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● Direct the exhaust of the tool away from any bystanders or cover the exhaust with a
shop rag.
● Run the tool until the oil has completely passed through the unit.
The best lubrication techniques include both methods.
What Conditions Indicate the Need for Maintenance?
Pneumatic tools will exhibit several distinct signs that maintenance is required. Higher
costs can be avoided if maintenance is performed when the first signs are evident. The
following list details conditions that may indicate the necessity for service.
1) A reduction in power may indicate the necessity for maintenance.
2) Should the tool not maintain a uniform operating frequency, servicing may be
required.
The Common Wear Items
The Piston. Measure the large diameter of the piston at the center and each end.
When this difference becomes 0.0015 inches or more, then the efficiency of the
chipping hammer is reduced to the point where one should replace the piston.
This covers all of the predictable wear that can occur within the tool. Other factors due
to environment, level of treatment/care and air supply quality can cause other forms of
wear that are unpredictable.
For More Information
1) General Industry Safety & Health Regulations 29 CFR, Part 1910 and where
applicable Construction Industry Safety & Health Regulations 29 CFR, Part 1926
available from Superintendent of Documents, Gov't. Printing Office, Washington, D.C.
20402.
2) Safety Code For Portable Air Tools, ANSI B186.1, B7.1 and Z87.1, available from
American National Standards Institute, Inc. 1430 Broadway, New York, NY 10018
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