Battery Pack Insertion and Removal
Attach or remove accessories only after removing the
battery pack.
1. Ensure the switch is in the OFF position before
inserting or removing the battery pack.
2. To attach the battery, slide the battery into the foot of
the tool until it fully engages.
3. To remove, ensure the spindle is no longer moving
and hold the release button down while pulling the
battery out of the tool.
Accessory Selection
Refer to Wheel Guide chart in the back of this
instruction manual. Choose the proper guard and
flange(s).
Locking the Spindle
Do not operate the spindle lock while the tool is in use
or while the spindle is still spinning. Doing so may
damage the tool and may also cause the accessory to
come off of the spindle which may result in injury.
1. Note: The spindle and other components may be hot.
2. The spindle lock is used to prevent the spindle from
rotating while attaching or removing accessories.
3. To lock the spindle shaft, press and hold the spindle
locking button while turning the spindle until the
spindle locking button engages. Once this occurs, it
should not be possible to turn the spindle.
Mounting the Accessory
DO NOT HANDLE A HOT TOOL
1. Ensure the switch is in the OFF position and that no
battery is currently attached to the tool.
2. Remove any accessories on the tool and, if necessary,
change the guard type.
3. Check the flanges for damage before use.
4. If using a threaded or hubbed accessory, skip to the
Mounting Hubbed Accessories section. Otherwise,
mount the support flange on the spindle. Ensure the
support flange is in its proper place; it should not
rotate freely with respect to the spindle.
5. Place the accessory centered on support flange – the
grinding wheel or metal flange must lay flat on the
support surface.
6. By design, the support flange may be a tight fit to the
wheel. Some force may be necessary to remove the
accessory from the support flange.
ZCTGR8845CE Rev. A
Securing / Releasing the Clamping
Nut
Ensure the proper guard is in place for the selected
accessory.
1. The orientation of the clamping nut on the spindle is
dependent on the thickness of the wheel being used.
The centering hub of the clamping nut should face
downward for thin wheels to ensure proper clamping
force and upwards for thick wheels.
— For thin abrasive wheels 1/8" or less:
Figure 6: Clamping Nut Direction for Thin Wheels
— For abrasive wheels thicker than 1/8":
Figure 7: Clamping Nut Direction for Thick Wheels
Abrasive wheels thicker than 1/4" are not
recommended for this tool. Using wheels thicker than
recommended may cause serious injury.
2. While holding the spindle locking button, securely
tighten the clamping nut in the proper orientation by
turning it clockwise with the supplied spanner
wrench.
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