TM 5-3805-254-34
6-33.
LOW SHIFT VALVE REPAIR.
This Task Covers:
a.
Disassembly
c.
Assembly
b.
Cleaning and Inspection
Initial Setup:
Equipment Conditions:
Materials/Parts:
• Low shift valve removed (see paragraph 6-13).
• Hydraulic fluid (Item 7, Appendix B)
Tools/Test Equipment:
• Dry cleaning solvent (Item 23, Appendix B).
• General mechanic's tool kit
• Field automotive shop set
General Safety Instructions:
• Dry cleaning solvent is flammable and must not be used near open flame. Use only in a well-ventilated area.
• Compressed air used for cleaning or drying purposes, or for clearing restrictions, should never exceed 30 psi (207
kPa).
a.
DISASSEMBLY
1.
Press inward on plug (7) and remove pin (2).
2.
Release pressure and remove plug (7), valve
stop (6), spring (5), and relay valve (4) from low
shift valve body (1).
3.
Mark position of adjusting ring (8) in low shift
valve body (1) for assembly.
4.
Press inward on adjusting ring (8) and remove
pin (3).
5.
Release pressure and remove adjusting ring (8),
washer (9), valve stop (10), spring (11), and low
shift valve (12) from low shift valve body (1).
b.
CLEANING AND INSPECTION
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
100°F-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.
1.
Clean metal parts with dry cleaning solvent.
TA703866
6-149
