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TM 9-2320-366-20-1
Table 2-1. Preventive Maintenance Checks and Services (Cont)
Location
Item
Interval
Item to be
Procedure
Not Fully
No.
Checked or
Mission
Serviced
Capable If:
Semiannual
Inspect work platform for corrosion, damage, and
59
WORK
cracks. Check security of platform mounting
PLATFORM
hardware.
(M1089)
Semiannual
60
CROSSBAR
a.
Inspect crossbar thrust bearing for cracks
a. Cracks or
(M1089)
and grooves.
grooves are
evident.
b.
Inspect crossbar thrust bearing clearance
b. More than
between crossbar and thrust bearing
0.040 in. (0.101
maximum clearance 0.040 in. (0.101 cm).
cm) clearance is
evident.
2-58
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