KSB pumps require regular checkups for any leakage, damage, wearing off of seals or pumping related issues. The suction that pulls the liquids inside the pump is a result of spinning an impeller in the liquid. Any damage to the mechanical seals can lead to leakage of liquids. Thus changing mechanical seals becomes an important step in pump repairs.
How to check the KSB pumps for damages?
You can check KSB pumps for any damages by following certain steps:
• Remove the pump from its system and clean it thoroughly
• Let the pump dry
• Inspect individual parts of the pump
• Check the shaft, rod, seals, o-rings, Teflon wedges, and related parts for any damage or malfunctioning
• Check condition of bearings, starting bevel, and alignment of seal and o-rings.
• Repair or replace the damaged parts
How to replace mechanical seals of a KSB pump?
• Remove the pump from its system and clean it thoroughly
• Let the pump dry
• Inspect individual parts of the pump
• Check the shaft, rod, seals, o-rings, Teflon wedges, and related parts for any damage or malfunctioning
• Check condition of bearings, starting bevel, and alignment of seal and o-rings.
• Repair or replace the damaged parts
Replacement of mechanical seals is a step-by-step process and requires a great deal of attention. Make sure you follow these steps aptly:
• Remove the damaged seals remembering the position of each seal. You can make markings if possible
• Bolt the stuffing box plate to the frame of the pump
• Fix a wrench onto the bolts present on the pump housing,, which holds the motor to the wet end • Install a shaft sleeve
• Make sure that the shaft is not moving. You can keep it in a position by fastening the wrench to the motor shaft behind the plastic impeller
• Now wear hand gloves or hold a rag in hands to hold the impeller
• Rotate the impeller in a counterclockwise direction off the threads of the shaft for KSB pump repair
• Remove the stuffing box plate
• To install a new mechanical seal in the pump:
• Remove the damaged seals remembering the position of each seal. You can make markings if possible
• Bolt the stuffing box plate to the frame of the pump
• Fix a wrench onto the bolts present on the pump housing,, which holds the motor to the wet end • Install a shaft sleeve
• Make sure that the shaft is not moving. You can keep it in a position by fastening the wrench to the motor shaft behind the plastic impeller
• Now wear hand gloves or hold a rag in hands to hold the impeller
• Rotate the impeller in a counterclockwise direction off the threads of the shaft for KSB pump repair
• Remove the stuffing box plate
a. Fix a gasket and a gland with stationary seal face onto the shaft of the pump.
b. Move the rotator unit present on the shaft sleeve and slide it back till it is set behind the rotary unit present on the second scribe line.
c. Remove the holding clips of the seals.
d. Fix the rotary unit in its position on the shaft sleeve with the help of screws.
e. Place the stuffing box back plate in its original place in the pump frame.
f. Put the pump impeller back on the shaft and rotate it in a clockwise direction so as to fasten it on to the threads with the help of screws.
g. You can use a new impeller gasket to fasten the impeller back on the shaft.
h. Compress the gland against the stuffing box plate.
i. Make sure that the compression is intact by checking the gap between the gland gasket and the stuffing box plate.
j. With the help of drivers, tighten the studs on the gland evenly.
k. To make sure that the seal is not in a bind, rotate the shaft.
b. Move the rotator unit present on the shaft sleeve and slide it back till it is set behind the rotary unit present on the second scribe line.
c. Remove the holding clips of the seals.
d. Fix the rotary unit in its position on the shaft sleeve with the help of screws.
e. Place the stuffing box back plate in its original place in the pump frame.
f. Put the pump impeller back on the shaft and rotate it in a clockwise direction so as to fasten it on to the threads with the help of screws.
g. You can use a new impeller gasket to fasten the impeller back on the shaft.
h. Compress the gland against the stuffing box plate.
i. Make sure that the compression is intact by checking the gap between the gland gasket and the stuffing box plate.
j. With the help of drivers, tighten the studs on the gland evenly.
k. To make sure that the seal is not in a bind, rotate the shaft.
After replacing the mechanical seals, you can complete the process of KSB pump repair by setting the wet end and motor end by each other. You can connect these two ends with the help of bolts, screws, and a wrench. Remember that for better results, pump repairs require a detail oriented approach and proper checkups during each step of replacement.
Motor and Gear Engineering, Inc is an authorized center for the repair of KSB pumps. We utilize state-of-the-art equipments, high-end technology, and our experienced personnel’s expertise to repair and test most of the major pumps. To know more about our services, kindly visit our site http://www.motorgearengineer.com or contact us on 770-454-9001.
