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104468
PORTABLE FORCED AIR HEATERS
R
Figure 9 - Fuel Filter Removal, 35/70,000 Btu/Hr Models
Fuel Filter
Side Cover
Fuel Line
Fuel Filter, Bushing, and
Lower Fuel Line
Side Cover
Upper
Fuel
Line
Figure 10 - Fuel Filter Removal, 100/150,000 Btu/Hr Models
SERVICE
PROCEDURES
Upper Shell Removal
1. Remove screws and lock washers along
each side of heater using 5/16" nut-
driver. These screws attach upper and
lower shells together.
2. Lift upper shell off.
3. Remove fan guard.
Fuel Filter
(35/70,000 Btu/Hr Models)
1. Remove side cover screws using 5/16"
nut-driver.
2. Remove side cover.
3. Pull rubber fuel line off fuel filter neck.
4. Carefully pry bushing and fuel filter out
of fuel tank.
5. Wash fuel filter with clean fuel and re-
place in tank.
6. Attach rubber fuel line to fuel filter
neck.
7. Replace side cover.
Fuel Filter
(100/150,000 Btu/Hr Models)
1. Remove side cover screws using 5/16"
nut-driver.
2. Remove side cover.
3. Pull upper fuel line off fuel filter neck.
4. Carefully pry bushing, lower fuel line,
and fuel filter out of fuel tank.
5. Wash fuel filter with clean fuel and re-
place in tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover.
WARNING: Never service
heater while it is plugged in, op-
erating, or hot. Severe burns and
electrical shock can occur.
Upper Shell
Fan Guard
Fan
Guard
Upper
Shell
Figure 7 - Upper Shell Removal, 35/70,000
Btu/Hr Models
Figure 8 - Upper Shell Removal, 100/
150,000 Btu/Hr Models