Viking Pump LS1224A

Refer to TSM for specific model series

Adjust end clearance as per TSM guidelines

Measure the running clearance between rotor teeth and head

Is the clearance within acceptable range?

Ensure all safety measures are in place before opening any Viking pump liquid chamber

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

Insert brass or plastic bar through port opening between rotor teeth or lock coupling end of shaft to keep shaft from turning

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

Remove brass or plastic bar from port opening

Loosen the two setscrews in the face of the bearing housing and remove the bearing housing assembly from the bracket

Remove pair of half round rings under the inner spacer collar from the shaft (K, KK, LQ, LL, LS Sizes ONLY)

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 all pressure in the chamber is 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.

Mark valve and head before disassembly to ensure proper reassembly.

Measure and record length of extension of adjusting screw.

Ensure the pump is turned off and isolated from the power source.

Gather necessary tools and materials, including a hand grease gun and multi-purpose grease, NLGI #2.

Apply grease to the following lubrication fittings

Is the grease compatible with the grease used by Viking?

Clean any excess grease from the fittings and surrounding areas.

Is the lubrication process completed for all fittings?