TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download
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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. CLUTCH PRESSURE TEST Change 1 2-1557 TM 9-2320-365-20-2 Table 2-39. Clutch Pressure Tap Sub Code Sub Code Meaning Pressure at Clutch(s) Pressure Readings at Taps 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 215-334 psi (1480-2300 kPa) 215-305 psi (1480-2103 kPa) 142-203 psi (980-1400 kPa) 142-203 psi (980-1400 kPa) 142-203 psi (980-1400 kPa) 215-334 psi (1480-2300 kPa) 128-189 psi (880-1300 kPa) 128-189 psi (880-1300 kPa) CLUTCH PRESSURE TEST (CONT) (19) If all clutches indicate proper pressure, replace WTEC III transmission ECU (para 8-7). (20) Clear diagnostic codes (para 8-5). (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 2-39. 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 2-39. Clutch Pressure Tap. (8) Accelerate engine until WTEC III TPSS displays desired range. Refer to Table 2-39. 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 under pressure tap. (17) Install front and rear propeller shafts (para 9-2). (18) If one or more clutches fail to indicate proper pressure, notify DS Maintenance.