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27
RELIEF GRINDING CONTINUED
Close the front and rear doors.
Turn the Spin Motor Switch on.
NOTE: The spin drive will apply torque load against
the fingers.
Set the Relief Torque Potentiometer at approximately
15. IMPORTANT: Free turning reels may need a lower
value than 15 and stiff reels or reels with a drive train
may need a higher torque than 15.
Engage the traverse belt and traverse all the way to
the left watching for proper clearance between the
grinding wheel and the blade. Check for proper
clearance between the index finger (after releasing
from blade at far left position) and the front side of the
blade on the return trip to the home
position. Also verify
clearance to the reel blade support spiders. If
necessary the forward stop can be adjusted.
See FIG 25.
Stop the traverse in home
position and check for a
proper blade index. The traverse drive control is
factory set with a two second dwell time before it
reverses the carriage travel. This is to allow time for
the reel to rotate and the index finger to catch the next
blade. If necessary the dwell time can be adjusted
(refer to Control Board Potentiometer Adjustments
section in the Assembly and Service Manual).
Turn on the Spin Drive Motor (should already be on)
and the Grinding Wheel Motor switch.
Turn the traverse speed potentiometer to proper
grinding speed. Slowly infeed the grinding wheel until
you are able to grind the full length of the reel evenly. A
typical infeed is between .010" to .020" [.25-.50 mm].
Be sure you have ground all the blades before
infeeding further.
NOTE: Traverse speed should be set to
approximately 15 fpm. If you are removing a small
amount of stock on initial infeeds, faster traverse
speeds are suggested. If you are removing a large
amount of stock on later infeeds, slower traverse
speed may be required.
After the relief grind is complete remove turn all
switches to off (it is also good practice to push in the
E-stop button) then remove cutting unit from the
machine. Use caution as the reel blades will be sharp.
OPERATING INSTRUCTIONS (Continued)