Harbor Freight Tools HEAVY-DUTY 1/2" VSR DRILL 3273 - Manual (Page 12)

Page 12 For technical questions, please call 1-800-444-3353. ITEM 3273
Maintenance and Servicing
Procedures not specifically explained in this manual must
be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Make sure that the Power Switch/Trigger is in the off-position and unplug the tool
from its electrical outlet before performing any procedure in this section.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise or vibration
occurs, have the problem corrected before further use.
Cleaning, Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the general
condition of the tool. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• damaged cord/electrical wiring,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
3. WARNING! If the supply cord of this
power tool is damaged, it must be replaced
only by a qualified service technician.
Chuck (1) Replacement
1. Release the Trigger and unplug the
tool from its electrical outlet.
2. Open the Chuck jaws fully.
3. Remove the Chuck Screw (44) inside the
Chuck Jaws by turning it counterclockwise.
4. Switch the Direction Switch to the reverse direction.
Plug the Power Cord into a suitable outlet.
5. Hold the Chuck ring with a gloved hand and
gently squeeze the trigger with your other hand.
6. The Chuck should come off in your gloved hand.
7. Install the new Chuck by reversing the above steps.
Carbon Brush Service
If the Carbon Brushes are damaged or worn, they must be replaced by a qualified service
technician. Improper service may result in the double insulation system being compromised.
SAFETY
OPERA
TION
MAINTENANCE
SETUP