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26
RELIEF GRINDING CONTINUED
Reset the Traverse Limit Proximity Switch so the
grinding wheel clears the reel at both ends by
approximately 1/16" [1.5 mm].
Set Grind Selector switch to variable torque relief.
(IMPORTANT: The Spin Drive Rotation switch must be
in the OFF position when changing the Grind Selector
switch.) Set the Spin Drive Rotation switch to rotate the
reel into the stop finger, counterclockwise (CCW) when
looking at the right side. NOTE: Relief torque reel rotation
is always opposite spin rotation. DO NOT TURN ON THE
SPIN MOTOR SWITCH.
With the traverse in the home
position (right side traverse
proximity sensor lit), infeed the grinding relief wheel up
while manually rotating the reel until the index finger
touches the blade.
Turn the traverse speed potentiometer to zero, then turn
the traverse drive motor on. With the belt drive disengaged,
manually move the Relief Grinding Assembly to the left
until the reel blade is on the fixed relief finger.
At this point, if necessary, you can adjust the relief angle
by adjusting the relief finger position. To make this
adjustment loosen the Relief Angle Adjustment handle.
See FIG 24. Rotating the finger system down will increase
the relief angle and rotating the finger system up will de-
crease the relief angle. Adjusting the relief angle or index
finger stop position is easiest with the relief head at the
left side of the reel.
Once you have the Grinding Head positioned with a reel
blade resting on the Fixed Relief Finger high point, adjust
the indexing finger stop. There should be about 1/32"
[.8mm] to 1/16" [1.5mm] free play of the Index Finger to
the back of the blade. The Index Finger is spring loaded
to the up position or against the back of the reel blade. To
check free play, push down on the Index Finger.
See FIG 24. If there is no free play of the Index Finger you
want to rotate the Adjustable Index Finger Stop Position
Knob counter clockwise. If there is more than 1/16" [1.5
mm] free play you want to rotate the Index Finger Stop
Position Knob clockwise.
IMPORTANT: The Index Finger position must be set to
stop the reel blade and allow traversing to the left without
the blade hitting the side of the relief finger. This position
must also allow approximately 1/32" [.8 mm] free play of
the index finger when the blade is resting on the high point
of the relief finger. See FIG. 24.
Infeed the grinding wheel up until there is minimal
clearance between the reel blade and the grinding wheel.
FIG 24.
OPERATING INSTRUCTIONS (Continued)
RELIEF ANGLE
ADJUSTMENT
HANDLE
WHEEL DIAMETER
ADJUSTMENT
HANDLE
INDEX FINGER
STOP POSITION
KNOB
FIXED FINGER
MOVABLE
INDEXING
FINGER
INDEX STOP
PIN
INDEX FINGER
FORWARD STOP
POSITION
SETSCREW
FIG 25.