Instruction/ maintenance manual of the product 91222 Harbor Freight Tools
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4” ANGLE GRINDER ASSEMBL Y & OPERA TING INSTR UCTIONS 91222 3491 Mission Oaks Blvd., Camarillo , CA 93011 Visit our W eb site at http://www .harborfreight.
SKU 91222 Page 2 GENERAL SAFETY RULES W ARNING! READ AND UNDERST AND ALL INSTR UCTIONS Failure to follow all instructions listed below may result in electric shock, fire , and/or serious injury . SA VE THESE INSTRUCTIONS THANK Y OU for choosing a HARBOR FREIGHT T OOLS product.
SKU 91222 Page 3 6. A v oid body contact with gr ounded surfaces such as pipes, radiators, rang es, and refrigerators. There is an increased risk of electr ic shoc k if y our body is grounded. 7. Do not expose po wer tools to rain or wet conditions. W ater enter ing a pow er tool will increase the risk of electric shock.
SKU 91222 Page 4 SPECIFIC SAFETY RULES 1. Always use proper guard with grinding wheel. A guard protects the operator from broken wheel fragments. 2. Accessories must be rated for at least the speed recommended on the tool warning label.
SKU 91222 Page 5 9. Use onl y 4” diameter Grinding Wheels (not included) having a 7 / 8 ” center mounting hole. Never disable or modify the Wheel Guard. 10. A v oid unintentional star ting. Make sure y ou are prepared to begin wor k bef ore tur ning on this tool.
SKU 91222 Page 6 GROUNDED T OOLS: T OOLS WITH THREE PRONG PLUGS 1 . T ools mar k ed with “Grounding Required” hav e a three wire cord and three prong grounding plug.
SKU 91222 Page 7 EXTENSION CORDS 1. Grounded tools require a three wire extension cord. 2. As the distance from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage.
SKU 91222 Page 8 UNP A CKING When unpacking, chec k to make sure the f ollowing par ts are included. All sizes listed below are appro ximate. If any par ts are missing or broken, please call Harbor F reight T ools at the number on the cover of this manual.
SKU 91222 Page 9 Handle The grinder comes with a SIDE HANDLE (#29) which can be screwed into either side of the grinder . (refer to Figure 1.) Figure 1 — Attaching Side Handle Installing Wheels W arning: Always disconnect from power source before adding or removing accessories.
SKU 91222 Page 10 Removing Wheels Step 1: Depress the LOCK PIN (#12) and turn the GRINDING WHEEL counterclockwise until the LOCK PIN engages. (See Figure 3). Figure 3 — Removing Wheels Step 2: Using the WRENCH, loosen the WHEEL NUT by turning it counterclockwise.
SKU 91222 Page 11 Starting the Grinder W ARNING: Ensure the GRINDER is not locked ON before plugging it in. Check the SLIDE SWITCH (#19) and make sure it is in the OFF position before plugging it into the power source.
SKU 91222 Page 12 MAINTENANCE W ARNING: DO NOT DISASSEMBLE. This tool should be serviced by a qualified technician only . Incorrect reassembly can result in electric shock, fire, or further damage to the tool.
SKU 91222 Page 13 P ARTS LIST Item # Description Q ty Item # Description Q ty 1 Wheel Nut 1 16 Ball Bearing 1 2 Grinding Wheel 1 17 S tator 1 3 Reversible Inner Flange 1 18 Housing 1 4 Wheel Guard 1 1.
SKU 91222 Page 14 Assembly Diagram-Exploded View.
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