Finish Thompson A101991-3 Motor Adapter 56C Frame
This is the factory motor adapter 56c frame for Finish Thompson KC5.5, KC6, KC6H, KC7, KC8 and KC10 magnetic drive pumps and MSKC multistage pumps. It bolts the pump to a NEMA 56C motor and sets the axial position of the drive magnet relative to the barrier.
It is one of the parts worth renewing on schedule instead of waiting for a fault. Adapters are replaced when mounting faces or threads are damaged, and a distorted adapter puts the magnet at the wrong depth, which costs torque and wears the barrier. Check the pump build before ordering, because these pumps are offered in more than one material and size combination and the alternatives look similar on the shelf.
Key Features
- Motor Adapter 56C Frame built to the original factory specification
- Machined for NEMA 56C motor frames
- Sets the magnet to barrier spacing that the coupling depends on
- Sized and finished to drop straight into the position it came from
- Inexpensive component whose failure takes the whole pump out of service
Applications
- Finish Thompson KC5.5, KC6, KC6H, KC7, KC8 and KC10 magnetic drive pumps and MSKC multistage pumps
- Close coupling a KC or MSKC pump to a 56C motor
- Repair after impact damage or a seized motor shaft
- Scheduled overhaul and annual inspection of the pump
- Repair of a pump taken out of service after a leak or a loss of performance
Specifications
- Brand: Finish Thompson
- Manufacturer Part Number: A101991-3
- Part Type: Motor Adapter 56C Frame
- Position: Between the motor face and the pump
- Fits: Finish Thompson KC5.5, KC6, KC6H, KC7, KC8 and KC10 magnetic drive pumps and MSKC multistage pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: Should anything else be replaced at the same time?
Whatever the teardown exposes. Elastomers and bushings are inexpensive and are best renewed while the pump is already apart.
Q: What causes most premature failures on this part?
Running the pump outside what it was specified for, whether that is temperature, viscosity, dry running or an incompatible chemical.
Q: Does fitting this affect the pump warranty?
Using the factory part keeps the pump to its original specification, which is what any warranty position depends on.
Q: How should the pump be flushed before service?
With a fluid known to be compatible, so the parts can be handled safely and the old chemical is not carried into the rebuild.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct motor adapter before you order.