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MOUNTING PLATE
If the hammer has been overstressed due to improper operation or installed on too large
a carrier, the mounting bracket may develop a fatigue crack.
EXAMPLE OF REPAIRING A CRACKED PLATE
1. Drill 3/16” (5 mm) hole through the bracket at the end of the crack to prevent further
crack propagation.
2. Grind out the crack and weld as shown. Use AWS E7016 or equivalent welding rod.
3a. For plate sizes up to 3/4” (20 mm) thick, use this weld joint:
3b. For plate sizes over 3/4” (20 mm) thick, use this weld joint:
4. Grind weld flush as shown. 22 is the direction of grinding, 23 is the direction of
principal stress.
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