Service Manual Manual
Section 10. Electrical System
10-56
Model 6036/6036T S/N 9B0500 thru 14833
5. Replace coolant in engine and heater lines,
connect the ground cable (2, Fig. 10.16) to the
negative terminals of the batteries, start the
engine, allow engine to idle for several min-
utes, and check for leakage at the heater
connections.
6. Disconnect battery ground cable (2, Fig.
10.16) from the negative terminals of the
batteries.
7. Connect wiring to motor.
8. Prepare to electrically ground the heater unit
by positioning tooth type ground washers (3,
Fig 10.42) over the tapped holes in the coolant
inlet/outlet side of the heater. Use a thin,
transparent tape to temporarily secure the
washers to the heater unit.
9. Slide heater and fan unit (7) into position
under suspension support (12) without disturb-
ing the ground washers (3) which were taped
into position during the previous step.
10. Install two lock washers (5), capscrews (4)
and spacers (6) at the other side of the
suspension support (12).
11. Install two lock washers (2) and capscrews (1)
through the holes in the suspension support
(12) and through the tooth type grounding
washers (3) into the tapped holes in the
heater.
12. Connect negative (–) cable (2, Fig. 10.16) to
the batteries.
13. Test heater fan motor operation.
10.14 TROUBLESHOOTING
CONTENTS
Title Page
WARNING DEVICES 10-57
Horn, Backup Alarm, Reverse Switch and
Warning Lights 10-57
CIRCUIT BREAKERS/FUSES 10-58
STARTING SYSTEM 10-59
Starter, Starting Motor Relay and
Thermo Start Plug 10-59
CHARGING SYSTEM 10-62
Alternator and Batteries 10-62
SWITCHES AND SOLENOIDS 10-63
Ignition and Neutral Start Switches 10-63
Fuel Run Solenoid 10-64
Park Lock Switch 10-64
Reverse Switch and Backup Alarm 10-65
Steering Select Switch and Solenoid 10-65
GAUGES AND INDICATOR LIGHTS 10-65
Hourmeter 10-65
Warning Lights 10-66
Engine Low Oil Pressure Switch 10-66
Engine Coolant High Temperature Switch 10-67
Alternator Warning Light 10-67
Transmission High Oil Temperature Switch 10-67
Fuel Level Gauge 10-68
OPTIONAL LIGHT CIRCUIT 10-68
Directional and Emergency Flasher Switch 10-68
Momentary Brake Light and Switch 10-69
Headlight and Rear Work Light Switch 10-69
WINDSHIELD WASHER/WIPER 10-70
AIR CIRCULATION FAN 10-73
CAB HEATER 10-73