3-63. TRUCK 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 immediately and get medical aid. 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.
General cleanness of trucks should be maintained to eliminate fire hazard and reduce wear. Trucks
can be cleaned while under locomotive. If forced spray is used, do not direct spray toward traction
Use drycleaning solvent and clean parts. Dry with compressed air.
Inspect pedestal liners for cracks and excessive wear. Total nominal pedestal liner clearance is 1/8 inch (3.175
mm). Maximum clearance is 3/8 inch (9.525 mm). Total nominal lateral clearance is 1/8 inch (3.175 mm).
Maximum clearance is 3/8 inch (9.525 mm).
Inspect side bearing clearance. Normal side bearing clearance is 1/4 inch (6.35 mm). Nominal side bearing
wear plate thickness is 1/4 inch (6.35 mm) and minimum is 1/8 inch (3.175 mm).
Inspect center casting and wear plate for excessive wear. Nominal wear plate thickness is 3/8 inch (9.525 mm)
and minimum is 1/4 inch (6.35 mm).
Inspect brake rods, levers, pins, and other rigging for wear, cracks, and breaks. Replace defective parts.
Inspect springs and suspension bars for cracks, breaks, and oth
er damage. Replace defective parts.