TM 5-3810-306-34
TRANSMISSION CONTROL VALVE ASSEMBLY
TOOLS: General mechanic's tool kit: automotive (5180-00-177-7033)
SUPPLIES:
Hydraulic oil (Item 8, Appendix B)
Loctite #545 (Item 18, Appendix B)
Preformed packing (Item 60, Appendix B) (2 Required)
Seal (Item 59, Appendix B) (2 Required)
Washer (Item 61, Appendix B)
Lockwasher (Item 26, Appendix B)
Gasket (Item 62, Appendix B)
EQUIPMENT CONDITIONS: Transmission control valve removed. (Refer to TM 5-3810-306 - 20.)
h. Remove and discard oil seals (4 from two spool
DISASSEMBLY:
shafts.
1. DISASSEMBLE
TRANSMISSION
CONTROL
i.
Remove snap ring (5) and washer (6) which
VALVE.
secure control spool (7) located near neutral
safety switch port. Remove the spool (7).
a. Remove fittings from valve and save for
installation.
j.
Remove snap ring (5), washer (6 and spacer 18)
from other spool (8) and remove spool (8) and
b. Remove neutral safety switch (13) and ball (12)
plug (9).
from valve body (3).
CLEANING:
c.
Remove plug (22), washer (21), spring (20) and
ball (19) from bolt head side of valve.
1. CLEAN ALL PARTS IN SOLVENT P-D-680 AND
BLOW DRY WITH AIR.
d. Remove nine bolts (23) and lockwashers (24)
which secure valve plates (3) together.
WARNING
NOTE
Dry cleaning solvent P-D-680 is toxic
When separating plates take care not
and flammable.
Wear protective
to lose detent balls (27) and springs
goggles and gloves and use only in a
(28).
well ventilated area. Avoid contact
with skin, eyes, and clothes and do
e. Separate plate and remove detent balls (27),
not breathe vapors. Do not use near
springs (28) and gasket (26).
open flame or excessive heat. The
flash point is 100F-138F (38-59C).
f.
Remove plug (10), packing (11) and spacer (25)
If you become dizzy while using
from base of valve. Discard packing (11).
cleaning solvent, get fresh air
immediately and get medical aid. If
g. Rotate valve body so spools are visible.
contact with eyes is made, wash your
Remove center plug (14), packing (15), spool
eyes with water and get medical aid
(16) and spring (17). Discard packing (15).
immediately.
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