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8
INITIAL STARTUP, HAMMER BREAK-IN
New or rebuilt hammers require 20-40 minutes of operation at half the rated speed as a
break-in period. This allows for proper lubrication of all moving parts and for all sliding
surfaces to mate properly.
GENERAL OPERATING INSTRUCTIONS
1. Never apply the tool with a side load. The tool must always be pressed firmly against,
and be perpendicular to the material to be broken. Failure to do so can cause tool or
seal failure.
2. Impact action must be stopped immediately when the object has been broken.
3. Do not pry with the tool. This may cause the tool to break or cause abnormal wear to
the tool bushings.
4. Avoid continuous impact on the same area for more than one minute. Continuous
impact may cause a rapid increase in oil temperature and improper hammer operation.
5. Break large objects from the outside edges and work inward.
6. Do not submerge the hammer in water. The hammer is not watertight, and damage
can occur if used in this manner. Consult your dealer for underwater applications
(Ref. Figure 3.)
7. Do not use the hammer to move very large or heavy broken objects. This can cause
damage to the hammer and carrier.
8. Do not use the hammer as a lifting device.
9. Do not operate the hammer when boom cylinders are at their extreme ends. This may
cause damage to the cylinders.
10. Stop operation immediately if hoses vibrate abnormally or impact energy is
dramatically reduced. Consult Section 7. “Troubleshooting Diagnosis” for additional
information.
COLD WEATHER STARTUP AND OPERATION
Note: Internal parts of the hammer will be damaged if proper warm-up procedures are
not applied in cold weather.
1. Warm the hydraulic system of the carrier before starting the hammer. Circulate the
oil in carrier system until it is warm to the touch or approximately 60°F (15°C)
2. With engine at half throttle, activate the hammer for 5 seconds and stop for 15
seconds. Repeat cycle for 2 to 3 minutes.