OM3020.1 12/99 Operation - Section 3 Operating Instructions Page 3-5 4. The keyswitch is a three position (Off, Run, Start) switch. When switch is rotated one position clockwise, it is in the “Run” position and all electrical circuits (except “Start”) are activated. a. Turn keyswitch to “Run” (not “Start”) position. b. With Selector Switch in “ N eutral”, rotate keyswitch fully clockwise to “Start” position, and hold this position until engine starts. “Start” position is spring-loaded to return to “Run” when key is released. c. After engine has started, place REST switch in “Off” position (de-activate the “REST” mode of operation).
Refer to discussion of REST SWITCH (26, Figure 3-6), in “Instrument Panel & Indicator Switches” section. Cold Weather Starting Do not crank an electric starter for more than 30 seconds. Allow two minutes for cooling before attempting to start engine again. Severe damage to starter motor can result from overheating . AFTER ENGINE HAS STARTED 1. Become thoroughly familiar with steering and emergency controls. After engine has started and low pressure and warning systems are normal, test the truck steering in extreme right and left directions. If the steering system is not operating properly, shut engine down immediately.
Determine the steering system problem and have repairs made before resuming operation. 2. Operate each of the truck’s brake circuits at least twice prior to operating and moving the truck. These circuits include individual activation from the operator’s cab of the service brake, parking brake, and brake lock. With the engine running and with the hydraulic circuit fully charged, activate each circuit individually. If any application or release of any brake circuit appears sluggish or improper, or if warning alarms are activated on application or release, shut the engine down and notify maintenance personnel. Do not operate truck until brake circuit in question is fully operational. 3.
Check gauges, warning lights and instruments before moving the truck to insure proper system operation and proper instrument functioning. Give special attention to braking and steering circuit hydraulic warning lights. If warning lights come on, shut down the engine immediately and determine the cause. 4. Insure headlights, worklights and taillights are in proper working order. Good visibility may prevent an accident. Check operation of windshield wiper. 5. When truck body is in dump position, do not allow anyone beneath it unless body-up retaining pin or cable is in place. 6. Do not use the fire extinguisher for any purpose other than putting out a fire!
If extinguisher is discharged, report the occurrence so the used unit can be refilled or replaced. 7. Do not allow unauthorized personnel to ride in the truck. Do not allow anyone to ride on the ladder of the truck. 8. Do not leave truck unattended while engine is running. Shut down engine and apply park brake before getting out of cab.