Adjustments - Foley United ACCU-Pro 670 Assembly And Service Manual

ADJUSTMENTS

TO REPLACE THE LINEAR ACTUATOR BEARINGS
NOTE: Do not remove the linear actuator from the drive
shaft. Only remove the bearings from the actuator block.
1. Crank the horizontal handwheel until the carriage is
all the way forward (toward the operator position).
2. Turn the actuator release lever 1/2 turn clockwise
to release the linear actuator bearings from the
drive shaft. Slide the actuator release lever out
of actuator bar assembly by loosening the retainer
shaft collar, which preloads the holding spring.
See FIG. 18A and 18B.
3. Remove the feed screw guide two mounting screws
and slide the grinding head assembly back. Lift the
rubber splash guard to expose the actuator mounting
screw (FIG. 17) on the top side of the carriage base.
Remove the mounting screw, to disconnect the linear
actuator from the carriage. Slide the carriage
assembly to one side.
4. Disconnect the shaft seal plate (FIG. 17) from each
side of the linear actuator. Slide the seals down the
drive shaft until they are out of the way. (If the optional
carriage bellows were installed, the shaft seals may
already have been removed).
5. Remove the shoulder bolts holding the six bearings
(three on each side) to the actuator block. Remove
the old bearings and discard them, but save the inside
washers and shoulder bolts.
Inspect the hole from which the bearing and shoulder
bolt were removed, for foreign matter. Clean
thoroughly.
6. Wipe the drive shaft clean and dry.
If oil is left on the drive shaft, the pulling
force may have to be set too high in the
following procedure. This will shorten
the bearing life.
7. Insert the shoulder bolts through the new bearings
and through the inside washers (saved in Step 6).
Then install the complete bearing assemblies into the
actuator block and tighten the shoulder bolts.
Be very careful not to cross-thread the
bearing bolts!
Reinstall the shaft seal plates if applicable. Be sure
the seal plates are mounted concentric to the drive
shaft.
Drive Shaft
Seal Plate
Actuator Engaged
Actuator Released
16
Actuator Mounting
Screw (under the rubber
splash guard)
Actuator Bar Assembly
Linear Actuator
Actuator Release Lever
FIG. 17
FIG. 18A
FIG. 18B