TAKING OIL SAMPLE FOR ANALYSIS

TM-9-2320-273-20 Truck 6 Ton 6x6 M939 M939A1 and M939A2 (Diesel) Manual
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TM 9-2320-273-20 TRANSMISSION. 6-9. OIL SERVICE (Continued). LOCATION/lTEM ACTION REMARKS A. DRAINING OIL (Continued). 1. Dipstick (4). Remove. 2. Drain plug (6) and a. Unscrew and remove. O-ring (7). b. Throw away O-ring. c. Allow oil to drain out. d. Inspect magnetic base of If there are large metal particles plug. notify Direct Support Mainte- n a n c e . e. Install new O-ring (7) on drain plug (6). f. Screw in plug and tighten, A-1. TAKING OIL SAMPLE FOR ANALYSIS NOTE Before beginning this task check trans- mission oil level according to operator’s manual (TM 9-2320-273-10). Start engine (see TM 9-2320-273-10), warm vehicle to normal operating range and stop engine. 1. Draincock (16) a. Unscrew and loosen. When taking a sample, first use a container to drain a small amount of oil to clean the valve assembly. b. When completed with task 1., use the proper bottle and take oil sample from the transmission drain valve (see TB 43-0210). c. Check oil level to insure proper level after sampling. 6-12 Change 2

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