FG5000/FG10000 Flywheel Grinder
Copyright © 2018, by Irontite Products Inc.
16
800-553-5953
All Rights Reserved Rev. 181102
RECESSED FLYWHEELS:
When grinding recessed
flywheels, the depth dimension from the pressure plate
mounting surface to the clutch friction surface should be
restored after grinding of the friction surface. This is done by
grinding the pressure plate mounting surface an amount equal
to that ground off the friction surface. The steps followed in
grinding recessed flywheels are as follows:
a. Mount flywheel on machine.
b. If original equipment specs are unavailable, use a depth
micrometer to measure depth from pressure plate
mounting surface to an unworn area of the clutch friction
surface.
c. Grind friction surface to clean up.
d. Use depth micrometer again to measure new depth.
Subtract original depth from this measurement to obtain
amount to be removed from pressure plate mounting
surface.
e. Locate dial indicator on pressure plate mounting
surface, set dial to zero.
f. Grind surface until dial indicator reading changes by the
proper amount.
While a dial indicator or a depth micrometer is used to
measure a specific amount of material, the graduated dial
(Figure 24 – Power Column and Figure 25 – Manual Machine)
will give the operator an
approximate
amount of material
removal. The readings of this dial will be influenced by both
stock removal and wheel wear.
RADIUS CUTTER OPERATION
(
OPTIONAL
)
Before grinding the flywheel or cutting a radius on a recessed
flywheel, make certain the flywheel is accurately centered. A
dial indicator may be used. It is not necessary to use coolant
when using the radius cutter
1. On certain applications on a recessed or stepped flywheel
such as International, Mack, etc., it is necessary to remove
the slight radius left by the grinding wheel. This can be
accomplished using the optional Radius Cutter (Figure 26).
2. First, adjust the radius cutter assembly so the cutting tip of
the tool bit is positioned over the center of the table. This
can be done by loosening the 3 hex bolts that attach the
radius cutter to the machine (Figure 26A) and sliding the
assembly to the front or back and retighten.
3. The tool bar may be positioned to the correct depth by loosening the 2 cap screws (Figure 26B) and
sliding the bar up or down and retighten. When properly positioned, the grinding wheel will be about
1/2” above the highest point of the flywheel when the tool bit is in contact with the radius to be
removed. Do not over extend the tool bar.
4. Loosen the column lock handle. Swing the grinding head to the left side of the flywheel, so the tip of
the tool bit is at its outermost location. Gradually feed the grinding head down until the radius is
removed.
Figure 24 - Power Column
Figure 26
A
B
Figure 25 - Manual Machine
