MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
226
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 5-3-2 Removing the earthing cable of
storage battery
Fig. 5-3-3 Removing the clutch assembly
Fig. 5-3-4 Removing the radiator assembly
(for reference only)
Removal
Preparation
(1) Disconnect the earthing cable of storage battery.
See Fig. 5-3-2.
(2) Drain coolant of the cooling system.
(3) Drain the lubricating oil of the transmission.
Warning:
Risk of burn from the hot engine oil.
Properly handle the waste engine oil and protect the
environment.
Removing the transmission assembly and the
clutch assembly
①
Lift the vehicle and support it with appropriate safety
rack.
(1) Transmission assembly
——Remove the drive shaft on the flange yoke.
——Remove the rotation speed sensor connector.
——Remove the fastening bolts connecting the
transmission and clutch in proper order, and remove the
transmission assembly.
(2) Clutch assembly
Attention:
Do not leave any liquid on the clutch
surface, and clean it immediately.
——Remove the pressure plate assembly. See Fig.
5-3-3.
——Remove the driven disc assembly.
——Use guide centering device to prevent the clutch
from falling off the driven disc assembly freely.
Guide centering device: 5-5825-3001-0.
——Make a mark on the flanges of flywheel and
pressure plate to facilitate the alignment during the
installation.
——Loosen the fastening bolts of the clutch pressure
plate assembly, and remove the clutch assembly, as
shown in Fig. 5-3-3.
Removing the radiator assembly
②
(1) Loosen the clip of upper / lower hose for the radiator,
