TM 5-5420-280-23&P
0094 00
LAUNCH BOOM SWIVEL DRIVE REPLACEMENT (Contd)
INSTALLATION
NOTE
Apply a light coat of grease to bearing shaft and swivel drive shaft
at installation.
The pallet hydraulic system is self-bleeding, and with the exception
of the telescopic tube hydraulic cylinders, there is no requirement
for bleeding air from the system.
1.
Install new O-ring (24), reducer (25), new O-ring (29), adapter (28), and elbow (27) on swivel
drive (8).
2.
Install new O-ring (17), adapter (16), tee fitting (15), and elbow (13) on swivel drive (8).
3.
Install new O-ring (9), adapter (10), and elbow (11) on swivel drive (8).
4.
Install new O-ring (6), adapter (5), and elbow (4) on swivel drive (8).
5.
Apply air pressure to ports at either end of swivel drive (8) to rotate swivel drive shaft (30) to
position noted at removal.
6.
Attach sling or chain and lifting device on swivel drive (8).
7.
Install swivel drive shaft (30) on bearing shaft (32) and swivel drive (8) on pallet frame (1).
8.
Install bracket (23) on standoff bracket (31) with washer (22), new lockwasher (21), and screw (20).
9.
Install four screws (7), washers (18), and new locknuts (19) on bracket (23) and swivel drive (8).
10.
Remove sling or chain and lifting device from swivel drive (8).
11.
Connect hoses (26) and (12) to elbows (27) and (11) on swivel drive (8).
12.
Connect steel tubes (14) and (3) with new tube seals (2) to tee fitting (15) and elbows (13) and (4).
13.
Start LPU or CBT, depress KY1 and KY18 control valves simultaneously to raise launch boom to
+90-degrees position. Release control valves and shut down LPU and install launch boom
retaining pins.
0094 00-4