TM 5-3810-306-34
TABLE 3-1. DIRECT AND GENERAL SUPPORT TROUBLESHOOTING (CONTD)
Malfunction
Test or Inspection
Corrective Action
24. LOW TRANSMISSION CLUTCH PRESSURE
Step 1.
Clutch pressure regulating valve spool stuck open.
a. Remove and inspect valve spool housing. (Refer to
b. Clean and repair pressure regulating valve.
Step 2.
Faulty charging pump.
a. Install pressure gauge in pump outlet and check for
pressure of 300 psi. If OK, do Step 3.
b. Replace pump. (Refer to page 7-5.)
Step 3.
Broken or worn clutch shaft or piston sealing rings.
a. Disassemble transmission and inspect sealing rings.
(Refer to page 7-23.) If OK, do Step 4.
b. Replace sealing rings.
Step 4.
Clutch piston bleed valve stuck open.
a. Disassemble transmission and clean bleed valves.
(Refer to page 7-23.) If OK, do Step 5.
Step 5.
Transmission malfunctioning.
a. Close pressure line to tr ansmission control valve. If
clutch pressure returns to normal, transmission is
faulty.
b. Repair or replace transmission. (Refer to page 7-23.)
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