OPTION AR 4448420 - Caterpillar

Table 4
(7) Shims for the Pressure Control Valve    
Valve Location (1)     A     B     C     E     F     G     H    
Clutch that is engaged     4     2     1     5     6     7     3    
The thickness of the shim     Pressure Change     Pressure Change     Pressure Change     Pressure Change     Pressure Change     Pressure Change     Pressure Change    
5J-2721 Shim    
0.13 mm (.005 inch)    
13 kPa (1.9 psi)    
16 kPa (2.4 psi)    
20 kPa (2.9 psi)    
17 kPa (2.4 psi)    
17 kPa (2.4 psi)    
18 kPa (2.7 psi)    
18 kPa (2.6 psi)    
6J-3993 Shim    
0.25 mm (.010 inch)    
26 kPa (3.8 psi)    
33 kPa (4.8 psi)    
41 kPa (5.9 psi)    
33 kPa (4.8 psi)    
33 kPa (4.8 psi)    
37 kPa (5.4 psi)    
35 kPa (5.1 psi)    
4M-1751 Spacer    
0.40 mm (0.016 inch)    
42 kPa (6.1 psi)    
53 kPa (7.7 psi)    
65 kPa (9.4 psi)    
53 kPa (7.7 psi)    
53 kPa (7.7 psi)    
59 kPa (8.6 psi)    
56 kPa (8.2 psi)    
5J-1036 Shim    
0.80 mm (0.032 inch)    
84 kPa (12.2 psi)    
103 kPa (15.0 psi)    
126 kPa (18.2 psi)    
103 kPa (15.0 psi)    
103 kPa (15.0 psi)    
114 kPa (16.6 psi)    
109 kPa (15.8 psi)    
( 1 ) Valve location (D) is not used.Problem: The primary pressure is correct, but the maximum pressure is not correct.
Probable CauseInner spring (7) is weak or broken, and/or outer spring (8) is weak or broken.Problem: The pressure at one clutch is 0 kPa (0 psi).
Probable Cause
Selector piston plug (1) is not installed.
The selector piston (10) is stuck.
The modulation reduction valve (2) is stuck.Problem: The primary pressures at all the clutches are 0 kPa (0 psi).
Probable CauseThe probable cause is the pilot pressure. Perform the test in the Testing and Adjusting, "Transmission Hydraulic Control Pilot Pressure - Test and Adjust".Problem: The primary pressures at all the clutches are too low.
Probable CauseThe probable cause is the pressure for the transmission charging pump section of the transmission gear pump. Perform the test in the Testing and Adjusting, "Gear Pump (Transmission) Pressure - Test and Adjust".Problem: The primary pressure at one clutch is too low.
Probable Cause
Selector piston (10) is stuck.
Inner spring (7) is weak or broken, and/or outer spring (8) is weak or broken.
Incorrect inner spring (7) and/or outer spring (8) .
The primary pressure is set incorrectly. Add shims (5). Refer to Table 4.Problem: The primary pressure at one clutch is too high.
Probable Cause
Incorrect inner spring (7) and/or outer spring (8) .
The primary pressure is set incorrectly. Remove shims (5). Refer to Table 4.Problem: An additional clutch receives pressure oil in certain speeds.
Probable Cause
Decay orifice (4) is plugged.
The drain orifice in the return end of the rotary selector spool is plugged.
A selector piston (10) is stuck.
A