5.3.1 Checking engine periphery
Check the periphery of the engine each time before starting:
Check if the engine is in clean state and free from useless things
on it.
Check the joints and connections of the fuel system, cooling
system and lubricating system for leakage.
Check if the fan and its safety guard are fastened in place.
Check the fastening condition of the accessories.
Check the electrical circuits and the wire for intact.
Check the drive belt for intact.
5.3.2 Checking fuel tank
Check the fuel level in the fuel tank daily
5.3.3 Checking air filter service indicator
If the viewing window shows the red piston, it represents that the
intake resistance of the air filter exceeds the specified value, and the filter
element requires to be replaced. Refer to Section 5.3.23 for the requirement
and procedure of the replacement. Press the button on the top of the service
indicator for reset after the replacement.
Caution: Be sure that both end faces of the air filter are
reliably sealed without leakage after the air filter element has been changed.
Caution: Do not start the engine without an air filter, and
failure to do so would easily cause early engine wear.
5.3.4 Checking oil level
Check the oil level daily before starting the engine for the first
time, and the oil level should be near the mark 3 (static high oil level). Or
check the oil level daily at idle or low speed when the engine is in operation,
and the oil level should be between the mark 2 (dynamic high oil level) and the
mark l (dynamic low oil level). if oil is not enough, supplement it to near the
mark 2 and if the oil level is below the mark l, add oil immediately to near
the mark 2.
Caution: Do not run the engine when the oil level is below the
mark l, otherwise it can result in poor engine performance, or even damage to
the engine. But the oil level should not exceed the mark 2.
5.3.5 Checking coolant level
Check the coolant level daily before starting the engine or after
the engine has stopped.
Warning: At operating temperature, engine coolant is hot and under
pressure, and the coolant steam can cause personal injury. Do not remover the
pressure cap on the radiator until the engine stops and the coolant temperature
drops to below 50'C. Slowly loosen the cap to release the cooling system
pressure before checking the coolant level or making supplement.
Warning: Avoid skin or eye contact with coolant to prevent
personal injury because the coolant contains alkali.
(1) Slowly loosen the pressure cap on the radiator to release
pressure before starting the engine or until the coolant temperature goes below
50'C after stopping the engine.
(2) Remove the pressure cap and check coolant level from the
filler or inspection port. The coolant level should remain between the marks in
the radiator or expansion tank, or meet the requirement of the equipment
manufacturer.
(3) Add if necessary. Coolant should be added near the upper mark
or meet the requirement of the equipment manufacturer.
Caution: Coolant should be added slowly to avoid air block.
5.3.6 Checking electrolyte level
Batteries that are not maintenance-free need electrolyte level checking.
1）Check the
electrolyte level before starting the engine.
Remove the filter cap and check the electrolyte level. It should
be at the bottom of the filler part. If necessary, make supplement as per
requirement.
(2) Install the cap.
5.3.7 Checking first stage fuel filter and draining water
The first stage fuel filter has a function of fuel and water
separation. Check daily if there is water in the water container and discharge
water if any. Loosen the water drain cock to drain the water and sediment until
clean fuel outflows. Then tighten the valve until you feel suitable. Don't over
tighten it.
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