Roper Whitney 10M14-G, Operation Manual

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BLADE REPOSITIONING/REPLACEMENT PROCEDURE
The upper and lower blades are two edge blades that can be rotated 180° to
provide a new cutting edge. Either when rotating blades or replacing them after
regrinding, a procedure is applicable:
1. Refer to Figure 5.
2. WARNING: Turn off 3-phase incoming electrical power at the
fuse-disconnect box and turn the MAIN disconnect to OFF before performing any
blade service maintenance.
3. CAUTION: Ram must be in top rest position.
4. Set backgauge to extreme "out" position.
5. Remove holddown assembly (item 4) --
a. Remove two 5/16 x 2-1/2 socket head cap screws (item 2) at
each end of the holddown assembly, and remove the two rod
holders (item 1).
b. Remove two hex nuts (item 3) -- one at each end of the
holddown assembly (item 4).
c. Thread a lifting-eye (3/8-16 thread) into the center of the
holddown assembly, (item 4). Using an overhead or portable
lift crane gently lift holddown assembly upward off
of rods
and set safely aside. The upper blade area is now exposed
for servicing.
6. Remove and reposition upper blade (item 7) --
a. Use blocks of wood between upper blade and table blade
(one piece at each end) to prevent blade from dropping.
b. Remove all blade bolts (21 each, item 8) from upper blade
(item 7) by working from ends to the center.
CAUTION: Wear gloves when handling blades and use care to prevent damage to
blades. Avoid all contact with all other materials except wood when blades are
removed from shear.
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