Proheat M80 - Manual (Page 38)

PROHEAT G-I PCM SERVICE MANUAL 4-7
• Re-clamp the Fuel Nozzle stem lightly but firmly in a vise using soft
jaws, take care not to cause damage. Reinstall the distributor and
Fuel Nozzle head. Ensure that the distributor is seated correctly.
The Fuel Nozzle assembly is self-aligning.
f) Inspect the Fuel Nozzle cavity and clean as necessary using electrical
contact cleaner cleaner or warm soapy water.
g) Reinstall the Fuel Nozzle using diesel fuel to lubricate O-ring.
h) Reinstall the burner head by mounting it against the heat exchanger face,
turning clockwise to engage the mounting ears on the bolts.
i) Tighten mounting bolts. See Section 1.3 for torque.
j) Reconnect the electrical harnesses and fuel supply line.
k) Switch the PROHEAT on and operate for at least one complete cycle.
Observe the operation.
If a Start diagnostic code is indicated, proceed to Step 4.
Figure 4-6: Fuel Nozzle Assembly
FUEL NOZZLE ORIFICE
AIR PASSAGES
AIR PASSAGES
FUEL AND AIR OUTLET ORIFICE
HEAD
DISTRIBUTOR
STEM
O-RING
NOZZLE NUMBER
M80 NOZZLE SHOWN
TORQUE = SEE
SECTION 1.3
LUBRICATE
O-RING WITH
DIESEL FUEL
HOLD UPRIGHT
TO ASSEMBLE
NOTICE
All plugs/harnesses must be rein-
stalled into the Proheat Control
Module (G-I PCM) before heater goes
back into service.
ARROWS
SHOW HOW TO
LOOSEN THE
NOZZLE