TM 5-3805-254-34
6-34.
CONTROL VALVE REPAIR (Cont).
WARNING
Dry cleaning solvent, P-D-680, Is toxic and flammable. Always wear protective goggles and
gloves, and use only In a well-ventilated area. Avoid contact with skin, eyes, and clothes, and
DO NOT breathe vapors. DO NOT use near open flame or excessive heat. The solvent's flash
point is 1000F-138°F (380C-590C). If you become dizzy while using cleaning solvent,
Immediately get fresh air and medical help. If solvent contacts eyes, Immediately wash your
eyes and get medical aid.
Compressed air used for cleaning or drying purposes, or for clearing restrictions, should
never exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield, gloves, etc.) and use
caution to avoid Injury to personnel.
5.
Inspect oil passages in oil transfer plate to ensure they are clean. Flush with dry cleaning solvent and dry with
compressed air.
6.
Inspect for broken or deformed springs. Springs must meet the requirements shown in Table 6-1:
Table 6-1. Spring Load-Length Requirements.
Callout
Length
Length
No
Spring
Without Load
With Load
Load
9
Modulator Valve
1.47 in
0.80 in
11.90-13.10 lb
(37.34 mm)
(20.32 mm)
(52.9-58.3 N)
15
Lubrication Valve
2.48 in
1.97 in
32.25-37.05 lb
(62.99 mm)
(50.04 mm)
(143.45-164.81 N)
19
Priority Valve
1.17 in
0.94 in
8.60-8.80 lb
(29.69 mm)
(23.88 mm)
(38.3-39.14 N)
27
Third Clutch
1.69 in
1.10 in
32.60-39.80 lb
Trimmer Valve (inner)
(42.93 mm)
(27.94 mm)
(145.01-177.04 N)
28
Third Clutch
2.96 in
1.10 in
15.95-17.65 lb
Trimmer Valve (outer)
(75.18 mm)
(27.94 mm)
(70.95-78.51 N)
32
Second Clutch
1.69 in
1.10 in
32.60-39.80 lb
Trimmer Valve (inner)
(42.93 mm)
(27.94 mm)
(145.01-177.04 N)
33
Second Clutch
2.30 in
1.94 in
9.40-11.40 lb
Trimmer Valve (outer)
(58.42 mm)
(49.28 mm)
(41.81-50.71 N)
36
Accumulator Valve
2.77 in
1.49 in
11.60-12.80 lb
(70.23 mm)
(37.85 mm)
(51.60-56.94 N)
39
Fourth Clutch
2.38 in
1.94 in
29.00-35.00 lb
Trimmer Valve (outer)
(60.45 mm)
(49.28 mm)
(128.99-155.69 N)
6-160