4-6. ORGANIZATIONAL MAINTENANCE TROUBLESHOOTING - Continued
Table 4-2. Organizational Troubleshooting- Continued
TEST OR INSPECTION
IMMERSION HEATER ASSEMBLY - Continued
b. Clean burner with a stiff bristle brush to remove carbon, grit, rust and other
foreign matter from the holes of the burner plate.
c. Replace the burner in the heater body.
2. HEATER CONTINUES TO BURN WHEN FUEL VALVE IS OFF.
Step 1. Check for worn or leaking fuel valve.
Replace fuel valve. (Refer to Figure 4-2).
SECTION IV. ORGANIZATIONAL MAINTENANCE PROCEDURES
4-7. HEATER BODY
Refer to Figure 4-3. Remove two nuts (17), lockwashers (18), flat washers (19), and screws (20). Remove
hood (23) from the burner compartment.
If necessary, remove four rivets (21) and instruction plate (22 ) from hood.
Remove cotter pin (25) and igniter spring (26). Remove igniter (29).
Remove retainer spring (27) and wicking (28) from igniter.
If necessary, remove four rivets (30) and name plate (31) from heater body.
If necessary, remove hook bolts (32) and mounting clamp (33).
Clean dust and dirt off heater body. Include all the components of the heater body.
Remove rust and corrosion from the heater body and hanger assembly with a scouring pad (Item 5,
Appendix E) or with extra fine sandpaper.