Operation - Section 30 OM3070 Page 30-8 Operating Instructions 7. Shut the engine off by using the engine stop button located on the center console. Leave the key switch in the ON position. This allows the steering accumulators to retain their hydraulic charge. MACHINE OPERATION SAFETY PRECAUTIONS After the truck engine is started and all the systems are functioning properly, the operator must follow all the local safety rules to ensure safe machine operation. q If the warning light and buzzer do activate, turn the key switch OFF and notify maintenance personnel. DO NOT operate the truck until the problem is corrected.
q If the steering accumulators are adequately charged, the low steering pressure warning light and the low accumulator precharge warning light will not illuminate. Continue to the next step. If any of the red warning lights come on, or if any gauge reads in the red area during truck opera- tion, a malfunction is indicated. Stop the truck as soon as safety permits, shut the engine off, and have the problem corrected before resuming truck operation. 8. Turn the steering wheel from stop to stop. The front wheels must turn fully to the left and to the right. Eventually, the low steering pressure warning light will illuminate and the warning buzzer will sound. This is normal.
If the front wheels cannot be turned fully to the left and right, or if the warning light and buzzer do not activate, immediately notify maintenance personnel. DO NOT operate the truck until the problem is corrected. Operating the truck with stalled or free spinning wheel motors may cause serious damage to the wheel motors! If the truck does not begin to move within 10 seconds after depressing the throttle pedal (selector switch in a drive position), release the throttle pedal. Allow the wheels to regain trac- tion before accelerating the engine again. If the truck passes this test, the emergency steering system is functioning properly. 1. Look to the rear before backing the truck.
Watch for and obey the ground spotter's hand signals before reversing. Sound the warning horn three times. The spotter must have a clear view of the total area at the rear of the truck. Additional Guidelines 1. When the truck body is raised, DO NOT allow anyone below it unless the body-up retaining cable is in place. 2. DO NOT use the fire extinguisher for any pur- pose other than putting out a fire! If an extin- guisher is discharged, report the occurrence so the used unit can be refilled or replaced. 2. Operate the truck only while properly seated with the seat belt fastened. Keep hands and feet inside the cab compartment while the truck is in operation. 3.
Check the gauges and instruments frequently during operation for proper readings. 3. DO NOT allow unauthorized personnel to ride in the truck. DO NOT allow anyone to ride on the ladder or outside of the truck cab. Passen- gers must be belted into the passenger seat during travel. 4. Observe all regulations pertaining to the job site's traffic pattern. Be alert to any unusual traf- fic pattern. Obey the spotter's signals. 5. Match the truck speed to the haul road condi- tions. Slow the truck in congested areas. Keep a firm grip on the steering wheel at all times. DO NOT leave the truck unattended while the engine is running.
Move the directional control lever to PARK, then shut the engine off before getting out of the cab. 6. DO NOT allow the engine to idle for extended periods of time. 7. Check the parking brake periodically during the shift while the truck is stopped. Use the parking brake only for parking. DO NOT use the parking brake for loading/dumping.