Viking Pump HL4224B

Ensure pressure in the chamber is completely vented

Lock out or make non-operational the driving means

Identify the liquid the pump has been handling

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

Carefully remove valve cap and loosen locknut

Install a pressure gauge in the discharge line

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)

Ensure pressure in the chamber is completely vented

Lock out or make non-operational the driving means

Identify the liquid the pump has been handling

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

Mark valve and head for proper reassembly

Measure and record length of extension of adjusting screw

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

Select the pump series for lubrication

Add grease to the bracket grease fitting until it comes out of the relief fitting on the opposite side of the bracket

Select the type of lubricant used for bracket fitting

Regrease the bearing housing until grease comes out of the shaft end lip seal

Select the type of grease used for bearing housing