Viking Pump LQ4124A

Apply multi-purpose grease, NLGI # 2, to all lubrication fittings using a hand gun

Record any specific lubrication questions for Viking Pump® representative

Refer to Engineering Service Bulletin ESB-515 for standard grease thickener types

Is the lubrication fluid compatible with the process fluid for O-Pro™ seals?

Does the application involve very high or low temperatures?

Specify alternative lubrication type if required due to temperature conditions

Ensure initial packing adjustment is made carefully

Is the packing gland over-tightened?

Does the inspection reveal the need for packing gland adjustment?

Does the inspection reveal the need for packing replacement?

Contact Viking Pump® representative for Engineering Service Bulletin ESB-521 regarding repacking pump

Initial Bearing Housing Adjustment

Loosen the two set screws in the outer face of the bearing housing

Rotate the bearing housing in a clockwise direction until it cannot be turned any more

Make a mark on the outside diameter of the bearing housing and a corresponding mark on the pump bracket

Make another mark on the pump bracket per 'Table 4' on page 14

Final Bearing Housing Adjustment

Rotate the bearing housing in a counter clockwise direction until the mark on the outside diameter of the bearing housing lines up with the second mark on the pump bracket

If possible, check end clearance with feeler gauge between idler and rotor faces

Ensure the pump is turned off and isolated from the power supply

Gather necessary tools and materials, including Light Refrigeration Oil and a container for old oil

Place a container under the reservoir to catch the old oil

Open the drain valve and allow the old oil to completely drain out

Measure one pint of Light Refrigeration Oil

Fill the reservoir with the measured oil

Select the oil type based on temperature conditions

Verify the oil quantity for each Viking reducer size

Drain the old oil from the Viking reducer

Refill with new lubricant to the proper level

Is the oil filled to the proper level for the selected size?