Viking Pump Q1224A

Select the oil type based on temperature conditions

Enter the current lubricant level in the reducer

Is the lubricant level within the specified range for the selected reducer size?

Fill to proper level with the correct type and quantity of oil if necessary

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.

Did the idler slide off the idler pin during removal?

Is the idler bushing showing moderate wear?

Is the idler pin showing moderate wear?

Replace idler bushing if necessary

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

Lock out or make non-operational the driving means to prevent starting during maintenance.

Identify the liquid handled by the pump and understand necessary safety precautions. Obtain and review the MSDS for the liquid.

Removal: Cartridge Mechanical Seal

Insert brass or plastic bar through port opening between rotor teeth to prevent shaft from turning.

Bend up tang of lockwasher and remove locknut and lockwasher from shaft using a spanner wrench.

Loosen two set screws in the face of the bearing housing and remove the bearing housing assembly from the bracket.

Remove the pair of half round rings under the inner spacer collar from the shaft (AK, AL, K, KK, L, LQ, LL, LS sizes only).