PM
Check the operation of the INDICATOR LIGHTS in the instrument panel. Turn key switch all the way to the right ("TEST" position). The lights should al 1 illuminate with the key switch in the "TEST" position. Drive Motor *ABrush Wear Indicator B - Control Temperature Pump Motor *cBrush Wear Indicator D - Control Temperature * Brush wear indicator lights are optional equipment.
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A
B
r
1tfil
pq
pq
c
D 1
.1irf? p@j
ppq
Fig. 22173
Check HORN operation. The horn should operate at all times that a properly charged battery is connected at the truck receptacle. If horn does not operate, or if a rubbing noise or squeaking is heard when turning steering handwheel, adjustment of the clearance between handwheel hub and shift quadrant may be required. Refer to GROUP 06, Section 2 for horn and steering wheel adjustment. Check PUMP MOTOR SPEED operation: With key switch still on, move the tilt lever in either "FORWARD" tilt or "BACK" tilt position. Pump motor will sound slightly different in "FORWARD" tilt than in "BACK" tilt.
Fig. 22161 Move the lift lever to the "RAISE" position. You should be able to hear a definite increase in pump motor speed.
Fig. 22159
PM-510, REV FEB 84
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