Operation - Section 3 OM3012.1 Page 3-8 Operating Instructions TOWING 6. Reduce engine RPM as last stage of hoist cylinder begins to extend and let engine go to low idle as last stage reaches half-extension. Prior to towing a truck, many factors must be carefully considered. Serious personal injury and/or significant property damage may result if important safety prac- tices, procedures and preparation for moving heavy equipment are not observed. 7. Release hoist lever before last stage of hoist cylin- der reaches full extension to avoid over extension and possible damage to cylinders. 8. After material being dumped clears body, lower body to frame.
Both right and left planetary sun gears/drive axles should be removed before any towing. Refer to Section "G" in the Service Manual for these instruc- tions. Extensive secondary damage can occur to final drive components and/or transmission, if truck is towed without first remov- ing sun gears/drive axles. To Lower Body : 9. Move hoist lever (depress the hoist switch release button, if equipped) forward to "down" position and release. Releasing the lever places hoist con- trol valve in the "float" position allowing the body to return to frame. NOTE:
If dumped material builds up at body tail- gate and body cannot be lowered, shift Transmis- sion Range Selector to "D" (Drive), release Brake Lock, and drive forward to clear material. Stop, shift Transmission Range Selector to "N" (Neu- tral), apply Brake Lock and lower body. ALWAYS TOW A DISABLED VEHICLE FROM THE FRONT ! A disabled machine may be towed after the following MINIMUM precautions have been taken. 1. Shut down engine. 2. Refer to operator’s cab for towing decal for any special instructions. The HAULPAK ® Truck must not be moved with the dump body raised except for emergency moves only.
Failure to lower body before moving truck may cause damage to hoist cylinders, frame and/or body hinge pins. 3. If truck is equipped, install hydraulic connections for steering and dumping between towing and towed vehicles. 4. Be certain tow bar capacity is approximately equal to 1.5 times the gross vehicle weight of vehicle being towed. 5. Determine that towing vehicle has adequate ca- pacity to both move and stop the towed truck under all conditions. 10. With body returned to frame, move Transmission Range Selector to "D" (Drive), release Brake Lock, and leave dump area carefully. 6. Protect both operators in the event of tow bar failure. 7.
Block disabled truck to prevent movement while attaching tow bar. 8. Release disabled truck brakes and remove block- ing. Do not tow the truck any faster than 5 MPH (8 kph). 9. Sudden movement may cause tow bar failure. Smooth and gradual truck movement is preferred. 10. Minimize tow angle at all times - NEVER EXCEED 30 o . The towed truck must be steered in the direc- tion of the tow bar.