ATTACHMENT CONTROL VALVE REPAIR - continued

TM 10-3930-673-34

(g)

Remove three shuttle plates (15), four springs (16) and four pistons (17) from each face of

housings (1 through 4).

(h)

Remove 16 screws (18),

lockwashers (19), and eight electric

hydraulic proportioning (EHP)

assemblies (20) from housings (1

through 4). Discard lockwashers.

(i)

Remove one preformed packing (21)

and two preformed packings (22)

from each EHP assembly (20).

Discard preformed packings.

(j)

Remove spring (23), spring seat (24),

plunger (25), spacer (26), and

disk (27) from each EHP

assembly (20).

(k)

Remove spools (28 and 29) and two

TR00748

spools (30) from housing sections (1

through 4).

(l)

Remove two plugs (31) and preformed packings (32) from inlet housing (5). Discard preformed

packings.

(m) Remove plug (33) and preformed packing (34) from inlet housing (5). Discard preformed

packing.

b. Cleaning. See Cleaning Instructions (Para 2-12).

c. Inspection. See Inspection Instructions (Para 2-14).

d. Assembly.

NOTE

Wipe all sealing surfaces on valve clean and dry. Apply film of clean hydraulic oil to all

seals as they are installed.

(1)

Assemble attachment control valve parts (1 through 34).

(a)

Install preformed packing (34) and plug (33) in inlet housing (5).

(b)

Install two preformed packings (32) and plugs (31) in inlet housing (5).

(c)

Install spools (28 and 29) and two spools (30) in housing sections (1 through 4).

(d)

Install disk (27), spacer (26), plunger (25), spring seat (24), and spring (23) in each EHP

assembly (20).

(e)

Install two preformed packings (22) and preformed packing (21) on each EHP assembly (20).

(f)

Install eight EHP assemblies (20), 16 lockwashers (19), and screws (18) on housings (1

through 4).

16-23