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Direct Support and General Support Maintenance, Truck 5 Ton, 6x6, M939 and M939A1 Series (Diesel). Two large volumes.
Covers maintenance of the "900" series of 5 ton trucks made by AM General and BNY. Models include: M923, M924, M925, M926, M927, M928, M929, M930, M931, M932, M934, M935 & M936.
The trucks are equipped with a Cummins NHC 250 855 cu in (14.0 L) naturally aspirated diesel engine, producing 240 hp (180 kW) at 2100rpm and 685 lbf·ft (929 N·m) at 1500rpm. The M939A2 models use a newer and smaller Cummins 6CTA8.3 504 cu in (8.3 L) turbocharged diesel engine producing 240 hp (180 kW) at 2100 and 745 lbf·ft (1,010 N·m) at 1500rpm.
All models have an Allison 5 speed automatic transmission with a two speed transfer case.
This manual covers the M939 series and M939A1 series. Useful with respect to most systems on the -A2 series but doesn't specifically cover the later 8.3L Cummins motor.
Format: Softcover
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