Harbor Freight Tools 94944 operating instructions INSPECTION, MAINTENANCE, and Cleaning

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INSPECTION, MAINTENANCE, AND CLEANING

1.WARNING! Always disconnect the Rotary Hammer from its electrical power supply source before performing any inspection, maintenance, or cleaning procedure.

2.Before each use, inspect the general condition of the Rotary Hammer. Inspect switch, power plug and cord assembly, and extension cord (if used) for damage. Check for loose screws, misalignment, binding of moving parts, broken, cracked, or improper mounting of the chisels. If abnormal noise or vibration occurs, turn off the Rotary Hammer immediately and have the problem corrected before further use. Do not use damaged equipment!

Replacing the Carbon Brushes (105) Replacing the Carbon Brushes (105)

NOTE: The Rotary Hammer Has a red LED located on the handle that will light up when the Carbon Brushes (105) are worn down and need to be replaced. See Figure 5 below.

To replace the Carbon Brushes (105) you must first remove the four screws that attach the Left Tail Cover (96) and the four screws that attach the Right Tail Cover (91). See Page 13. Next remove each Carbon Brush (105) by gently pulling on the wire that it is connected to. Disconnect the Carbon Brush connector and insert the new brushes by bushing them into the Brush House (104). After both Carbon Brushes (105) are inserted, attach the Carbon Brush connector, the Left Tail Cover (96) and the Right Tail Cover (91). See Figure 5 below.

Left Tail Cover Left

LED Light

Figure 5

SKU 94944

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Contents Rotary Hammer Save this Manual Product SpecificationsGeneral Safety Rules Work AreaElectrical Safety Personal SafetyTool USE and Care Grounded Tools Tools with Three Prong Plugs ServiceGrounding Figure a Double Insulated Tools Tools with TWO Prong Plugs See Figure C, and Figure D Extension CordsSee Figure C Industrial applications must follow Osha requirements SymbologySpecific Safety Rules Vibration Hazard UnpackingAssembly Instructions Operating Instructions How to attach the chisels How to turn on the Rotary Hammer Important Read before use Chipping in a straight lineBreaking up concrete Using the Rotary Hammer as a hammer drillHow to adjust the Masonry Drill 118 speed INSPECTION, MAINTENANCE, and Cleaning Problem Cause Action TroubleshootingHow to add grease to the gears Parts List Part Description QtySpeed Control Knob Assembly Diagram SKU