Chapter II Technical Information of Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
51
exterior washing (in a cold season, first move it to a
warm room for a day to melt the frozen fouling) and then
wash it.
3.1 Drain out the lubricating oil (oil pan) and replace it
with diesel to wash, then drain out the diesel.
3.2 Drain out the fuel and coolant.
3.3 Remove the electric devices such as the generator
and starter, the parts of turbocharger and electric control
system. See Fig. 2-9-2 and Fig. 2-9-3.
3.4 Wash the exterior of diesel engine. See Fig.
2-9-4.Spray pressured water with a hose to wash the
engine exterior, to do this, use a centrifugal water pump
or plunger water pump and a water gun; the pressure of
water flow should be 147 ~ 216 kPa. This washing
process has a high quality, high efficiency and low water
consumption. It is recommended to recollect the washing
water and reuse it for the purpose of environment
protection and water conservation.
Section X Technical Requirements for Engine Removal and
Reinstallation
Fig. 2-10-1 Assembling according to
technical requirement
1. General Technical Requirements for
Assembling
Assembling is to connect the engine parts in accordance
with technical requirements, keep the parts in the correct
positions and connecting relationship.
1.1 The spare parts assembled should be those
manufactured according to the drawings and technical
conditions of GW4D20
／
GW4D20B turbocharged diesel
engines approved by our company, and their materials,
metallurgical structures, performances, geometrical
shapes, dimensions, positions, fitting, tightening torque,
sealing, and reliability should comply with the
requirements.
1.2 The spare parts assembled must be tested by the
quality control department.
―Caution‖: The spare parts must be checked
seriously before assembled, do not assemble unqualified
parts to avoid wasting time.
1.3 The parts must be washed and the edge or burr must
be removed before the parts are assembled; the
cleanness of the part should comply with relevant
technical documents.
1.4 The assembling location, instruments, tooling and
measuring apparatus should be cleaned; the staff getting
Repair the abnormal
parts immediately
Oil
