POWER PLANT HEATER REMOVAL, REPAIR, AND REPLACEMENT - continued

TM 9-2320-209-34-2-3

(4) Flame detector switch.

FRAME 1

WARNING

Dry cleaning solvent is flammable. Do not use near an

open flame. Keep a fire extinguisher nearby when sol-

vent is used. Use only in well-ventilated places. Fail-

ure to do this may result in injury to personnel and

damage to equipment.

1. Wipe flame detector switch (1) with cloth dipped in dry cleaning solvent. Do

not dip switch into solvent because it may be damaged. Wipe flame detector

switch dry.

2. Unscrew and take out adjusting screw and washer (2). Loosen two

screws (3).

Flip up microswitch (4) and take off bar spring (5).

CAUTION

Do not let quartz rod (6) fall out of flame detector

switch. Do not drop quartz rod. Doing so may break

or chip quartz rod.

Turn flame detector switch (1) over and let quartz rod (6) slide out of tube

(7). Tap bottom of tube (7) to get out any broken pieces of quartz rod.

GO TO FRAME 2

21-35