TM 5-5420-280-23&P
0095 00
LAUNCH BOOM REPLACEMENT (Contd)
REMOVAL
WARNING
Lower support boom and launch boom are extremely heavy and
must be supported during removal and installation. Failure to
comply may result in injury or death to personnel.
CAUTION
Cap or plug all hoses, connections, and openings immediately after
disconnection to prevent contamination. Remove caps or plugs prior
to installation. Failure to do so may result in damage to equipment.
NOTE
Tag hoses for installation.
Have container ready to catch oil.
1.
Place dunnage under lower support boom (3) and attach lifting device and sling or chain to launch
boom (10).
2.
Remove four fittings (8) and O-rings (9) from bearing shaft (1). Discard O-rings (9).
3.
Remove two screws (7), retaining plate (6), and straight pin (5) from launch boom (10) and bearing
shaft (1).
NOTE
It will be necessary to remove bearing shaft using suitable pulling
device.
4.
Take up slack on lifting device and pull bearing shaft (1) out of lower support boom (3), launch
boom (10), and pallet (2) and remove launch boom (10) from lower support boom (3) and pallet (2)
and place on ground.
5.
Remove chain or sling and lifting device from launch boom (10).
6.
If damaged, remove two bushings (4) from launch boom (10).
INSTALLATION
NOTE
Apply a light coat of grease to all bushings, O-rings, and bearing
shaft at installation.
1.
If removed, install two bushings (4) on launch boom (10).
2.
Install lifting device and chain or sling on launch boom (10).
3.
Lift launch boom (10) and position launch boom (10) on pallet (2), aligning launch boom (10), lower
support boom (3), and pallet (2).
NOTE
Holes for fittings and straight pin must be aligned with openings
on bottom of launch boom at installation.
4.
Slide bearing shaft (1) through pallet (2), lower support boom (3), launch boom (10).
5.
Install straight pin (5) on launch boom (10) and bearing shaft (1) with retainer plate (6), and two
screws (7).
6.
Install four new O-rings (9) and fittings (8) on bearing shaft (1).
7.
Remove dunnage from lower support boom (3).
8.
Install upper roller block assemblies. Refer to WP 0090 00.
9.
Install launch boom rope guide roller. Refer to WP 0091 00.
10.
Install bearing shaft manifold. Refer to WP 0092 00.
11.
Install lower support roller assembly. Refer to WP 0088 00.
12.
Install launch boom swivel drive. Refer to WP 0094 00.
13.
Install hydraulic lines. Refer to WP 0071 00.
0095 00-2
