Master Lock BH150CE - Manual (Page 10)

10
101487
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.
WARNING
Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur.
Fuel Filter
1. Remove upper shell (see
page 10).
2. Remove fan (see page 14).
3. Loosen flare nut using 3/4"
open-end wrench. Push fuel
tube down, away from
burner head. Fuel filter is
located inside of fuel tube.
4. Lift out fuel filter.
5. Wash fuel filter with clean
fuel and replace in fuel
tube.
6. Connect fuel tube to burner
head. Attach flare nut until
nut seats against fuel tube
and fitting. Tighten 1/4 turn
more using 3/4" open-end
wrench (11.3-14.7 n-m/
100-130 inch-pounds).
7. Replace fan (see page 14).
8. Replace fan guard and
upper shell.
Upper
Shell
Fan Guard
Figure 5 - Upper Shell Removal
Burner
Head
Combustion
Chamber
Fuel Filter
Fuel Tube
Flare Nut
Figure 6 - Fuel Filter Removal