© Feb. 2023 62 TB20J Plus Maintenance Manual
POWER SYSTEM
2. Make sure that the machine and engine are
horizontal.
3. Place an appropriate oil-collecting vessel under the
engine oil drain valve.
4. Open the drain valve to allow the oil to flow out.
Hot engine oil poses a risk of burns, so avoid
contact with hot oil when draining oil.
5. Install the drain valve after the oil is fully drained.
6. Fill with correct and clean engine oil according to
the Oil Requirements , and never overfill the tank.
7. Warm up the engine so that the engine oil reaches
approximately 80°C (176°F) and then shut down the
engine.
8. Check the oil level, which should be in the proper
position.
Replace the Engine Oil Filter Element
It is recommended to replace the engine oil filter ele-
ment every 6 months or after 500 hours of operation.
NOTICE
Do not pre-fill the filter, or the filter may be
contaminated.
Fig 5 Diagram of replacing engine oil filter
element
1. Place an appropriate oil-collecting vessel under the
engine oil filter.
2. Use a special tool to loosen and unscrew the filter
element.
3. Collect the drained fuel.
4. Wipe the sealing surface of the filter holder with
clean, non-fiber cloths.
5. Apply a thin layer of oil to the sealing surface of the
new filter.
6. Screw on the new filter by hand until the gasket is
touching, then tighten it with the torque of 10-12Nm
(7-9ft-lb).
Cooling System
It is recommended to replace the coolant every year or
after 1000 hours of operation.
Check the Coolant Level
1. Turn off the engine.
2. Make sure that the machine and engine are
horizontal.
3. After the coolant temperature drops below 50°C
(122°F), slowly open the coolant filler cap to check
the coolant level.
4. The coolant level should be between the MIN and
MAX marks on the box body.
5. If necessary, fill with correct coolant according to the
Oil Requirements , and do not overfill the tank.
Empty the Cooling System
1. After the engine and radiator have cooled suffi-
ciently (to the temperature below 50°C /122°F),
carefully open the cooler locking cap.
2. Place an appropriate container under the discharge
outlet.
3. Remove the locking screw #1 inside the crankcase.
4. Drain the coolant.
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