Harbor Freight Tools 91793 manual Operation

Models: 91793

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Operation

Operation

Steel Extension (14)

 

NOTE: This pump is designed for use with petroleum based grease only. Do not use this pump for oil or other low-viscosity fluids, water-based materials, gasoline or other flammable liquids, or corrosive compounds. Do not use any materials which may damage the steel, iron, brass or nitrile rubber which make up the mecha- nism of this pump.

NOTE: On first use, you will have to pump

several times until grease has filled the pump mechanism and the rubber hose. Point the Steel Extension (14) and Coupler (12) into an appropriate waste recep- tacle while pumping until grease is expelled from the Coupler (12).

WARNING: Never point the Steel Extension and Coupler toward any person or animal while pumping. Expelled grease under high pressure may cause severe injury.

NOTE: In the unlikely event that you are unable to get the grease to flow, it is likely that there is air trapped in the grease which is interfering with the action of the pump. To remedy this, open the Air Bleeder (16) by turning it counter clockwise a few turns by hand. Do not remove the Air Bleeder (16) from the pump. With the Air Bleeder (16) open, pump the handle until grease is expelled from the Air Bleeder (16). Close the Air Bleeder (16) by turning it by hand clockwise, until hand tight. Do not overtighten.

1.To operate the pump, attach the Coupler (12) to the grease fitting of the equipment being serviced. Hold the Coupler (12) in a straight line with the grease fitting on the machine, and ensure that the Coupler (12) is securely fastened.

2.Place one foot onto the Foot Rest (11), and pump the Lever Handle (1). Grease will flow from the pump into the machine being serviced. When the machine is full, grease will begin to escape from the overflow port on the machine. When you observe this, stop pumping.

3.To disconnect the Coupler (12), slightly tilt, twist and pull it off the grease fitting.

Grease Pump with

Drum Cover removed

SKU 91793

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Harbor Freight Tools 91793 manual Operation