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 TM 5-1940-277-20
TM 1940-20/2
Table 2-1. Unit Preventive Maintenance Checks and Services (cont)
W-Weekly
Q-Quarterly
S-Semiannually
Item to be inspected
Interval
Procedure: Check for and have repaired, filed,
Item
or adjusted as needed
No.
S Item
Perform all operator PMCS first
WQ
9
DRIVE LINE ASSEMBLIES
a.
Drive lines (1). Remove aft cockpit 92) and check drive lines for loose or worn
U-joints (3). Check that U-joint mounting bolts are tight and not missing.
b.
Drive shaft collar and support (4). Check that bolts are tight and that bolts
and spacers are not missing.
10
HYDROJET AND STEERING ASSEMBLIES
WARNING
Do not operate engines while inspecting hydrojet
assemblies. Failure to heed this warning may result in
injury.
a.
Hydrojet assemblies (1). Loosen inspection cover wingnuts (2) and remove the
cover (3). Rotate impeller drive shaft and check if impeller blades or shaft is
bent, cracked, or broken. Remove debris. Install inspection cover and gasket,
tighten wingnuts, and check for leaks.
2-12
Change 2
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