Harbor Freight Tools 68148 User Manual - Page 10

sure the Trigger Switch properly actuates when pressed and that the tool turns off when its released. or broken parts, damaged electrical wiring, and any other condition that may affect its safe operation. 7. When work is complete, release the Trigger Switch. 2. AFTER USE, wipe external surfaces of the tool with clean cloth. 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 specifically explained in this manual must be performed only by a qualified 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 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 qualified 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. Page 10 For technical questions, please call 1-800-444-3353. SKU 68148