Operation - Section 3 02/99 OM3013 Page 3-12 Operating Instructions SAFE PARKING PROCEDURES The operator must continue the use of safety precau- tions when preparing for parking and engine shut- down. TOWING Prior to towing a truck, many factors must be care- fully considered. Serious personal injury and/or sig- nificant property damage may result if important safety practices, procedures and preparation for moving heavy equipment are not observed. In the event that the equipment is being worked in consecutive shifts, any questionable truck perfor- mance the operator may have noticed must be checked by maintenance personnel before the truck is released to another operator. 1.
The truck should be parked on level ground, if at all possible. If parking must be done on a grade, the truck should be positioned at right angles to the grade. 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 instructions. Extensive secondary damage can occur to final drive components and/or trans- mission, if truck is towed without first removing sun gears/drive axles. 2. The parking brake must be applied and/or chocks placed fore/aft of wheels so that the truck cannot roll. Each truck should be parked at a reasonable distance from another. 3. Haul roads are not safe parking areas.
In an emergency, pick the safest spot most visible to other machines in the area. If the truck becomes disabled where traffic is heavy, mark the truck with warning flags in daylight or with flares at night. SHUTDOWN PROCEDURE The following sequence of shutdown procedure is important and should be followed at each shutdown. The truck must not be towed except in emergen- cies. 1. Stop truck, reduce engine RPM to low idle. Place Transmission Range Selector in "Neutral" and apply parking brake. When towing becomes necessary, use the tow hook installed under the front frame and take the following precautions: 2. Allow engine to cool gradually by running at low idle for 3 to 5 minutes. 1.
Block disabled truck to prevent movement while attaching tow bar. 3. Turn keyswitch "Off" to stop engine. 2. If the engine is operable; keep the engine run- ning while towing the machine, so that the steering and braking can be used. 4. Close and lock all windows, remove key from key switch and lock cab to prevent possible unauthorized truck operation. Dismount truck properly. If there is a failure in the air circuit, the brakes cannot be used, so be extremely careful when towing. When air pressure in air reservoir abnormally drops due to leakage from air cir- cuit, parking brake and emergency brake are actuated. When towing truck, both brakes must be released.
Refer to "BRAKE RELEASE" fol- lowing these" TOWING" instructions. If the engine is NOT operable, it is possible to steer using the emergency steering: Do not use it for more than 90 seconds. Travel at a speed of less than 5 km/h (3 mph).