TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download

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 2-1561 TM 9-2320-365-20-2 Table 2-40. Off-Going Clutch Pressure Tap Sub Code Off-Going Clutch(s) Sub Code Meaning N3-N2 or N2-N3 Shift 08 18 28 29 38 39 48 49 58 59 68 69 78 99 1-N1 Shift 2-N1 Shift 2-N2 Shift 3-N1 Shift 3-N3 Shift 4-N1 Shift 4-N3 Shift 5-N1 Shift 5-N3 Shift 6-N1 Shift 6-N4 Shift R-N1 Shift L-N1 Shift C3 C1 C1 & C4 C1 C1 & C3 C1 C1 & C2 C1 & C2 C2 & C3 C2 C2 & C4 C2 C3 C2 & C4 (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 off-going clutch indicated by the sub code. Refer to Table 2-40. Off- Going 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) and run at idle. (7) With parking brake applied, make shift indicated by sub code while assistant notes reading on STE/ICE-R. Refer to Table 2-40. Off-Going Clutch Pressure Tap. (8) If off-going clutch pressure does not go to 8 psi (55 kPa) or less when shift is made, notify DS Maintenance. (9) If off-going clutch pressure does go to 8 psi (55 kPa) or less when shift is made, replace WTEC III transmission ECU (para 8-7). (10) Shut down engine (TM 9-2320-365-10). (11) Remove pipe to tube adapter, hose, and tube to boss adapter from pressure tap. (12) Position preformed packing and pressure tap plug in control valve module. (13) Tighten pressure tap plug to 84-120 lb-in. (9-14 N·m). (14) Remove drain pan under pressure tap. (15) Install front and rear propeller shafts (para 9-2). (16) Clear diagnostic codes (para 8-5).