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