Master Lock 70000 BTU/Hr - Manual (Page 10)

10
101585
SERVICE
PROCEDURES
Upper Shell Removal
1. Remove screws 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.
Figure 10 - Fuel Filter Removal, 70,000 BTU/Hr Model
Fuel Filter
Side Cover
Fuel Line
Fuel Filter
(70,000 BTU/Hr Model)
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 replace in tank.
6. Attach rubber fuel line to
fuel filter neck.
7. Replace side cover.
Upper
Shell
Fan
Guard
Upper
Shell
Fan
Guard
Figure 8 - Upper Shell Removal, 70,000 BTU/Hr Model
WARNING
Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
Figure 9 - Upper Shell Removal, 100/150,000 BTU/Hr Models