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Page 10 For technical questions, please call 1‑800‑444‑3353. SKU 68148
sure the Trigger Switch properly
actuates when pressed and that the
tool turns off when its released.
7. When work is complete,
release the Trigger Switch.
8. To prevent accidents, turn off the
tool and disconnect its power supply
after use. Clean, then store the tool
indoors out of children’s reach.
MAINTENANCE AND
SERVICING
Procedures not specically
explained in this manual
must be performed only by
a qualied technician.
NOTE: The Demolition Hammer will
cease operation once Carbon
Brushes are worn. Check
Brushes every 100 hours and,
when necessary, replace them.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Release Trigger
Switch and unplug tool from its
electrical outlet before
performing inspection,
maintenance, or cleaning.
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.
Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the
general condition of the tool. Check
for loose hardware, misalignment
or binding of moving parts, cracked
or broken parts, damaged electrical
wiring, and any other condition that
may affect its safe operation.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
3. Wipe tool with a lint-free cloth
after each use to remove all
dust and grit from the tool.
NOTE: The Demolition Hammer has an
air‑tight construction, allowing for
three months of continuous usage
before any lubrication is needed.
4. To add lubricating grease, use the Tank
Cover Wrench (91) to open the Tank
Cover (12). See Figure 1 on page 8.
5. Fill with 1/8 ounce of lubricating
grease and replace Tank Cover.
6. Examine tool before each use. Make
sure Chisel is sharp and not dull or
cracked. Replace worn or broken
Chisels with approved replacement
Chisels from Harbor Freight Tools.
7. Check that all mounting screws are
tightened. Retighten any loose screws.
8. Store in temperatures no
lower than 50-60° F.
9. WARNING! If the supply cord
of this power tool is damaged,
it must be replaced only by a
qualied service technician.
Replacing Carbon Brushes
NOTE: The Demolition Hammer will
cease operation once Carbon
Brushes are worn. Check Brushes
every 100‑120 hours and, when
necessary, replace them.
1. Use screwdriver to remove Carbon Brush
Cover (54). See Figure 1 on page 8.