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8 Air Hammer Operator's Manual
Maintenance
Operation
LUBRICATION:
An automatic in-line filter-regulator-lubricator is recommended as it increases tool life
and keeps the tool in sustained operation. The in-line lubricator should be regularly
checked and filled with John Deere AT-4003 air tool oil. Proper adjustment of the in-
line lubricator is performed by placing a sheet of paper next to the exhaust ports and
holding the throttle open approximately 30 seconds. The lubricator is properly set when
a light stain of oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time
(overnight, weekend, etc.), it should receive a generous amount of lubrication at that
time. The tool should be run for approximately 30 seconds to ensure oil has been
evenly distributed throughout the tool. The tool should be stored in a clean and dry
environment.
Recommended lubricants: Use John Deere AT-4003 air tool oil or any other high
grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents
and an EP (extreme pressure) additive.
PRE-OPERATION:
Before the tool is connected to the air supply, clear the air hose of accumulated dust
and moisture. Before removing a tool for service or changing accessories, make sure
the air line is shut-off and drained of air. This will prevent the tool from operating if the
throttle is accidently engaged.
OPERATION:
CAUTION: NEVER OPERATE HAMMER WITHOUT A CHISEL
INSTALLED AND PLACED AGAINST THE WORK
SURFACE. DOING SO MAY RESULT IN PERSONAL
INJURY OR DAMAGE TO THE TOOL.
USING QUICK CHANGE RETAINER:
1. Disconnect air supply and remove all accessories.
2. Thread quick change chisel retainer onto end of barrel.
3. While pushing end of spring to side of tool, insert a standard .401" taper shank
chisel into barrel and allow spring tension to rest against chisel. Make sure chisel
collar is between barrel and retaining part of spring.
4. Remove chisel by pushing spring to side of tool and pull chisel out of barrel.
5. Always hold chisel to work surface before operating tool.
Place chisel against work surface and pull trigger in short bursts until chisel sets
in work. Use both hands to hold hammer for better control.