MAINTENANCE EVERY 500 SERVICE HOURS
1. Replacing the fuel filter element
You can take out the element by closing the cock
and removing the retainer ring.
Replace it with new one.
O ring must be replaced with new one in this time.
After replacing the element, bleed air.
For details refer to page 64.
2. Replacing cooling water in radiator
Remove the drain plug on radiator to replace the
cooling water.
5.6
3. Cleaning the suction filter
Remove the suction filter from the hydraulic oil
tank. Clean the filter with diesel fuel or kerosene
to remove the dirt. If the strainer is broken,
replace it with new one.
To reinstall the lid, set the O-ring securely into the
flange groove in order to prevent a leak of hydrau-
lic oil.
Do not perform this operation while the hydraulic
oil is still hot to avoid being burned.
4. Replacing the line filter element
Remove the filter with a filter wrench and replace
it with new one.
Before replacing the filter, be sure to open the
hydraulic oil tank to bleed the filter.
Drain plug
!
CAUTION
!
CAUTION
IMPORTANT
IMPORTANT
Fuel filter
- 59 -
Line filter
Suction filter
Summary of Contents for HY2270001
Page 1: ...OPERATION MANUAL SER NO HY2270001 ...
Page 2: ...https marengine com r22 7 excavator ...
Page 5: ......
Page 16: ... 63 Figure 2 ...