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
CHECK/
ITEM
MAN-
NOT FULLY MISSION
SERVICE
NO.
INTERVAL
HOURS
PROCEDURE
CAPABLE IF:
WARNING
40
After
Hitch Area
Hitch and steering movement can reduce clearances sud-
denly and cause injury. Always stop engine BEFORE work-
ing in area of hitch link.
Class III hydraulic fluid
a. Check under hitch for evidence of
hydraulic fluid leakage.
leaks are evident.
b. On both sides of hitch, check
Class III hydraulic fluid
hydraulic steering cylinders,
leaks are evident. Any
hydraulic hoses, lines and fittings,
breaks are noted in air lines
air lines and hoses and electrical
and hoses, or bare electrical
wires for damage or signs of leaking
wires. Loose or missing
and secure mounting.
mounting hardware is noted.
c. Visually check area for any obstruc-
tions between moving components
of hitch. Remove obstructions and
check for damage.
394-177
RIGHT SIDE
LEFT SIDE
Visually check differential assembly
Class III oil leaks are evi-
41
After
Drive Line
for signs of oil leakage.
dent.
0014 00-22
