubrication

d. Rotation shall be powered by a reversible hydraulic orbital motor driving a gear box, which shall prevent freewheeling in case of hydraulic failure

e. A counterweight shall be attached to the pedestal assembly and shall rotate with the bridge inspection unit on the opposite side, and stay within the width of unit when the booms are deployed

a. All telescopic boom sections shall be equipped with high wear capacity nylon support rollers or pads

b. There shall be NO exposed hose reels

c. Boom #1

i. The main boom (#1), minimum 16'11" long, shall be hinged to the mainframe pedestal turret

ii. Sidewalks width clearance shall be 12’6” minimum

d. Boom #2

i. Boom #2 shall be attached to the end of Boom #1 and provide vertical clearance of 24’ minimum

ii. Boom shall be capable of articulating to a horizontal position, perpendicular from the bridge so that the inspection bucket can access the bridge fascia

e. Boom #3

i. Boom #3 shall be telescopic and hinged to the end of Boom #2.

ii. Boom must be capable of reaching a minimum of 55’ horizontally under the bridge when Boom #2 is in a vertical (90°) position

f. Boom #4

i. Boom shall be a pivoting end section with an articulating range of 90° above horizontal, and 35° below horizontal

ii. Boom shall be telescoping providing a reach of 13’ minimum, measured from the top of Boom #3 to the top of the platform

iii. Boom must be capable of reaching a minimum of 55’ horizontally under the bridge when Boom #2 is in a vertical (90 degree) position

g. Boom Cylinders

i. Booms shall have full hydraulic powered cylinders

ii. All cylinders shall be pilot operated, double-acting with integral safety holding valve

iii. Chrome rods shall be provided on all lift cylinders

h. Cylinder Swivel Pins

i. Cylinder shall be attached to the booms with high strength steel pins

ii. Cylinder pins may be secured with either keeper bolts in the head of the pin or locking nuts

iii. All cylinders to have replaceable bushings

a. One 3-man aluminum platform with a minimum 700 lb. capacity shall be hinged at the end of the fourth boom and shall automatically be kept level at all times by a hydraulic leveling system

b. Platform shall be capable of being rotated hydraulically 180°

c. Platform dimensions shall be a minimum of 40"x60"x44" deep

d. An access gate shall be provided

a. Three safety harnesses and lanyards shall be furnished

b. Attachments for lanyards shall be installed in the platform

a. The primary source of power for operation of the under bridge inspection aerial device hydraulic and electric systems shall be provided by a PTO-driven, transmission-mounted hydraulic pump

b. An auxiliary engine will be supplied and shall have the capacity to perform more than one unit movement simultaneously. This auxiliary engine shall include the following:

i. 12-volt electrical system with keyed ignition, electric starter, and alternator

ii. Fuel connection to the chassis fuel tank(s).

iii. Diesel engine fuel filtration system

iv. Engine compartment cover which allows complete access to engine and hydraulic system components

v. Engine Tier 4 emission compliant

a. All movements of the under bridge inspection aerial device shall be made by hydraulic pressure

b. All hydraulic cylinders shall be double acting with direct coupled safety check valves as protection, in case of pump or hose failure

c. Reservoir shall be of steel welded construction with 50-gallon (minimum) storage capacity

d. Reservoir shall have baffles and exterior oil sight level gauge

e. Hydraulic oil shall be filtered through a return line 10-micron filter with replaceable element

f. A 100-mesh strainer shall be located on the suction side of the reservoir

g. All filters shall be accessible for easy element replacement

h. Shut-off valve shall be provided and installed to allow for cleaning

i. Hydraulic fluid transmission lines shall be flexible hoses, wired braid reinforced and shall have a weather and abrasion resistant covering

j. Bursting pressure rating shall be at least 200% of the system operating pressure

a. Three complete sets of controls shall be provided:

i. One set of wired/wireless controls for use at the pedestal and remotely

ii. One set of wired/wireless controls at the basket

iii. One set of hydraulic controls at the pedestal

b. In case of electrical failure, the hydraulic valve at the pedestal shall be capable of overriding the platform and the remote controls

c. All movements of the bridge inspection unit shall be controlled by low voltage electrical power, direct hydraulic power, or a properly balanced combination thereof

d. All boom articulation and turret rotation controls must be equipped with two-way, return to neutral type levers

e. These functions shall also have proportional flow control and precise metering capability to provide smooth operation of the unit in all working positions and to ensure the safety of operating personnel at all times

f. Controls shall be arranged to allow for each individual movement separately or in any combination desired

g. Controls shall be located to facilitate maintenance access

h. Manual overrides shall be provided for all functions

i. Remote carrier and auxiliary engine kill switches shall be installed at the pedestal and platform control station

j. A color display shall be provided at the pedestal with control of front and rear suspension lockouts, counterweight and accessories

k. Display shall also show status of limit switch system

a. Interlock to prevent operation of under bridge inspection aerial device if suspension lockouts are not engaged

b. Limit switches to prevent rotation or articulation of booms into unstable positions

c. Relief valve and switches to prevent overloading hydraulic system with excessive pressures

d. Emergency kill switch of truck and auxiliary engines at the pedestal, basket and in truck cab

e. Automatic check valves on hydraulic cylinders in case of pump or hose failure

f. Automatic audible alarm to signal excessive slope conditions

g. All boom lift cylinder shafts shall be of chrome rods to resist corrosion and shall be able to withstand a 100 hour salt spray test

a. Clearance

b. Stop

c. Tail

d. Turn

e. Back up

a. Four LED. corner strobe lighting to truck. Two in rear light channel; two in front grille area. To have separate master switch located in chassis cab. Whelen # 50*02Z*A, 500 series linear super - LED or equivalent. Programmed per MDOT construction vehicle standards of amber/green lights.

b. Two LED strobe lights mounted on both sides of the body. Install on same master on/off switch as the 4 corner strobes. Whelen # 50*02Z*A, 500 series liner super - LED or equivalent

c. Two mini light bars to light support bar on both Curb side and Street side of boom rest. Lights to be visible from front, rear and sides of truck. To have separate on/off master switch located in chassis cab. Whelen R2LPHPA LED mini light bar or equivalent.

d. Four LED perimeter lights. Two mounted just under mini light bars on both curb side and street side mounted all the way to the outer edge to eliminate shadows and two mounted at rear just under the tail shelf on both the curb side and street side. to have separate master switch located in chassis cab. Whelen # PELCB perimeter lights or equivalent.

e. Two Reverse/Work LED Flood lights in rear chassis frame rails. To automatically come on when chassis is in reverse and to have separate on/off switch located in chassis cab. Whelen # PFBS6 work lights or equivalent

f. Two Work LED Flood lights. One mounted on light support bar facing cargo area. One mounted at rear facing tail shelf area. To have separate master on/off switch located in Chassis Cab. Whelen # PFBS6 work lights or equivalent

g. One Go-Light mounted just below upper strobe light on Curb Side with WIRELESS chassis control and WIRELESS handheld control. Go-light Model # 20074 or equivalent

h. Frame extension will NOT be accepted.

END OF SPECIFICATION