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 to variable torque relief. (
NOTE:
The
Spin Drive Rotation switch must be in the
OFF
position
when changing Grind Selector switch.) Set 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.
With the traverse in home (RH traverse prox lit) position,
infeed the grinding relief wheel up while manually
rotating the reel until the index finger touches the blade.
Turn the traverse speed pot to zero, then turn the traverse
drive motor on. Using the speed pot to slowly move and
stop the grinding wheel, traverse 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 by loosening the
Relief Angle Adjustment handle. See FIG 19.
Once you have the Grinding Head positioned with a reel
blade resting on the Fixed Relief Finger high point, you
want about 1/32" [.8mm] to 1/16" [1.5mm] free play of
the Index Finger behind the reel blade. The Index Finger
is spring loaded to the up position. To check free play,
push down on the Index Finger. See FIG 19. To make
this adjustment you have to first turn the Index Lock Knob
counter clockwise to unlock the adjustable Index Stop
Knob. See FIG. 19. If there is no free play of the Index
Finger you want to rotate the Adjustable Index Lever
counter clockwise. If there is more than 1/16" [1.5 mm]
free play you want to rotate the Adjustable Index Lever
clockwise. When the Index Finger is in proper position
rotate the Index Lock Knob clockwise to lock the
Adjustable Index Lever.
NOTE: 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. 19.
Continue to traverse the grinding wheel up until there is
minimal clearance between the reel blade and the
grinding wheel.
RELIEF ANGLE
ADJUSTMENT
HANDLE
WHEEL DIAMETER
ADJUSTMENT
HANDLE
INDEX FINGER
STOP POSI-
TION KNOB
FIXED FINGER
MOVABLE
INDEXING
FINGER
INDEX STOP
PIN
INDEX FINGER
STOP LOCK
KNOB
FIG 19.
OPERATING INSTRUCTIONS (Continued)
