4-20. SAFETY WARNING BELL ASSEMBLY (cont)
CLEANING, INSPECTION, AND REPAIR
Drycleaning solvent P-D-680 is toxic and
flammable. Wear protective goggles and gloves
and use only in a well-ventilated area. Avoid
contact with skin, eyes, and clothes and don't
breathe vapors. Do not use near open flame or
excessive heat. The flash point is 100 - 138°F
(38 - 59°C). If you become dizzy, get fresh air
and medical aid immediately. If contact with
eyes is made, wash your eyes and get medical aid
Compressed air used for cleaning purposes will
not exceed 30 psi (207 kPa). Do not direct
compressed air against skin. Use goggles or
full face shield.
Clean parts with drycleaning solvent and dry with compressed air.
Inspect parts for cracks, breaks, and damage.
Repair consists of replacement of damaged parts. Lubricate in accordance with LO 55-
Place motor (14) in motor housing (15) and install on clevis (13).Tighten setscrew (12) and
Position clapper (10) in clevis (13) and install pin (9) and cotter pin (8). Place bell (7) on
motor housing (15).
Position bell assembly (5) in mounting bracket (6) and install flat washer (4) and nut (3).
Apply antiseize tape to threads on male half union (2).Connect male half union to motor
housing (15) and connect air line fitting (1) to male half union.
Start locomotive (para 2-10 and 2-11).After air pressure buildup, check safety warning bell
assembly for proper operation.