COMPONENT DESCRIPTION AND SPECIFICATIONS ENGINE SERVICE BRAKE SYSTEM The 210M HAULPAK ® Truck is powered by a Cummins KTTA--19C diesel engine. It is capable of speeds up to 35 MPH (56.7 km/h). The service brakes are controlled by an all hydraulic actuation system. Depressing the service brake pedal actuates front dry disc brakes and rear wet disc brakes. Automatic Emergency Braking is provided if system pressure falls below a preset value. All functioning wheel brakes will be automat- ically applied by accumulators. TRANSMISSION The diesel engine drives a remote-mounted Allison CLT-6063 transmission incorporating a TC683 torque converter.
The transmission has six "Forward" speeds and two "Reverse" speeds and uses Allison Transmission Elec- tronic Control (ATEC) for complete automatic shift sequencing. DYNAMIC RETARDING Dynamic retarding is actuated by depressing the operator’s retarder pedal which applies oil-cooled, rear mounted, wet disc brakes only; the front brakes are not applied . Application of the retarder pedal may be fully modulated and should be used to slow the truck during normal truck operation, to con- trol speed coming down a grade or to make non-emergency stops. Use of the retarder pedal saves wear on the front brakes and provides better steering control.
The operator may select "R1" or "R2" for Reverse, "N" for Neutral, or any one of the six Forward driving ranges by using the Trans- mission Range Selector. Each position (R2, R1, N, D, 5, 4, 3, 2, 1) is selected by releasing a range locking mechanism on the lever and choosing the desired range. "D" will permit completely automatic up and down shifts through all six ranges. "5" will limit upshifts to 5th range only. "4" will limit upshifts to 4th range only. "3" will limit upshifts to 3rd range only. "2" will limit upshifts to 2nd range only. "1" is a first range hold position and no up- shifts are permitted.
The HAULPAK ® Truck is equipped with an orbital power steering system mounted un- der the cab floor with noise and vibration isolators. An accumulator automatically pro- vides emergency power to safely steer the truck while stopping. POWER STEERING "R1" or "R2" REVERSE position is used to back the truck. "R1" position should be used for normal reverse operation. This range se- lection utilizes the standard 5.12:1 gear re- duction ratio. "R2" position may be used for job operations that would benefit from a higher speed reverse operation. This range selection utilizes a 3.43:1 gear reduction ra- tio.
INSTRUMENTS The cab instrument panel displays for the operator all switches and gauges which are necessary to safely control the truck and monitor the truck’s operating systems. FINAL DRIVE SUSPENSION The Planetary Final Drive has full floating axle shafts and a plug-in differential carrier assem- bly. HYDRAIR ® II suspension cylinders located at each wheel provide a smooth and comfort- able ride for the operator and dampens shock loads to the chassis during loading. HB1042 Component Description and Specifications HB1-1