C、The Maintenance Of Machine Consumable Parts - Baldor BD Series User Manual

BALDOR AIR COMPRESSOR
c. The maintenance of machine consumable parts
1 replacement of oil-air separator filter core
When the compressor oil consumption increases greatly, check whether blocking of the oil filter ，
pipeline, return pipeline and then clean them. Oil-air separator has degraded generally if oil consumption is
still big, which should be changed in time. Should replace oil-air separator filter core when it's both ends
pressure differential is 0.15M Pa. There is fault with the filter core or air is in short circuit situation when
the pressure differential is 0, at this time, should also replace the filter core. Changing steps are as follows:
General replacing time is 3000 to 4000 hours. The time will be shortened if in poor environment. The
replacement steps are as follows:
external type machine
（1）
a Stop the compressor, close the air exit, open the discharging water valve, and make sure system no
、
pressure.
b、Replace new product after removing the oil-air separator.
（2）internal type machine
a、 Stop the compressor, close the air exit, open the discharging water valve, and make sure system no
pressure.
b、 Disconnect the line above the oil barrel, and disconnect the pipe line from the pressure maintaining
valve exit to the post-cooler at the same time.
c、 Remove the return line.
d、 Remove the fixed bolts of the oil barrel cover and then remove the oil barrel cover.
e、 Take off the oil-air separator and change a new one.
f、 Install it with the reverse order.
Attention
Notice the electrostatic releasing when replacing the oil-air separator. Connect the inner metal nets and
the oil barrel shell to prevent electrostatic cumulating cause explosion. At the same time, prevent dirty
items falling into the oil barrel so as to affect the compressor operating.
2 replace oil filter
Change the oil filter in time when oil filter need maintenance, or the oil filter blocking light turns on, or
contrast is more than 1.5 Kg. If does not change in time, it may cause the machine stopping because the
temperature is too high. The more important thing is that the main bearing will be seriously wearing and
shorten its life. When install the new oil filter, paint some oil on the washer, spin to the right place, and then
manually tighten 3/4 ring. After replacement, check whether there's oil leakage.
3 clean air filter
Usually should change the filter core when operate 1500h, at most 2000 hours, or the negative pressure is
greater than 0.63 Kg, or air filter is blocked. In the dust place, changing period should be shortening and
pay attention to the cleaning maintenance of the filter core at ordinary times. Replace the filter core should
stop the machine, so it is suggested to change a new one or an already cleaned spare one to reduce pausing
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