Master Lock BH150CE owner manual Pump Pressure Adjustment, Nozzle

Pump Pressure

Adjustment

1.Remove pressure gauge plug from filter end cover.

2.Install accessory pressure gauge (part number HA1180).

3.Start heater (see Operation, page 7). Allow motor to reach full speed.

4.Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. Set pump pressure at 4.9 psi.

5.Remove pressure gauge. Replace pressure gauge plug in filter end cover.

Nozzle

1.Remove upper shell (see page 10).

2.Remove fan (see page 14).

3.Remove spark plug wire from spark plug.

4.Remove spark plug from burner head using 13/16" open-end wrench.

5.Loosen flare nut using 3/4" open-end wrench. Push fuel tube down.

6.Remove air line hose from burner head.

7.Remove three screws using 5/16" nut-driver and remove burner head from combustion chamber.

8.Place burner head into vise and lightly tighten.

9.Carefully remove nozzle from burner head using 5/8" socket wrench (see Figure 13).

10.Blow compressed air thru face of nozzle. This will free any dirt in nozzle area.

11.Inspect nozzle seal for damage.

12

Relief

Valve

Pressure

Gauge

Plug

150 PRESSURE ADJUSTMENT Plug PF

Figure 10 - Pressure Gauge Plug Removal

Pressure

Gauge

150 PRESSURE ADJUSTMENTPF

Figure 11 - Adjusting Pump Pressure

Combustion

Chamber

Burner Head

Screw

Air Line Hose

Flare Nut

Fuel Tube

Figure 12 - Removing Burner Head

Spark Plug Wire

Spark

Plug

101487