Operating Instructions - Section 30 03/13 OM3054 Page 30-22 5. If the engine on the disabled truck is opera- tional, start the engine before towing to release the parking brake, and to enable steering and braking. 8. Remove all blocking, and release the disabled truck brakes. Begin towing the disabled truck. A spotter must signal the operators to stop the tow if any signs of danger or damage are evi- dent. 6. If the engine is inoperable, hydraulic power for steering, braking and transmission lubrication will not be available. Install the necessary hydraulic connections between the tow vehicle and the disabled truck to provide hydraulic power. Refer to Disabled Truck Steering and Braking.
DO NOT exceed 2 kph (1 mph) when towing another truck. 7. If the body of the disabled truck contains a load, dump the load before towing. If the engine is not operational, refer to Disabled Truck Dumping. Smooth and gradual truck movement is essential during towing. Sudden movement may cause wire rope failure leading to injury and/or truck damage. Minimize the tow angle at all times - Never exceed 10° in any direction, vertically or horizontally. The towed truck must be steered in the direction of the wire rope. Consult your customer support manager for any questions or concerns about towing a disabled truck.