TM 5-3805-248-10
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - CONTINUED
0014 00
Table 1. Preventive Maintenance Checks and services (PMCS) for 621B Scraper - Continued.
LOCATION
ITEM TO
ITEM
MAN-
CHECK/
NOT FULLY MISSION
NO.
INTERVAL
HOURS
SERVICE
PROCEDURE
CAPABLE IF:
a. Visually check tire for cuts or
Tire has cuts or bulges in
46
After
Left Rear
Wheel and
bulges in tread or sidewall area.
tread or sidewall area or
Tire
Check for uneven wear or underin-
other damage that would
flation. Look for foreign material
impair operation.
embedded in tread or sidewall area.
Remove foreign material if found.
Missing wheel hub cap bolts
b. Check for loose or missing wheel
or damaged valve stem are
hub cap bolts and valve stem with
noted.
cap.
REAR AND
RIGHT
SIDE
Overall View a. Check under rear of scraper for evi- Damage or leaks in air brake
47
After
system that would impair
dence of leakage or damage to air
operation is evident.
tank, lines or hoses.
Damage that would impair
b. Check rear of scraper for obvious
operation is evident.
damage that would impair opera-
tion.
c. Check for damaged or missing rear
service light assemblies.
d. Check operation of all lights on rear
of machine.
0014 00-25
