TM 9-4940-568-34
3-116
3-34. THREE FUNCTION MANUAL CONTROL VALVE REPAIR (Continued)
(4) Remove plug (9), preformed packing
(10) and shuttle valve (11). Discard
preformed packing (10).
(5) Remove and discard backup ring (12)
and two preformed packings (13) from
shuttle valve (11).
(6) Remove plugs (14 and 15) and
preformed packings (16) from manifold
(6). Discard preformed packings (16).
b.
Cleaning/Inspection
(1) Clean all parts.
(2) Inspect all parts for scoring, pits, rust,
gouges, or damage.
(3) Inspect all other parts. Replace all parts
failing inspection.
c.
Assembly
NOTE
Lubricate all preformed packings
and backup ring with clean
hydraulic oil.
(1) Install two preformed packings (16) and
plugs (14 and 15) in manifold (6).
(2) Install two preformed packings (13) and
backup ring (12) on shuttle valve (11).
(3) Install shuttle valve (11), preformed
packing (10) and plug (9).
(4) Install nine preformed packings (8) on
left-hand outrigger valve (5), outrigger
extension valve (4) and right-hand
outrigger valve (3).
(5) Install three preformed packings (7) and
position left-hand outrigger valve (5),
outrigger extension valve (4) and
right-hand outrigger valve (3) on
manifold (6).
(6) Install three studs (2) through left-hand
outrigger valve (5), outrigger extension
valve (4) and right-hand outrigger valve
(3) with six nuts (1). Tighten six nuts (1)
to 11 lb-ft (15 N.m).
END OF TASK
Follow-On Maintenance
Install three function
manual control valve
(para 3-7).
1
2
1
1
7
8
5
3
6
4
