Maintenance
3A4586E
17
Models 25C416 - 25C419, 25C776 - 25C779
Uninstall the Pump
1.
Turn off the motor.
2.
Disconnect the motor from the power source and
detach the ground wire from the lower unit.
3.
Remove the fluid hose from the pump.
4.
Remove the pump from container.
5.
Carry the pump to the bench for service.
Disassemble the Pump
NOTE: If removal of any part requires use of a tool for
gripping, use only non-marring tools.
1.
Remove motor by unthreading the motor nut (110).
2.
Using a flat-blade screwdriver, remove the snap ring
(111) from the motor nut (110) and remove both
from the inner tube (103) flange area.
3.
Loosen the tri-clamp connector (109).
4.
Pull the inner tube assembly (103) out of the outer
tube (101).
5.
Grasp the impeller (108) with one hand and the
motor coupling (112) with the other hand. Unscrew
the motor coupling or impeller from the drive shaft
(104).
•
If the motor coupling unscrews, retain the two
bearings (107), bearing spacer (106) and seal
(105) for re-use.
•
If the impeller unscrews, retain the o-ring (116)
for re-use.
6.
Remove the drive shaft (104).
7.
Remove The guide sleeve (114) from the drive shaft
(104) or out of the inner tube assembly (103).
8.
Remove the remaining attached items on the impel-
ler end, or drive end, of the drive shaft. Retain all
parts for re-use.
9.
Remove o-ring (117), spacer (115), and bushing
(113) from the inner tube (103).
10. Clean and inspect all components. Replace any
damaged components.
Moving parts can pinch, cut or amputate fingers and
other body parts. Keep your hands and fingers away
from the pump inlet during operation and whenever the
pump is connected to a power source. Disconnect
power before moving.
