Viking Pump LL1224AE

Ensure pressure in the chamber is completely vented

Lock out or make non-operational the driving means

Identify the liquid the pump has been handling

Obtain and understand the material safety data sheet (MSDS) for the liquid

Mark valve and head for proper reassembly

Measure and record length of extension of adjusting screw

Ensure initial packing adjustment is done carefully

Is the packing gland over-tightened?

Does the inspection reveal need for packing gland adjustment?

Does the inspection reveal need for packing replacement?

Contact Viking Pump® representative for Engineering Service Bulletin ESB-521

Select the pump series for lubrication

Add grease to the bracket grease fitting until it comes out of the relief fitting on the opposite side of the bracket

Select the type of lubricant used for bracket fitting

Regrease the bearing housing until grease comes out of the shaft end lip seal

Select the type of grease used for bearing housing

Ensure safety measures before opening any Viking pump liquid chamber

Install bracket bushing if removed due to wear

Install bracket and bushing assembly on the casing

Coat shaft of rotor/shaft assembly with light oil and insert into bracket bushing

Coat idler pin with light oil and place idler and bushing on idler pin in head

Install head and idler assembly on pump using a .010 to .015 inch thick head gasket

Install the lipseal in the bearing housing

Ensure pressure in the chamber is completely vented through appropriate openings or connections.

Lock out or make non-operational the driving means (motor, turbine, engine, etc.).

Identify the liquid the pump has been handling and understand the necessary safety precautions.

Obtain and review the material safety data sheet (MSDS) for the liquid.

Carefully remove valve cap covering the adjusting screw.

Loosen locknut to allow pressure setting adjustment.

Install a pressure gauge in the discharge line.