1
Knob
5-27. Hydraulic Control Valves (Model 2385)
2
Bolt
a. General. There are five hydraulic, spool type,
3
Lockwasher
control valves. The transmission gear range selector
4
Flat washer
control, the steering selector control, the 4 bank,
5
Stop plate
directional control for the outriggers, the utility blade
6
Screw
control, and the fan drive control.
7
Lockwasher
b. Transmission Gear Range Selector Tower
9
Pipe plug
Hydraulic Control Valve.
10
Housing
(1) Removal. Remove transmission gear.
11
Stop pin
range selector tower hydraulic control valve (TM 5-
12
Roll pin
3810-232-12)
(2)
Disassenbly.
Disassemble
13
Inner spring
transmission gear range selector tower hydraulic control
14
Outer spring
valve as illustrated in figure 5-32.
15
Piston
(2) Disassembly. Disassemble transmission
16
Valve stop
gear range tower hydraulic control valve illustrated in
17
Snap ring
18
O-ring
(3) Cleaning, inspection and repair.
19
Spool
(a) Clean all metal parts with an
20
Plug
approved cleaning solvent and dry thoroughly.
21
Link
(b) Inspect all parts for cracks, scoring,
22
Spring
corrosion, or other defects.
24
Fitting
(c) Replace all gaskets, O-rings, and
25
Link
damaged or defective parts.
27
Plug
(4) Reassembly. Reassemble transmission
28
Roll pin
gear range selector tower hydraulic control valve as
30
Pin
illustrated in figure 5-32.
32
Spring
(5) Installation.
Install transmission gear
31
Plug
range selector tower hydraulic control valve (TM 5-3810-
33
Ball
232-12).
35
Plug
36
Spring
37
Ball
38
Pin assembly
39
Bearing
40
Snap ring
41
Gasket
42
Cap
43
Oil seal
44
Bracket
45
Lock screw
46
Roll pin
47
Roll pin
48
Lever
5-68
