Komatsu 830E-AC Shop Manual page 812

Installation
1. Install new heating element.
a. Cover the new heating element threads with
an anti-seize thread compound.
b. Screw heating element into cartridge and
tighten securely to insure against leaks.
2. Connect the electrical leads.
3. Slide element cover into position and secure
with screws.
4. Open shut-off valves.
5. Plug in the external power source. After allow-
ing time for the element to warm up, outlet
hoses should feel warm to the touch.
6. Check for leaks and proper coolant level.
THERMOSTAT
Removal
1. Disconnect the external power source at the
plug in receptacle.
NOTE: It is not necessary to remove the thermostat
assembly from the heater.
2. Remove the two screws and slide cover out of
the way.
3. Disconnect the two electrical leads.
4. Loosen the two setscrews and remove the tem-
perature sensing unit.
Installation
1. Install a new temperature sensing unit and
secure in place with two setscrews.
2. Connect the electrical leads.
3. Move cover into position and secure in place
with screws.
4. Plug in the external power source.
After allowing time for the element to warm up, outlet
hoses should feel warm to the touch.
M7-4
FIGURE 7-2. THERMOSTAT ASSEMBLY
1. Cover
2. Temperature
Sensing Unit
Engine Coolant Heater
3. Housing
4. Setscrew
M07012