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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
07/16/15
Champion
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RC160
•••••
Install the chuck bushing in the chuck. With the bit face down, place the chuck over
the top of the bit. Align the splines and lower the chuck completely onto the bit.
Rotate the chuck counterclockwise until the splines meet and insert the drive plates
between the chuck and bit splines. (See Figure 2-2)
•••••
Place the bit retaining rings, with the o-ring installed, over the chuck.
•••••
Place the thrust washer against the chuck thread shoulder. With the crane or lift truck
and appropriate lifting device, raise the hammer to allow clearance for the chuck.
Place the chuck beneath the hammer, thread the hammer down on the chuck
threads until flush to the thrust washer.
•••••
With the hammer in a vertical position and the bit installed, insert the collection tube.
NOTE
THE COLLECTION TUBE SHOULD BE ASSEMBLED WITH THE BIT INSTALLED IN THE
HAMMER AS THE COLLECTION TUBE, WHEN ASSEMBLED, PROTRUDES FROM THE
BOTTOM END OF THE HAMMER, 4" (102 mm).
NOTE
LUBRICATING THE OUTSIDE DIAMETER OF THE COLLECTION TUBE PRIOR TO
ASSEMBLY IS NECESSARY TO FACILITATE ASSEMBLY.
CAUTION
DUE TO CLOSE TOLERANCES BETWEEN THE CHAMPION RC160 INTERNAL PARTS
AND THE CASE, NUMA CANNOT ACCEPT RESPONSIBILITY FOR DAMAGE CAUSED
BY WELDING ON THE CASE OD. WELDING ON THE CASE CAN CREATE DISTORTION,
CAUSE PREMATURE FAILURE AND VOID THE WARRANTY. CONTACT NUMA FOR
SPECIAL INSTRUCTIONS IF WELDING THE CASE BECOMES UNAVOIDABLE.
RC160 Drive Plate Positioning as Viewed from Top
Figure 2-2