POWER MAX II INSTRUCTION MANUAL
PAGE 5 -
Troubleshooting
Problem: Grinder bit has become stuck onto the motor shaft
Solution 1: Loosen set screws and push the bit as far down the shaft as possible. Most
often the shaft above where the bit was mounted crusts with glass debris, coolant, hard
water residue, etc. Using a small piece of fine steel wool or scrubby, polish the end of the
shaft all the way down to where the bit rests.
Solution 2: If you can push the bit down as above, but you notice that there is a burr or scar
on the round side of the motor shaft caused by the set screw in the wrong position (it appears
as a small ring cut into the shaft), you will need to polish it out. This can often be done by
using the same steel wool mentioned above, but occasionally it requires stronger abrasives.
Be very careful here! You only want to remove the scar, you do not want to make the shaft
smaller. It may be necessary to use very fine grit emery cloth or sandpaper here. But again,
be very careful, the motor shaft can be easily damaged. Once the scar is polished out,
remove the bit. Clean both the bit and shaft and use lubricant. Never tighten the bit to the
round side of the motor shaft.
Solution 3: If the bit is still stuck, use a plumbers helper or vice grip to remove the bit. If further
assistance is necessary, call DTI toll free at (800) 937-9593 for tech support or to obtain a
Return Authorization Number and further instructions to send your machine in for repair.
Additional Parts and Accessories
ITEM
ITEM NUMBER
WORK SURFACE GRID
289
UNIVERSAL FACE SHIELD
DM0750
STEP-UP WORK SURFACE
DM0720
EASY-ON FOOTSWITCH
FS0420
MAX SPLASH GUARD
P203
GRINDER MOTOR 110V/220V
P216/P216A
GRINDER CAPACITOR 110V/220V
P221/P221A
SUPER SPONGE REPLACEMENTS
66SUPER
1/4” FAST BIT
GH0230
1/4” STANDARD BIT
GH0600
3/4” FAST BIT
GH0360
3/4” STANDARD BIT
GH0350
1” FAST BIT
GH0290
1” STANDARD BIT
GH0410
ANGLED BIT
GH0300
REDUCING BIT
GH0310
