3-58. BRAKE CYLINDER (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 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.
Use dry-cleaning solvent and remove dirt and grease from metal parts. Dry with compressed air.
Inspect metal parts for cracks and breaks. Replace damaged parts.
Inspect rubber parts for cracks, breaks, or flattened beads. Replace damaged rubber parts.
Use brake cylinder lubricant and coat push rod (12), packing cup (17), and walls of cylinder.
Beveled side of felt wiper should be facing piston assembly. Be sure that packing cup (17) is free of air bubbles.
Install felt wiper (18) and packing cup (17) on piston (16). Install gasket (19) on cylinder (13).
Before installation of piston assembly (16), be sure that packing is greased and that cylinders are coated with
When strainer cylinder head is installed, be sure strainer is at bottom.
Install piston assembly (16) into cylinder (13). Secure with four bolts (15) and nuts (14).