Harbor Freight Tools 91146 operating instructions SKU For technical questions, please call

Models: 91146

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25.Performance of this Welder may vary depending on variations in local line voltage. Extension cord usage may also affect tool performance.

26.Always turn off the Welder and unplug the unit from its electrical outlet before performing any inspection, maintenance, or cleaning procedures.

27.Use the right tool or attachment for the right job. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool or attachment. There are certain applications for which this product was designed. It will do the job better and more safely at the rate for which it was intended. Do not modify this product, and do not use this product for a purpose for which it was not intended.

28.Proper cylinder care: Secure cylinders to the Base of the Welder, a wall, or post to prevent them from falling. All cylinders should be used and stored in an upright position in a well ventilated area. Never drop or strike a cylinder. Do not use cylinders that have been dented. Cylinder caps should be used when moving or storing cylinders. Empty cylinders should be kept in specified areas and clearly marked “empty”. Never use oil or grease on any inlet connector, outlet connector, or cylinder valve. Additional specific instructions for the safe handling of cylinders should be supplied by your cylinder supplier and covered under local, state, and federal regulations governing pressurized gases.

29. WARNING! The brass components of this product contain lead, a chemical known to the State of California to cause birth defects (or other reproductive harm). (California Health & Safety code 25249.5, et seq.)

30. WARNING! This product, when used for welding, cutting, and similar applications, produces chemicals known to the State of California to cause cancer and birth defects (or other reproductive harm). (California Health & Safety code 25249.5, et seq.)

31. WARNING! People with pacemakers should consult with their physician(s) before using this product. Operation of electrical equipment in close proximity to a heart pacemaker could cause interference or failure of the pacemaker.

32. WARNING! The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

SKU 91146

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 91146 operating instructions SKU For technical questions, please call