4-43. HANDBRAKE (cont)
CLEANING AND INSPECTION
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 immediately.
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 metal parts with drycleaning solvent. Dry thoroughly with compressed air.
Clean chain snubber (5) with detergent and water.
Inspect parts for cracks, breaks, and damage.
Inspect the teeth on the pinion, ratchets, and chain drum for wear.
Inspect the springs for serviceability.
Position brake assembly (9) on cab wall and install three nuts (7) and lockwashers (8).
Feed a wire through the front bottom hole of housing, over chain drum, and out the rear bottom hole of the
housing. Attach the wire to chain (6) and pull chain over drum and out the front bottom hole. Slide chain
snubber (5) up chain. Position weight (4) on chain and install pin (3). Slide snubber down over weight.
Lubricate in accordance with LO 55-2210-224-12.
Position cover (2) and install screw (1).