Hydraulics Maintenance

4. STANDARD MAINTENANCE PRACTICES:
• PERIODIC CHECKING OF OIL LEVEL IN THE RESERVOIR.
• PERIODIC CLEANING OF SUCTION STRAINER.
• RETURN LIFE FILTER ELEMENT TO BE CHANGED AFTER
INITIAL 100 HOURS AND AT 500 HOURS THERE AFTER.
• PERIODIC ANALYSIS OF OIL SAMPLE TO CHECK THE
CONTAMINATION LEVEL.
• FLUSHING OF THE SYSTEM AFTER MAJOR BREAK DOWN
AND RESTART.
• ENSURE PROPER TYPE AND QUANTITY OF SPARE ITEMS
AND PROPER STORAGE.
• DO NOT REFILL THE SYSTEM WITH ANY FLUID THAT HAS
LEAKED OUT.
• DO NOT MIX TWO DIFFERENT GRADES / MAKES OF OIL.

9. PROBABLE CAUSE REMEDY
The line pressure is out of the
rated pressure range of the seals.
Check the seal if it meets with the
use for the line pressure, if not
replace it.
Seal is not compatible with the oil. Either swelling or shrinkage can
occur due to chemical reaction .
Change the seals to the particular
type of oil used
Deformation due to shelf life of
seals.
Flatness or hardness may change
or degradation can occur since
the seals have a specific shelf life.
The finish of the surface which
interfaces with the seal is
improper.
Check the surface of roughness,
burrs & contaminant particles on
the area.
Refinishes the surface, get rid of
burrs, clean the surface area.
Oil Leakage

13. Unless your air compressor is an oil free compressor, do not
operate without lubricant or with inadequate lubricant.
Manufacturers and the company from whom you bought it
from cannot be responsible for failure do to inadequate
lubrication.
1.Ensure unit is off and disconnect from the power source
2.Ensure compressor is on a flat and level surface
3.Remove fill cap / plug
4.Inspect the oil in the crankcase assembly and look for dirt or
debris
Oil should not exceed the halfway point of the sight
glass

14. Remember, the compressor pump head and surrounding parts are HOT!
 Ensure unit is off and disconnect from the power source
 Ensure compressor is on a flat and level surface
 Remove fill cap / plug
 Place collection container underneath the oil drain cap.
Remove the oil drain cap, and let the oil drain out.
 Replace the oil cap and be sure to tighten this nut securely. Teflon tape is
generally a good idea to help create a tighter seal. Fill crankcase with
appropriate oil, be sure it does not exceed the halfway point.

15. 1.Ensure unit is off and disconnect from the power source
2.Allow compressor pump to cool off.
3.Unscrew the filter top from the filter base by turning (generally)
counter-clockwise.
4.Separate the filter top cover from the base.
5.Remove the element from the filter base
6.Blow out dust and debris from the filter element.
7.Replace element if needed.
Reconnect filter top to the base and secure filter.

16. General Preventive Maintenance
Schedule
Procedure Daily Weekly Monthly
Annually
(200 Hours)
Check Pump Oil Level X
Oil Leak Inspection X
Drain water in tank X
check for weird noise and vibration X
Inspect all air leaks X
Inspect belts X
Check air filters, clean or replace X
check safety relief valve X
Check belts if necessary X
Check and tighten all bolts X
Check connections for leaks X
Service pump or engine X