© Jun 2022 5-12 TB24 Plus&26J Plus Maintenance Manual
MAINTENANCE PROCEDURES
Figure 5-9 WEICHAI WP3.2 fuel strainer
Figure 5-10 YUCHAI YCF3050 fuel strainer
3. Loosen the plug of drain valve at the bottom, and
drain the water into a suitable vessel until the fuel
flows out.
Figure 5-11
4. Tighten the valve plug.
5. Clean up the spilled fuel.
6. Start the engine from the ground controller and
inspect the fuel strainer (fuel—oil separator) for
leakage.
A-12 Inspect Cooling Fan
Inspecting cooling fan is vital to normal functioning of
engine and extending service life.
NOTICE
Shut off the engine before inspection.
1. Open the cover on the right side of engine.
2. Locate the cooling fan in the radiator of engine.
3. Inspect the cooling fan for：
• Cracks
• Tilting or loosening
• Abrasion
4. Please replace immediately if any of the above
conditions occurs.
A-13 Inspect Engine Intake System
Inspecting the engine intake system is vital to good
engine performance and extending service life.
NOTICE
Shut off the engine before inspection.
1. Inspect whether the engine intake tube is damaged
or extruded flat, or getting loose. If such conditions
occur, the dust or debris may enter the engine.
2. Tighten or replace parts, if needed, to assure the
intake system free from leakage.
NOTICE
Even if a tiny amount of dust or debris gets inside the
engine, it will result in severe wear of piston ring and
increased exhaust. Be sure to keep the intake
system clean and free of leakage.
A-14 Functional Tests
Testing each machine function is vital to safe machine
operation. If any function operates improperly, it will
pose dangers to safe operation. Ensure any function
operates smoothly and reliably, without shaking, sharp
or unusual noise.
UNSAFE OPERATION HAZARD
Be sure to observe the instructions
and safety rules noted in this manual
and Operation Manual, otherwise it
may lead to death or severe injury.
For the specific procedure for function tests, please
reference the Pre-operation Function Test section in
Operation Manual. Before performing the function test,
ensure that the safety rules in the operation manual are
fully read and understood.
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