FRISTAM Shear Pump FSPE 3551

The shaft seal must be replaced if

– Pumping medium or sealing or quenching liquid flows out of the pump on the atmosphere side

– Sealing liquid leaks into the pumping medium

1. Dismantle the pump head. See Chapter 9.8, "Pump Head Removal" page 17

2. Replace the mechanical seal and mount the pump head. See Chapter 9.10, "Pump Head Attachment" page 19. Perform the following tasks according to the given shaft seal

– Preassemble the seals on the shaft

– Mount the pump casing on the lantern

Warning: Only use couplings approved by Fristam. The coupling must be appropriate for the characteristic curve of the pump. If you have any questions, please contact Fristam.

Motor turned off and secured from accidental turn on

Pump and motor detached from the base frame or foundation and removed

Coupling turned off in accordance with the motor manufacturer's specifications

Old coupling parts disposed of in an environmentally friendly manner

New coupling parts placed on the drive shaft and on the gear shaft

Motor placed on the base frame or the foundation and fastening screws slightly tightened

Parallel and angular misalignment of the shafts checked

Motor reached normal operating temperature

Motor turned off and secured from accidental turn on

Suitable oil collection container placed under the oil drain plug

Caution! Danger of burning from hot oil. Wear suitable protective gloves.

Oil drain plug loosened and removed

Oil completely drained and disposed of in accordance with local regulations

Oil drain plug and seal cleaned and remounted

Amount of oil filled (refer to Table 4 'Oil volumes')

Motor turned off and secured from accidental turn on

Remove the pump head. Refer to Chapter 9.8, 'Pump Head Removal' page 17

Mount the shaft and align. Refer to Chapter 9.11, 'Pump Shaft Mounting and Alignment' page 26

Only for flange connection: Check the clearance if necessary. Refer to Chapter 9.9, 'Checking of the Clearances' page 18

Replace the mechanical seal and mount the pump head. Refer to Chapter 9.10, 'Pump Head Attachment' page 19

Warning: This procedure requires trained personnel with PPE!

Bearing cap removed on the pump side

Bearing cap removed on the motor side

Shaft forced out in the direction of the pump head

Note: All parts that are gray in the above two figures remain on the shaft

Surfaces of all parts cleaned and checked for damage

Select the type of lubricant used

Pump shaft with the bearing pressed into the bearing block