Table 3-2. Operator/Crew Preventive Maintenance Checks and Services (PMCS) CONT.
B - Before
D - During
A - After
w - Weekly
M - Monthly
BRAKE DRUMS AND HUBS
A defect in the operation of the
brake or hub can cause these
parts to get hot enough to cause
serious burns. Use extreme cau-
tion when attempting to detect
heat in this area.
Feel drums and hubs for overheating to
detect dragging or binding.
Open draincock (32) to drain moisture
from air reservoir (33) and close when
With trailer hooked to towing vehicle,
set handbrakes (34). Move trailer
slightlyt to see if handbrakes hold
wheels. Adjust as required.
Brakes or hub are
dragging or binding.
Handbrakes cannot be