Viking Positive Displacement Pump QS1124A

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 area around the pump clean and free of grease spills?

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

Obtain a 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)

Select the oil type based on temperature conditions

Oil Quantity for Each Reducer Size

Verify the oil quantity for each reducer size

Drain existing oil from the reducer

Refill with the correct type and quantity of oil

Record the lubricant level after refill

Ensure the following safety measures are in place before starting

Removal: Cartridge Mechanical Seal

Insert brass or plastic bar through port opening between rotor teeth to keep 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)

Remove any flush or barrier fluid tubes connected to the seal gland

Replace or turn centering clips to original position

Has the end clearance increased beyond acceptable limits?

Refer to TSM for specific model series and describe the adjustment procedure

Verify improved pump performance after adjustment

Record the pump pressure after adjustment