33
Mechanical
seal for the
host
machine
Checking the
leakage
The quantity of oil leakage is
less than 1.5g/h
Motor
insulation
Checking the
isulation
resistance
More than 2MΩ when the
voltage is 500V
Relief valve Checking the
sensitivity of the
action
In condition of rated pressure,
it can discharge when the
discharging ring of the relief
valve is pulled with a force
less than 1 kg and the
sundries are cleared off.
Pressures of
automatic
stop and
automatic
start up
Checking the
sensitivity of the
action
Stop pressure and start-up
pressure are in normal
condition .
Cooler
Maintenance and
cleaning
Clean the surface dirt in the
way of blowing
Indicator of
the oil level
indicator
Checking the
clarity
Replace it when the oil level is
fuzzy .
Belt and
pulley
Checking the
firmness or
replacement
Extrude the center of the belt
with the thumb to make sure
it is 10 to 15 mm and with no
damage.
Checking
Items
Day Week Month Half
Year
A
Year
Two
Years
Working content
Maintenance cycle
Remarks
NOTES: “
“ refers to parts that are maintained by users, “ “ refers to parts that are entrusted
to service center . “ ” refers to parts that must be replaced after the new machine running
continuously for 500 hours, then replace them after 3000 hours’ work. The maintenance parts
are those whose working time are less than 6000 hours .
PROCESSING METHOD OF LONG TERM SHUTDOWN
EQUIPMENT SHOULD BE SEALED IF IT IS SHUTDOWN FOR A LONG PERIOD OF TIME
a) Clean the equipment and spread some anti-rust oil on the parts which are easy to rust.
b) Electric equipment such as: motor control panel, all valves, tables, indicators, etc. shall be wrapped up with
plastic paper or oil paper.
c) The water in the oil cooler (gas and oil barrel), gas cooler and air storage tank shall be all discharged.
d) Covering all the equipment with plastic paper or some other similar materials.
e) Transportation fixed screw should be locked if the transfer storage space is changed,
To restart the sealed air compressor, the motor insulation resistance should be measured first (No less than 1
MΩ). If the air compressor has been sealed for more than a year the lubricant should be replaced.
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