Ohio Medical P20-M Operation Manual - page 7
255549 (Rev.1) 02/2014
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3) Check the thickness of compression ring and guide ring periodically. Record
the data in your service log.
4) If the compressor has not run for a long time, it should be set on no-load
running for at least 30 minutes per month to keep the bearings and related
parts in regulator running condition.
7.3 Key points during Disassembly and Assembling:
1) Before disassembly, be sure to turn off the power and release the pressure of
air tank to ensure safety.
2) After disassembly, place the parts in order on a clean box or paper to enable
re-assembly later.
3) While assembling, pay attention to the cleanness of environment and working
tools, especially for those parts like piston, compression ring, guide ring,
cylinder and valve assembly. Avoid dust and contamination of these parts.
4) Pay attention to the direction of compression ring and guide ring . If not, the air
delivery will be decreased.
5) The bearing is totally enclosed with heat resistant grease. If there is abnormal
noise, please contact local service agent for service.
6) While assembling, be sure to tighten the screws, nuts and related parts
properly.
7) After disassembly, the liner (the liner on the cylinder head and the cylinder)
should be replaced with a new one and then re-assembled.