3-42. TIMER MAINTENANCE- continued.
Drycleaning solvent P-D-680 is highly toxic and can ignite organic materials,
nitrates, carbides, and chlorates. Wear eye, skin, and respiratory protection Use
in a well-ventilated area
Using a soft-bristled brush and drycleaning solvent, clean electric connector, cover mounting hardware, and
Using dry cloth, clean box gasket.
Inspect terminal strip, and stager for breaks, overheating, and terminal damage
Inspect printed circuit board for cracks, breaks, overheating, and circuitry damage
Inspect gasket for cracks, damage, and excessive wear
Inspect all pipe fittings for stripped or damaged threads.
Inspect timer box and cover for damage.
Replace all damaged components
Position stager (9) in place and install four screws (14) Connect six wires (15) as tagged. Remove tags.
Position terminal board (8) in place and install two screws (7).
Position cable assembly (6) in backwash timer (3) and install nut (5).
Connect five wires (4) as tagged Remove tags.
Position latches (17) in place and install four screws (1) and locknuts (2). Close cover.