WORKMASTER GO-A8-PW Operator's Manual page 31

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IMPORTANT
8.
After the parts have been cleaned, inspected or, when needed, replaced,
they should be wiped down with lightweight spindle oil or the air tool oil
used in the Lubricator. The addition of the oil leaves a rust or moisture
preventive film on the parts.
9.
The REAR PACKING (43) and FRONT PACKING (44) should be
inspected for wear and distortion.
CAUTION
10.
The TWIN HAMMER MECHANISM of the Impactor is a highly effective
design that delivers more power per pound and is less sensitive to air
pressure fluctuations than any other design. Two Hammers strike
instantaneous balanced blows to the Anvil's lobes generating powerful
torque with minimal vibration.
To maintain this smooth balanced blow, particular attention must be
given to the inspection of striking faces of both HAMMERS (33) and to
the ANVIL's LOBES (36). If chipped or flattened surfaces are detected
on either of the Hammers or the Anvil's lobes replace both the Hammers
and the Anvil. The use of worn Hammers with a new Anvil, or vice-versa,
will cause rapid wear of the new part.
New Rotor Blades should also be lightly lapped
before installing in Rotor to ensure that the Blades
will move freely in the rotor slots.
It is good practice to replace the Blades each time
the Impactor is disassembled for maintenance or
repair. Routine replacement avoids the high cost
of downtime caused by tool breakdown.
It is good practice to replace the Front and Rear
Packing each time the Impactor is disassembled for
maintenance or repair.
26

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