Viking Pump M124A

Did the idler slide off the idler pin during removal?

Is there moderate wear on the idler bushing or idler pin?

Replace idler bushing and idler pin if moderate wear is detected

Ensure idler does not slide off the idler pin during head removal to prevent injury or damage

Ensure pressure in the chamber has been completely vented

Ensure the driving means has been locked out or made non-operational

Verify knowledge of the liquid handled by the pump and obtain MSDS

Loosen the two set screws in the outer face of the bearing housing

Rotate the bearing housing clockwise until it cannot be turned anymore

Mark the outside diameter of the bearing housing and the pump bracket

Make another mark on the pump bracket as per Table 4 on page 14

Ensure all necessary tools and materials are available, including lubricant and press.

Add a chamfer on the bushing and the mating part.

Ensure the bushing is started straight.

Do not stop pressing operation until bushing is in proper position.

Check bushing for cracks after installation.

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

Ensure the driving means has been 'locked out' or made non-operational.

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.

End Clearance Adjustment Procedure

Refer to TSM for specific model series procedure on adjusting end clearance.

Has the end clearance been successfully adjusted?

Verify improvement in pump performance after adjustment.

Acknowledge understanding of safety information

Make initial packing adjustments carefully

Is the packing gland adjusted correctly?

Inspect for need of packing gland adjustment or replacement

Contact Viking Pump® representative if needed