WARNING
Wear approved eye protection when performing
transmission pressure checks. If oil contacts
eyes, seek medical attention immediately. Failure
to comply may result in injury to personnel.
TM 9-2320-365-20-2
Change 1 2-1451
Sub
Code
Sub Code
Meaning
Pressure
at Clutch(s)
Pressure Readings
at Taps
Table 2-27. Clutch Pressure Tap
00
11
22
33
44
55
66
77
Speed Zero in 1st
Speed Zero in 2nd
Speed Zero in 3rd
Speed Zero in 4th
Speed Zero in 5th
Speed Zero in 6th
Speed Zero in 7th
Speed Zero in R
C3 & C6
C1 & C5
C1 & C4
C1 & C3
C1 & C2
C2 & C3
C2 & C4
C3 & C5
142-203 psi (980-1400 kPa)
142-203 psi (980-1400 kPa)
142-203 psi (980-1400 kPa)
128-189 psi (880-1300 kPa)
128-189 psi (880-1300 kPa)
215-334 psi (1480-2300 kPa)
215-334 psi (1480-2300 kPa)
215-305 psi (1480-2103 kPa)
CLUTCH PRESSURE TEST
(19) If all clutches indicate proper pressure,
replace WTEC II TEPSS (para 8-2).
(20) Clear diagnostic codes (para 8-4).
CLUTCH PRESSURE TEST (CONT)
(1) Remove front and rear propeller shafts
(para 9-2).
(2) Position drain pan under pressure tap.
(3) Remove pressure tap plug and preformed
packing from clutch pressure tap indicated
by the sub code. Refer to Table 2-27.
Clutch Pressure Tap. Discard preformed
packing.
(4) Connect tube to boss adapter, hose, and
pipe to tube adapter to clutch pressure tap.
(5) Perform STE/ICE-R Test #50 (TM 9-4910-
571-12&P).
(6) Start engine (TM 9-2320-365-10).
(7) With brake applied, make shift indicated by
sub code. Refer to Table 2-27. Clutch
Pressure Tap.
(8) Accelerate engine until WTEC II TEPSS
displays desired range. Refer to Table
2-27. Clutch Pressure Tap.
(9) Maintain engine speed to keep desired
transmission range while assistant notes
reading on STE/ICE-R.
(10) Let engine return to idle.
(11) Shift transmission into neutral.
(12) Shut down engine (TM 9-2320-365-10).
(13) Remove pipe to tube adapter, hose, and
tube to boss adapter from clutch pressure
tap.
(14) Position preformed packing and pressure
tap plug in control valve module.
(15) Tighten pressure tap plug to 84-120 lb-in.
(9-14 N·m).
(16) Remove drain pan.
(17) Install front and rear propeller shafts
(para 9-2).
(18) If one or more clutches failed to indicate
proper pressure, notify DS Maintenance.
