TM 5-3740-218-13&P
4-10.
PMCS TABLE
Table 4-1. Unit Level PMCS (Cont)
NOTE: Within designated interval, these checks are to be performed in the order listed.
M-Monthly
S-Semiannually
A-Annually
ITEM
INTERVAL
ITEM TO BE
NO.
INSPECTED
PROCEDURE
MS
A
12
Spark Plug
Remove spark plug and check insulator for cracks
or chips. Replace as necessary (para 4-25).
Check center electrode for square edges and side
electrode for erosion. Replace as necessary
Check electrode gap to be within 0.039-0.043 in.
Adjust gap as required.
Check sealing washer for damage. Replace plug as
required (para 4-25).
13
Oil Fill and Drain
Check oil level switch when engine oil is changed.
Assembly
With engine running, disconnect yellow and green
leads from oil level switch.
Connect leads from key switchbox together.
Engine oil level light should flash and engine
should stop.
With engine stopped, disconnect key switchbox
leads and check continuity between oil switch
yellow and green leads. There should be no
continuity.
With leads disconnected, drain oil and check
continuity between oil switch yellow and green
leads. There should be continuity.
Refill crankcase with SAE 10W-40 oil (item 40,
If oil level switch is defective, replace engine
14
Pump and
Check crosstube-to-bucket mating flange bolts for
Crosstube Assembly
tightness. Tighten as required.
Check crosstube for obvious external damage.
Replace as required (para 4-39).
Check hydraulic motor mounting bolts for security.
Tighten as required.
Check dispersal pump mounting bolts for security.
Tighten as required.
Check spray system control unit for Class III leaks
and security in mounting. Replace (para 4-45) or
tighten as required.
Check all hydraulic fittings for Class III leaks and
hoses for exterior damage. Repair leaks and
replace hoses as required.