TM 552210-223-12
TO 45A2-2-14-41
Table 4-1. Unit Preventive Maintenance Checks and Service(Continued)
W -
Weekly
M -
Monthly
Q - Quarterly
INTERVAL
ITEM
ITEM
TO BE
NO. W
M
Q
INSPECTED
PROCEDURES
40
Cab Doors and
Check doors for breaks and damage. Check
Locks
locks for ease of operation. Check doors
for secure closing.
41
Electrical Equip-
Check doors for breaks and damage. Check
ment Cabinet
handles for ease of operation.
Doors
42
Switches,
a.
Check for proper operation of switches
Circuit
and circuit breakers.
Breakers, and
Fuses
b.
Check fuses for broken porcelain and
loose connections.
43
Electrical
Inspect for loose connections, contact
Relays and
burning, and charring of relay coil and
Contactors
insulation.
44
Hand Brake
Inspect for loose screws, nuts, or bolts.
Service hand brake in accordance with LO 55-
2210-223-12. Check for proper operation.
45
Emergency
Check emergency brake valve for proper
Brake Valve
operation and security of mounting. Test to
see that valve operates properly.
46
Cab Heaters
Check heaters for proper operation. Check
for loose or missing hardware.
47
Controller
a.
Check throttle for proper operation.
Mechanism
Move handle from IDLE to position 8
while listening for roller switches to
snap into each notch.
b.
Check reverser for proper operation.
48
Gages and
Check gages and instruments for proper
Instruments
operation.
4-9