Operation and Maintenance Manual for PowerKit 6M16 Series
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5.2.10 Coolant temperature is too high
Cause
Troubleshooting
(1)
Coolant level in expansion tank is too low
Check for leakage. Add coolant.
(2)
Water pump belt is slack
Adjust the belt tension in accordance with the
requirements.
(3)
Damaged washer or worn impeller of water pump
Check, repair or replace
(4)
Damaged water pipe is sucking air in
Check the water pipe, pipe joint and washer. Replace
the damaged ones.
(5)
Thermostat failure
Replace.
(6)
Expansion tank clogged
Check, clean and repair the expansion tank.
(7)
Oil of oil panis insufficient
Check the oil level. If any leakage, repair it and add
engine oil.
5.2.11 Parts wear is too fast
Cause
Troubleshooting
(1)
Air filter element is unqualified or damaged
Check and replace the air filter element.
(2)
Short circuit of air intake system
Check the intake pipe, gasket and connecting sleeve.
Repair or replace the damaged ones.
(3)
Engine oil filter element is not replaced timely
Replace the filter element at the required interval.
(4)
Insufficient oil in oil pan
Check the oil level. Check for and repair leakage. Add
engine oil.
(5)
Engine oil grade is not compliant
Use engine oil of proper grade.
(6)
Engine oil is unqualified
Replace with compliant engine oil.
(7)
Oil passage clogged
Clean the oil passage.
(8)
Piston ring is broken or worn
Replace the piston ring.
(9)
Cylinder liner or piston is worn or piston scraping
Take down and inspect the piston and cylinder liner.
Repair or replace the damaged ones.
(10)
Crankshaft axis is not in line with the axis of
driven shaft
Check and repair the mounting bracket.
(11)
Part/component is worn excessively
Check the cumulative driving distance to see whether
overhaul is needed.
