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WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE 25 AND ANY SUB CODE (cont) - TM-9-2320-366-20-21026
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TM-9-2320-366-20-2 M1083 Series 5-Ton 6 x 6 Medium Tactical Vehicles (MTV) Manual
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WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE 53 AND ANY SUB CODE
TM 9-2320-366-20-2
WARNING
CLUTCH PRESSURE TEST (CONT)
(19) If all clutches indicate proper pressure,
Wear approved eye protection when performing
replace WTEC III transmission ECU
transmission pressure checks. If oil contacts
(para 8-7).
eyes, seek medical attention immediately. Failure
(20) Clear diagnostic codes (para 8-5).
to comply may result in injury to personnel.
CLUTCH PRESSURE TEST
(1) Remove front and intermediate 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 2-41.
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 9-2320-366-10-1).
(7) With brake applied, make shift indicated by
sub code. Refer to Table 2-41. Clutch
Pressure Tap.
(8) Accelerate engine until WTEC III TPSS
displays desired range. Refer to Table 2-41.
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 (TM 9-
2320-366-10-1).
(12) Shut down engine (TM 9-2320-366-10-1).
(13) Remove pipe to tube adapter, hose, and
tube to boss adapter from 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 Nm).
(16) Remove drain pan under pressure tap.
(17) Install front and intermediate propeller
shafts (para 9-2).
(18) If one or more clutches fail to indicate
proper pressure, notify DS Maintenance.
Table 2-41. Clutch Pressure Tap
Sub
Sub Code
Pressure
Pressure Readings
Code
Meaning
at Clutch(s)
at Taps
00
Speed Zero in 1st
C3 & C6
215-334 psi (1480-2300 kPa)
11
Speed Zero in 2nd
C1 & C5
215-305 psi (1480-2103 kPa)
22
Speed Zero in 3rd
C1 & C4
142-203 psi (980-1400 kPa)
33
Speed Zero in 4th
C1 & C3
142-203 psi (980-1400 kPa)
44
Speed Zero in 5th
C1 & C2
142-203 psi (980-1400 kPa)
55
Speed Zero in 6th
C2 & C3
128-189 psi (880-1300 kPa)
66
Speed Zero in 7th
C2 & C4
128-189 psi (880-1300 kPa)
77
Speed Zero in R
C3 & C5
215-334 psi (1480-2300 kPa)
Change 1

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