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INSTRUCTION

TO OPERATE THE PUMP

•  Remove the shipping plug  from the air inlet hole and insert a ¼” NPT quick air  coupler of 

your choice.

•  Connect air supply line to the air coupler.

•  To activate the pump for ram extension, depress the treadle at air inlet valve end.

•  To retract ram plunger, depress treadle end marked “RELEASE”. Retraction of ram will 

stop and load will be held when pressure on treadle is removed.

AIR REMOVAL

Removing air from the hydraulic system will help the cylinder to advance and retract smoothly.

Pump with Single-Acting Cylinder 

•  Position pump at higher elevation than cylinder.

•  Position cylinder with plunger end down (up if using pull cylinder)

•  Operate pump to fully extend the cylinder (retract if using pull cylinder)

•  Depress release valve to retract cylinder (extend if a pull cylinder). This will force the 

trapped air to move up to the pump reservoir.

•  Repeat the above steps as necessary.

•  Add oil if necessary.

•  Return vent/fill cap to operating position.

TO ADD OIL TO PUMP RESERVOIR

•  Turn pump upside down and remove hex filler plug. Tip pump so the hose end is lowest 

to prevent air from entering the hydraulic system. Fill to the top with HYDRAULIC oil. 

Replace filler plug and tighten firmly.  Do not use brake fluid nor transmission oil.

BEFORE USING THE PUMP

•  Check all system fitting and connections to be sure they are tight and leak free.

•  Check oil level in reservoir before operating pump.

Содержание 840

Страница 1: ...AIR HYDRAULIC PUMP Jackco Transnational Inc 2012 South El Monte CA 888 452 2526 www jackco com INSTRUCTION MODEL 840...

Страница 2: ...fy the cylinder to attach a base or other support Avoid situations where loads are not directly centered on the cylinder plunger Off center loads produce considerable strain on cylinders and plungers...

Страница 3: ...ylinder with plunger end down up if using pull cylinder Operate pump to fully extend the cylinder retract if using pull cylinder Depress release valve to retract cylinder extend if a pull cylinder Thi...

Страница 4: ...ecommended JACKCO hydraulic oil with theses pumps to promote long pump life and protect your warranty Contact your JACKCO representative for more information on these products and their applications K...

Страница 5: ...y a qualified hydraulic technician Cylinder advance but does not hold pressure 1 Leaking connection 2 Leaking seals 3 Internal leakage in pump 1 Check that all connections are tight and leak free 2 Lo...

Страница 6: ...Model 840 Parts List...

Страница 7: ...Steelball 3 16 1 M10 Spring 1 P10 Spring 1 P37 Spring Safety Valve 1 M11 Screw 1 P11 O ring 1 P38 Spring Safety 1 M12 Plug 1 P12 Check Valve 1 P39 Spring O ring 1 M13 Spring 1 P13 O ring 1 P40 Screw...

Страница 8: ...nufacturer This warranty shall not apply to damage due to accident negligent use and lack of maintenance abuse or applications other than the specific function the equipment or tool is designed for No...

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