Viking Pump HL4197

Warning: Ensure the pump is turned off and disconnected from power source before cleaning.

Is the pump disconnected from power source?

Upload a photo of the cleaned pump

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines, or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational, so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid.

Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

Failure to follow above listed precautionary measures may result in serious injury or death.

If a new spring is installed or if pressure setting of pressure relief valve is to be changed from that which the factory has set, the following instructions must be carefully followed.

Danger! Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) be sure:

Pressure in the chamber has been completely vented through the suction or discharge lines, or other appropriate openings or connections.

The driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational, so that it cannot be started while work is being done on pump.

You know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

When installing graphite bushings, extreme care must be taken to prevent breaking. Carbon graphite is a brittle material and easily cracked. If cracked the bushing will quickly disintegrate. Using a lubricant and adding a chamfer on the bushing and the mating part will help in installation. The additional precautions listed below must be followed for proper installation:

A press must be used for installation.

Be sure bushing is started straight.

Do not stop pressing operation until bushing is in proper position, starting and stopping will result in cracked bushing.

Check bushing for cracks after installation.

Danger! Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) be sure:

Pressure in the chamber has been completely vented through the suction or discharge lines, or other appropriate openings or connections.

The driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational, so that it cannot be started while work is being done on pump.

You know what liquid the pump has been handling and the precautions necessary to safely handle the liquid.

Upload the material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

Failure to follow above listed precautionary measures may result in serious injury or death.

Loosen two screws in face of thrust bearing assembly.

If shaft cannot be rotated freely, turn thrust bearing assembly counter clockwise until shaft cannot be turned easily.