Service & Adjustment Data
222
D760.H03E-001.H1907
Tightening Torque
Please refer to the specific configurations of your vehicle.
Engine
Please refer to the attached Operation and Maintenance Manual of Cummins
Engine for the relevant data.
Tightening torque of critical parts of chassis (applicable for D760 models)
CAUTION:
This standard provides the tightening torque of critical parts of vehicles
manufactured by DONGFENG COMMERCIAL VEHICLE CO., LTD. and is
applicable for the critical parts’ threaded fasteners for which the tighten-
ing torque is not given in the vehicle product diagram and the technical
specifications.
Tightening torque of critical parts of engine mounting
Tightening torque of critical parts of cooling and inter-cooling systems
Bolted position
Thread
specification
Reference
tightening
torque(N·m)
Remarks
Front and rear suspension bracket
and frame fastening bolt
M14 190±15% --
Mounting bolts between engine
front/rear mounting cushion and
auxiliary mounting cushion
M14 170±15% --
M20
170±15% --
Engine and front mount bracket/fly-
wheel housing and rear mount
bracket fastening bolts
M18 375±15%
Bolted position
Thread
specification
Reference
tightening
torque(N·m)
Remarks
Fastening bolts of fan assembly flange and
engine
M08(Grade 8.8) 20-26 --
M08(Grade 10.9) 25-30 --
M12(Grade 8.8) 65-75 --
M12(Grade 10.9) 90-110 --
Fastening bolts of fan and fan buffer block
M10(Grade 8.8) 38-50 --
M10(Grade 10.9) 45-55 --
Fastening bolts of fan flange and fan buffer
block
M12(Grade 8.8) 65-75 --
M12(Grade 10.9) 90-110 --
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