7-Spec 3 - Kenworth K370 Single Operator Patch Truck - PCN ADD26A.36.pdf

KENWORTH K370 FRONT BOOM IN-CAB CONTROLLED SPRAY INJECTION

POTHOLE PATCHER

PCN ADD26A.36

GENERAL SPECIFICATIONS

It is the intent of the following specification to describe a spray injection asphalt repair/pothole patch/alligator crack sealing machine, for mounting on a cab-over, single axle, 33,000 GVW truck. The spray injection unit shall be designed for pavement repair of potholes, degraded areas, and cracks. Unit must meet or exceed the following specifications.

The unit must be able to be operated by a single person/driver from within the truck cab. The spray injection system must be able to blow debris and water from the work area, apply a tack coat of heated emulsion, spray an aggregate and emulsion mix into the repair area at a controlled mix ratio, and cover the repair area with an uncoated surface layer of aggregate.

The unit must be able to spray aggregate (ranging from 1/8” to 1/2”) and emulsion at a controlled mix ratio in order to maintain high quality and consistency from patch to patch. The spray boom shall utilize a two -section articulating design with spray head oscillation feature for a more precise material application.

Spray head must also include an air reduction system to control aggregate rebound and reduce loss of materials.

The unit must be configurable with a single chamber or a dual chamber hopper. Dual chamber hopper is adjustable to 50/50 or 60/40 to allow for two different aggregate gradations. The hopper must be designed with a rear discharge feature for speedy offload of aggregate and ease of maintenance.

The unit must be equipped with a SPECS (Smart Patching Equipment Control System) that delivers the correct aggregate and emulsion mixture every time. When patching, as the operator increases or decreases the aggregate output rate to fill the pothole, the control system will automatically adjust the emulsion output to maintain the desired mix ratio, as determined by testing or through an emulsion mix design lab. The control system also includes an in-cab 7-inch touchscreen display, which allows the operator to view and interact with the following; patching steps process, emulsion temperature, aggregate hopper level, material output rates, calibration information, machine status indicators and warnings, and spray boom position warning.

The unit must also be equipped with the InPave telematics pothole patching management system or similar. InPave helps agencies monitor production, performance and location of the pothole patcher and crew. As potholes are repaired, the data is collected with GPS technology, gathered by the cloud-based InPave management system and transmitted back to a secure server for access.

The Spray Injection Pothole Patcher must be new and of current production. Units shall include all items listed and include mounting on customer supplied chassis, service and operator’s manuals, parts manuals, on-site training, and be ready for operation at time of delivery.

PCN ADD26A.36

TRUCK/PATCHER SPECIFICATIONS (EQUAL TO OR GREATER THAN)

1) TRUCK CAB & CHASSIS

a) Cab-Over Class 7 Kenworth Model K370

b) GVWR: 33,000 lbs.

c) Front Axle: 12,000 lbs.

d) Rear Axle: 21,000 lbs.

e) Engine: Minimum 220 hp @ 2400 rpm and 60 hp @ 800 rpm at idle

f) Transmission: Allison 3000 Series

g) PTO: 10-bolt: Left side outlet

h) Tires/Wheels: 11R22.5

i) Wheelbase: 146”

j) CCA: 135”

k) After Frame: 72”

l) Rear Springs: 23,000 lbs. with shock absorbers

m) White exterior paint

2) AGGREGATE HOPPER

a) Minimum 5 yard3 (3.8m3) total capacity

b) Low profile-designed for easier loading

c) Configurable with Single or Dual-chamber hopper. Dual chamber is adjustable to 50/50 or 60/40 to allow for two different aggregate gradations

d) Each hopper chamber to have its own discharge auger to control aggregate flow

e) 55-degree sloped side walls eliminate the need for a material vibrating system

f) Inner hopper walls are lined with 1/8” thick HMW sheeting for rust prevention

g) Auger grates span the entire length of each discharge auger for safety

h) Adjustable output rate controlled in the cab. Each discharge auger to be independent, hydraulic driven

i) Retractable tarp to keep aggregate clean and dry

j) Capable of rear discharge for speedy offload of aggregate

3) AGGREGATE DELIVERY

a) Aggregate to be introduced to airstream through a venturi eductor

b) Unit must be able to spray aggregate ranging from 1/8” to 1/2”

c) Eductor chamber must be equipped with an access panel for cleanout without having to remove the aggregate hose

d) Must be equipped with removable conveyor assembly for ease of maintenance

e) Steel tubing to be utilized on all unmoving sections of the delivery system

f) Abrasion resistant, steel wire reinforced hose with antistatic layers to be used in all flexible sections of the delivery system

g) Spray head assembly to be equipped with a replaceable wear plate to direct aggregate down into the patch

h) Aggregate to be coated by heated emulsion mid-air as it is sprayed into the patch

4) AGGREGATE BLOWER

a) Efficient Blower produces a maximum of 350 CFM flow at 10 PSI

b) Positive displacement, High-volume, low pressure hydraulically driven

c) Mounted on a platform with rubber isolators

d) Completely contained inside acoustically insulated compartment

5) EMULSION SYSTEM (EMULSION TANK)

a) Minimum capacity of 260 gallons

b) Fully insulated and heated

c) Contains a tank level gauge visible from operator’s position inside the cab

d) Contains an 8” top access hatch for filling/inspection

e) Contains a 19” side access for cleaning/inspection

f) Equipped with 2” valve and 3” cam-lock connector at the sump of the tank for easy filling/draining

6) EMULSION HEATING SYSTEM

a) Provides heat to all major components in the emulsion delivery system (tank, strainer, pump, spray valve, spray nozzles)

b) Provides heat trace to emulsion lines

c) Complete system to be operated by onboard AC generator during working hours

d) Onboard generator must include a Class A ground fault circuit interrupter (GFCI) for personnel protection

e) Complete system to be operated by 208V/240V single phase land line power during non-working hours

f) Eliminates daily clean out and minimizes waste and disposal costs

g) Circulates 50/50 antifreeze solution independent from the truck engine coolant

h) Lighted digital ammeter and voltmeter with color status indication

i) In-cab temperature monitoring and thermostat control

j) Capable of maintaining emulsion temperature up to 175°F

k) Heating surfaces must not exceed 212°F during operation to prevent boiling of emulsion

7) EMULSION DELIVERY SYSTEM

a) Hydraulically driven emulsion pump to allow variable output rates

b) Pump speed is electrically controlled to provide correct mix ratio with aggregate

c) Emulsion pump and strainer completely contained inside heated compartment

d) Emulsion delivery lines heat traced all the way from pump to spray valve

e) Tank shut-off valve prevents emulsion from entering the emulsion delivery system during/after cleanout or purge

f) Includes multi-use hose for loading, system purge and cleaning

g) Pump can be utilized to load emulsion

8) FRONT MOUNTED SPRAY BOOM (WORKING BOOM)

a) Covers 211 square feet of patching area

b) Minimum reach of 14.5 feet when fully extended

c) Minimum reach of 11 ft from lane centerline to road shoulder

d) Must utilize two horizontal pivots and one vertical pivot for optimum spray head positioning

e) Inner section is capable of being rotated a minimum of 90°

f) For ease of movement, equipped with a dual acting hydraulic cylinder

g) Outer section is capable of being rotated a minimum of 270°

h) Outer section is capable of being raised/lowered independently of the inner section

i) For ease of movement, equipped with a hydraulic rotary actuator on outer section

j) Hydraulic, air, and antifreeze hoses use quick disconnect fittings at the bulkhead/truck cab

k) Emulsion lines are heated for the entire length of the boom

l) In-cab control to release and stow the boom, with stowed safety indicator

m) High intensity LED auxiliary headlights, mounted to boom framework

n) Boom storage is lower than windshield

NOTE: Telescoping/tri-fold booms are not acceptable.

NOTE: Boom shall not restrict driver visibility and should lock in place from within the cab

9) FRONT MOUNTED SPRAY BOOM (SPRAY HEAD ASSEMBLY)

a) Air reduction feature engages automatically during aggregate placement

b) Automatic purging of emulsion nozzles, completed after each application

c) Capable of moving in a circular (oscillating) pattern for better coverage and compaction

d) Three replaceable emulsion spray nozzles spaced 120° apart to coat the aggregate evenly

e) Spray nozzles equipped with individual shut-off valves

f) Spray head equipped with shut-off valves for air and emulsion

g) Heated emulsion spray valve

h) Heated spray head and nozzles

10) EQUIPMENT CONTROL SYSTEM

a) One-person operation from driver’s seat

b) All patching functions performed in the cab, including preparing repair site, tack coating, patching and dust coating

c) Patching functions are set up in (4) easy-to-select steps

d) Engages proper machine function to complete current step

e) Ratio of emulsion to aggregate is kept constant by microcontroller as operator changes output rate

11) TOUCHSCREEN OPERATOR DISPLAY (IN-CAB CONTROLS)

a) Select patching step

b) Displays machine status, indicators, and alarms

c) Adjustable mix ratio

d) Adjustable emulsion thermostat

e) Aggregate hopper level gauge(s)

f) Calibrates material outputs

g) Safety operation zone as defined by the operator with lane departure warning

h) Notifies if boom leaves safe operation zone

i) Display mounting is fully adjustable

12) JOYSTICK (IN-CAB CONTROLS)

a) Controls boom throughout its full range

b) Unintentional movement/operation prevented by operator presence switch

c) Controls patch operation start/stop, toggle next patch step, spray head oscillation, and hopper chamber selection

d) Position is fully adjustable for operator comfort

13) SPRAY RATE CONTROL (IN-CAB CONTROLS)

a) Ergonomic and easily accessible single dial to control material output rate

14) OPERATOR’S CONSOLE (IN-CAB CONTROLS)

a) Switches for optional flashers/lights

15) TELEMATICS SYSTEM (IN-CAB CONTROLS)

a) InPave compatible

b) Cloud-based

c) Secure access

d) Multiple search/reporting functions

e) Accessible from any internet-ready device

f) Generates various analytical reports to assist with road network management

g) GPS tracking for each machine and repair site

h) Able to convert GPS data to a Shape File to incorporate into GIS systems

16) PTO & HYDRAULIC SYSTEM

a) No auxiliary engine required to run the patching operation

b) Pumps attached directly to truck PTO; no exposed shaft

c) 2 Gallon Cyclonic Reservoir for deaeration of oil, uses less oil, and increases pump efficiency

d) Easy to change spin-on filter element

e) Proportional control valves in the side compartment and on boom for easy access

f) Variable-output hydraulic pumps allow for patching while moving the vehicle at slow speeds

17) CLEANING SYSTEM

a) Must be equipped with a system that automatically purges spray nozzles after each repair cycle is completed.

b) Must be equipped with a manual purge system that clears all emulsion lines, pump, and strainer

18) INSPECTION PLATFORM

a) Diamond plate deck surface for safe access to the hopper and emulsion tank port

b) Large access area measuring (55” L x 22” W) with landing (26” L x 22” W)

c) Built-in ladder folds up for storage during travel

d) Sloped and treaded rungs for ease of use and safety

e) Equipped with safety handrails

19) STORAGE COMPARTMENT

a) Large 98” W x 25” D

b) Lockable

c) Located on passenger side

d) Lighting inside compartment

20) STANDARD SAFETY EQUIPMENT

a) DIRECTIONAL ARROW BOARD

i) DOT 30x60 LED 15 light, arrow board. Mounted on the rear of the patch unit with in-cab controls

b) STROBE LIGHTS

i) Single LED (Whelen L41AP) mounted on top of emulsion tank.

c) WARNING LIGHTS

i) Two (2) Rear LED Flashers located at deck level by taillights

21) ADDITIONAL SAFETY ITEMS

a) All required safety placards/decals are provided by the manufacturer and fixed in the proper location to comply with all federal/state safety regulations at the time of delivery

b) All hazards are identified in maintenance and operator’s support manuals – listing the types/levels of hazards, and proper avoidance practices

c) 2.5 lb. ABC In-cab mounted fire extinguisher

22) LIGHTING

a) LED Boom flashers

b) LED Boom work light

c) LED Side flashers

d) LED Platform work light(s)

e) LED Compartment lights

f) LED Dual Strobes

23) CAMERA SYSTEMS

a) Brigade 360 Birds-eye Camera System. Includes 4 cameras, MDR (Mobile digital recorder) with a

10” in-cab display, Wi-Fi and 4G capabilities.

b) Single rear Back-up Camera with Night vision and 7” in-cab display

24) EQUIPMENT STORAGE

a) Tool Holders

b) Cone Holders

25) WARRANTY

a) 12-month warranty for any manufacture defects

b) 12-month warranty on parts and labor

c) Commences from the date the Startup Training is completed

d) Copy of warranty to be included in the bid response

26) TRAINING

a) Included in the bid price

b) Manufacturer provides a training program that covers the machine’s safe operational practices and routine maintenance procedures

c) Minimum two days of training with operators and mechanics

d) Purchase includes an on-site follow up, inspection and training visit performed by a manufacturer’s technician within the first year of ownership. This service is in addition to the initial startup training.

27) MANUALS

a) Two sets of operator’s manuals provided

b) Two sets of parts manuals provided

28) KEYS

a) Two sets of keys

THE DEALER IS RESPONSIBLE FOR PROVIDING TITLE, COUNTY TAG AND REGISTRATION. THIS SHALL INCLUDE THE TEMPORARY TAG, TWO WAY OVERNIGHT SHIPPING OF ALL DOCUMENTATION AND ANY

ASSOCIATED FEES

IN ACCORDANCE WITH HILLSBOROUGH COUNTY FLEET MANAGEMENT POLICY, DEALER IS RESPONSIBLE FOR ARRANGING OFFLOAD CAPABILITIES FOR THEIR VEHICLES OR EQUIPMENT BEING DELIVERED.

THE DEALER WILL PROVIDE HILLSBOROUGH COUNTY FLEET MANAGEMENT WITH MINIMUM QUARTERLY

UPDATES ON THE BUILD/ORDER STATUS OF THE EQUIPMENT.

DEALER MUST NOT UTILIZE OEM WIRING FOR EQUIPMENT ADD‐ONS DEALER MUST ABIDE BY GENERAL

PRACTICES COVERED UNDER OEM.