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To tighten the lock nut, press the shaft lock firmly so that
the spindle cannot revolve, then use the lock nut wrench
and securely tighten clockwise.
To remove the wheel, follow the installation procedure in
reverse.
Installing or removing diamond wheel
(optional accessory)
CAUTION:
• Always install the wheel guard before installing the
diamond wheel.
• When mounting the wheel ensure that the arrow
(indicating the direction of rotation) on the wheel is
pointing in the same direction as the arrow for
rotation provided on the tool.
For model 9556NB, mount the inner flange onto the spin-
dle so that the side of the inner flange with the 20mm
diameter protrusion faces the diamond wheel. Place the
diamond wheel onto the inner flange making sure the
protrusion fits into the arbor of the wheel. Use the lock
nut to secure the wheel by placing it on the spindle so
that the flat side faces the wheel and screw the lock nut
onto the spindle. To tighten the lock nut, press the shaft
lock firmly so that the spindle cannot revolve, then use
the lock nut wrench and securely tighten clockwise.
For models 9557NB and 9558NB, mount the inner flange
onto the spindle so that the side of the inner flange with
the 7/8" diameter protrusion faces the diamond wheel.
Place the diamond wheel onto the inner flange making
sure the protrusion fits into the arbor of the wheel. Use
the lock nut to secure the wheel by placing it on the spin-
dle so that the flat side faces the wheel and screw the
lock nut onto the spindle. To tighten the lock nut, press
the shaft lock firmly so that the spindle cannot revolve,
then use the lock nut wrench and securely tighten clock-
wise.
Installing or removing flex wheel
(optional accessory)
WARNING:
• Always use supplied guard when flex wheel is on
tool. Wheel can shatter during use and guard helps
to reduce chances of personal injury.
Follow instructions for depressed center grinding wheel/
Multi-disc but also use plastic pad over wheel. See order
of assembly on accessories page in this manual.
Installing or removing abrasive disc
(optional accessory)
NOTE:
• Use sander accessories specified in this manual.
These must be purchased separately.
Mount the rubber pad onto the spindle. Fit the disc on the
rubber pad and screw the lock nut onto the spindle. To
tighten the lock nut, press the shaft lock firmly so that the
spindle cannot revolve, then use the lock nut wrench and
securely tighten clockwise.
To remove the disc, follow the installation procedure in
reverse.
1. Lock nut wrench
2. Shaft lock
1. Lock nut
2. Diamond wheel
3. Inner flange
4. Spindle
2
1
005917
006336
20mm
9556NB
4
1
2
3
1. Lock nut
2. Diamond wheel
3. Inner flange
4. Spindle
1. Lock nut
2. Flex wheel
3. Plastic pad
4. Inner flange
1. Lock nut
2. Abrasive disc
3. Rubber pad
006338
7/8"
9557NB/9558NB
1
2
3
4
1
2
3
4
005832
1
3
2
005833