Page 14
09/19/16
Patriot
®
180
HAMMER ASSEMBLY CONTINUED
•
Place the hammer horizontally on a hammer stand and secure with a vise.
CAUTION
THE ACCEPTABLE CLAMPING AREAS START 10" (254 MM) FROM EITHER CASE END,
TO AN ADDITIONAL 5" (127 MM) BEYOND THIS POINT. PLACING THE CHAIN VISE ON
THE AREA OF THE CASE WHERE THE PISTON CYCLES CAN DISTORT THE CASE, RESTRICT
PISTON MOVEMENT AND VOID THE WARRANTY.
•
Slide the piston in the backhead end of the case. Push the piston all the way to the
chuck end. The piston should ride in the case very smoothly.
•
Using an overhead crane, stand the case up in a vertical postion with the chuck end
on the ground.
•
Using an overhead crane and a handling plug, lower the backhead / feed tube
assembly into the case. Thread the backhead / feed tube assembly into the case
until it shoulders up against the thrust washer.
•
Using an overhead crane and a handling plug, lift the hammer over the bit and chuck
assembly. Lower the hammer onto the chuck, and thread together until it shoulders
up against the thrust washer.
CAUTION
DUE TO CLOSE TOLERANCES BETWEEN THE PATRIOT 180 INTERNAL PARTS AND
THE CASE, NUMA CAN NOT 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.
