TM 5-2420-230-24-1
Table 3-1. Unit Level Preventive Maintenance Checks and Services (PMCS) for IHMEE. -- Continued
Item to be
Checked or
Not Fully Mission
Item
No.
Interval
Serviced
Procedure
Capable If:
7
Semiannual
Hydraulic System --
a. Follow routing of all hydraulic lines,
Any loose fittings,
Continued
hoses, and tubes to inspect for loose
excessive wear from
fittings, rubbing, chafing, cracks, bends,
rubbing, chafing. Cracks,
breaks, and leaks. Tighten if loose, and
bends, breaks, and any
replace or repair hoses or lines that are
evidence of leaks.
damaged (Para 10-14).
b. Service FEL and backhoe valve blocks
8
Semiannual
Engine Compartment
NOTE
Small particles in engine oil are common;
however, large metal particles indicate
possible damage.
Oil and filter will be changed only when
they are known to be contaminated,
clogged, or when service is recommended
by AOAP laboratory (Para 3-8 and
If AOAP laboratory support is not
available, change oil and oil filter at
3,000 mi. (4 800 km) or every 6 months.
Frays, leaks, cracks or
a. Check all oil lines and hoses for frays,
wear are evident.
leaks, cracks, and wear that could leak.
b. Check oil filter housing and oil pan drain Drain plugs or oil pan bolts
plug for looseness. Ensure all oil pan bolts are loose.
are tight.
c. Check valve cover housing for evidence of Class III leaks are evident.
leaks.
Frays, splits, missing
d. Check all engine compartment wiring
insulation or poor
harnesses for frays, splits, missing
connections are evident.
insulation, or poor connections. Replace
any worn wiring.
e. Inspect alternator mounting for looseness. Cracked, bent, or loose
Inspect bracket and attaching hardware for mounting are evident.
cracks, bends, and loose mounting.
Change 1
3-9
