Viking Pump L4224B

Ensure pressure in the chamber is completely vented

Lock out or make non-operational the driving means

Obtain and understand the MSDS for the liquid handled by the pump

Mark head and casing before disassembly

Remove nuts and capscrews from head

Use jack bolts to back head away from casing

Avoid damaging head gasket during removal

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.

Ensure all safety measures are in place before starting

Removal of Component 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)

Loosen nuts and remove seal holder, seal seat and seal gasket(s)

Loosen setscrews in mechanical seal rotary member

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)

Select the appropriate oil type based on temperature

Verify the oil quantity for each reducer size

Fill the reducer with the correct type and quantity of oil before start-up

Lubricant Change After 100 Hours

Drain the old lubricant after 100 hours of operation

Refill with new lubricant of the correct type and quantity