Proheat M80 - Page 29

PROHEAT M-SERIES SERVICE MANUAL
3-13
Air Compressor filter check:
a) Remove blower housing (2) screws and blower housing.
b) Remove the Air Compressor filter. Inspect for contamination and replace
if necessary.
Air Compressor removal and reinstallation:
a) Disconnect Motor, Fuel Shut-off Valve and Ignition Module connectors at
the PCM.
b) Remove blower housing (2) screws and blower housing.
c)
Remove blower retaining snap ring and slide the blower off the Motor shaft.
d) Remove the PCM.
e) Remove Motor (4) screws and slide the Motor shaft out of the Fuel
Supply Pump taking care not to damage the Fuel Supply Pump seal.
Note the Motor drive gear size and location for reassembly.
f) Remove the Air Compressor gear retaining snap ring and gear. Inspect
gears and replace if necessary. If gears are worn out it is not necessary
to replace compressor (spin and check for mechanical interference).
g) Remove Air Compressor (2) screws, Air Compressor, (2) O-rings and the
gear locating snap ring from the Air Compressor shaft.
h) Install new Air Compressor; ensure that the O-ring and seats are clean
and dry. Assembly lubricant not required.
i) Reinstall gear locating snap ring, gear and gear retaining ring.
j) Reinstall the Motor, with drive gear, take care to ensure that the Fuel
Pump seal is not damaged.
k) Reinstall the PCM, blower, blower retaining snap ring, Air Compressor
filter and blower housing.
l) Reconnect the Motor, Fuel Shut-off Valve and Ignition Module connectors
at the PCM.
m) Test the Air Compressor. Adjust if necessary to correct pressure setting.
Go to items 'i', 'j' and 'k' in Test Procedure – Air Compressor pressure,
page 3-12.
Figure 3-14: Burner Head and Blower Housing Removal
MOUNTING BOLTS (2) TORQUE = 100 in-lbs
COOLANT PUMP
SWITCH INPUT
TEMP SENSOR 1
POWER
FUEL INLET
AIR FILTER
HOUSING SCREWS
TORQUE = 75 in-lbs