Operator’s Manual

6
WARNING
Only use accessories with Maxi-
mum Safe Operating Speed rated
at least equal to the maximum speed marked on
the power tool. This speed is based on the
strength of the wheel, allowing for a reasonable
measure of safety. It is not meant to imply a best
or most efcient operating speed. Do not exceed
the Maximum Safe Operating Speed.
Installing/Removing Grinding Wheels
Make sure the wheel does not extend beyond the
bottom of the guard. Threaded hub grinding wheels
may require a deeper guard (see "Accessories").
1. Remove the battery pack. WARNING! Always
remove battery pack before changing or removing
accessories.
2. Properly position the guard.
3. Wipe the ange, ange nut and spindle to remove
dust and debris. Inspect the parts for damage. Re-
place if needed. Use only MILWAUKEE mounting
hardware designed for your tool.
4. Place the ange on spindle, as shown.
Gear
case
Spindle
Flange
Grinding
wheel
Flange nut
5. Place the selected wheel on the spindle and align
it with the ange.
6. Position the ange nut over the spindle according
to wheel thickness.
Flange nut
position for
1/8" thick or less wheels
1/8"
1/4"
Flange nut
position for
1/4" thick or more wheels
7. Press in the spindle lock button while turning the
ange nut clockwise. Tighten securely.
8. To remove wheel, remove the battery pack and
reverse the procedure.
Sanding Disc Selection
Use sanding discs and accessories that are:
• correct size as written on tool’s nameplate.
• rated at or above the RPM listed on the tool’s name-
plate.
• correct accessory, wheel type and grit for the job.
Select the correct type of sanding disc for your job.
Generally, use 24 or 36 grit for heavy stock removal;
50, 60, or 80 grit for medium stock removal and 120
grit for nishing. Always begin with a coarse grit, us-
ing successively ner grits to obtain the desired nish.
•Aluminum Oxide: For fast cutting, general purpose
discs for most metal jobs. Best for cold-rolled steel,
stainless steel or metals requiring tough, fast cutting,
long lasting abrasives.
•Aluminum Zirconia Bi-Cut: Unique grit pattern is
arranged in clusters for faster stock removal and
cleaning. Ideal for removing paint from cars, boats,
etc. without clogging.
•Ceramic: Lasts up to 3 times longer than Aluminum
Oxide Discs. For general metal working. Ideal for
tough jobs.
Installing Backing Pad and Sanding Discs
1. Remove the battery pack. WARNING! Always
remove battery pack before changing or removing
accessories.
2. Wipe the accessories, disc nut and spindle to
remove dust and debris. Inspect the parts for dam-
age. Replace if needed. Use only MILWAUKEE
mounting hardware designed for your tool.
3. Place tool upside down on a level surface. Remove
any accessories from spindle.
4. Slip backing pad onto spindle with at side away
from gear case.
5. Place sanding disc on backing pad and secure
assembly to spindle with disc nut.
Gear
case
Spindle
Backing
pad
Disc nut
Sanding
disc
6. Press in the spindle lock button while turning ange
nut clockwise. Tighten securely.
7. To remove backing pad and sanding disc, remove
the battery pack and reverse the procedure.