Master Lock 70000 BTU/Hr, 150000 BTU/Hr Service Procedures, Upper Shell Removal, Fuel Filter

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.

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.

10

WARNING

Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

Upper

Shell

Fan

Guard

Figure 8 - Upper Shell Removal, 70,000 BTU/Hr Model

Upper

Shell

Fan

Guard

Figure 9 - Upper Shell Removal, 100/150,000 BTU/Hr Models

Fuel Filter

Side Cover

Fuel Line

Figure 10 - Fuel Filter Removal, 70,000 BTU/Hr Model

101585