TM 9-2330-381-14
5.
Tag and disconnect hydraulic tubes (12 and 13) from straight pipe-to-tube adapter (9) on 4-way directional valve
(10) and from steering manifold (14). Install caps/plugs into tube openings.
6.
Tag and disconnect four hydraulic tubes (15, 16, 17, and 18) from four straight pipe-to-tube adapters (9) on 4-way
directional control valve (10) and suspension manifold (11). Install caps/plugs into tube openings.
7.
Tag and disconnect hydraulic tube (19) from tube tee (20) and from hydraulic filter (21). Using two wrenches, tag
and disconnect hydraulic tube (22) from tube tee (20) on 4-way directional control valve (10) and from pressure
gage (23). Install caps/plugs into tube openings.
8.
Tag and disconnect hydraulic tubes (24 and 25) from tube to boss tee (26) on 4-way directional control valve (10)
and from steering manifold (14). Install caps/plugs into tube openings.
9.
Using one person, support 4-way directional control valve bank (10); using a second person, remove three
capscrews (27), lockwashers (28), and 4-way directional control valve bank (10) from hydraulic control module
(4). Discard lockwashers.
10.
Using two people, move 4-way directional control valve bank (10) out from under hydraulic control module (4) and
set on top of platform.
11.
Remove 10 straight pipe-to-tube adapters (9) and preformed packings (29) from 4-way directional control valve
bank (10). Discard preformed packings. Install caps/plug onto fittings and into valve bank openings.
12.
Remove tube tee (13), pipe adapter (30), and preformed packing (31) from 4-way directional control valve bank
(10). Discard preformed packing. Install caps/plug onto fitting and into valve bank opening.
13.
Using a 1-1/4 inch wrench, remove tube coupling nut (32), tube reducer (33), tube to boss tee (22) and preformed
packing (31) from 4-way directional control valve bank (10). Discard preformed packing. Install caps/plug onto
fittings and into valve bank opening.
14.
Remove all five valve handles from 4-way directional control valve bank (para. 4-81).
DISASSEMBLY
CAUTION
A clean area must be maintained during disassembly of the 4-way directional
control valve bank or contaminates may enter one of the valve sections and cause
premature failure of the valve bank or damage to equipment may result.
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