TM 5-3805-248-23-2
CONTROL GROUP PRESSURE TEST - CONTINUED
0284 00
TESTING - CONTINUED
85.
Determine spacer thickness change to tap A pressure. Refer to Table 3, Spacer Chart. Change spacers in shift pressure
valve if necessary (WP 0367 00).
86.
If pressure reading is too low, add tap A pressure reading at 750 RPM to 45 psi. This figure is pressure change required.
If pressure reading is too high, subtract tap B pressure reading at 750 RPM from 45 psi. This figure is pressure change
required.
87.
Determine thickness change for tap B pressure. Refer to Table 3 Spacer Chart. Change spacers in shift pressure valve if
necessary (WP 0367 00).
88.
If pressure reading is too low, add tap B pressure reading at 2,250 RPM to 300 psi. This figure is the pressure change
required. If pressure reading is too high, subtract tap B pressure reading at 2,250 RPM from 60 psi. This figure is the
pressure change required.
89.
Determine thickness change for tap C pressure. Refer to Table 3. Change spacers in pressure control valve if necessary
Spacer Part
Pressure
Pressure Tap
Thickness
Spacer Location
Number
Change
A
7M1397
0.036
9.0
Shift Pressure Valve
B (750 RPM)
8S6214
0.016
4.5
Shift Pressure Valve
8S6215
0.036
10.0
Shift Pressure Valve
B (2,250 RPM)
2S674
0.016
8.0
Shift Pressure Valve
2S675
0.036
18.2
Shift Pressure Valve
C
8S6214
0.016
2.5
Pressure Control Valve
8S6215
0.036
5.6
Pressure Control Valve
CAUTION
Changing spacers to get satisfactory initial pressures will cause some change in transmission control pres-
sures. Spacer thickness selections may have to be changed in order to retain satisfactory transmission control
pressure. Failure to follow this procedure could cause damage to equipment.
90.
Compare Table 1, Transmission Control Pressure Chart, specifications with required pressures for taps A, B and C.
Make sure spacer change for initial pressure requirements does not cause out-of-tolerance transmission control pres-
sures. Modify spacer thickness as required.
0284 00-15
