9
PUMP DISASSEMBLY SEQUENCE
Warning:
Hazardous Voltage
Disconnect all power to the pump before servicing or
working on it. Make sure that the power is locked out and
that pump cannot accidentally start.
Close the suction and discharge valves nearest the pump to
isolate it from the system before starting work.
NOTE: See Table IV for torque specifications.
Step 1. Remove the screws holding the
coupling guards and remove the guards.
Step 2. Unscrew the Allen screws out of the
coupling and remove the coupling halves.
NOTE: if you are disassembling more than
one pump, be sure you do not mix the
coupling parts; each coupling is a matched
pair.
Step 3. Unscrew the four screws holding the
seal carrier and remove the carrier.
Step 4. Loosen the Allen screws holding the
seal about one-half turn. Do not remove the
screws.
Step 5. Lift the seal straight up and off the
pump shaft as shown. The cartridge seal will
come out as an assembly.
Step 6. Remove the four Allen screws
securing the motor stool to the pump head
and remove the motor and motor stool as a
unit. The stool will protect the motor shaft
from damage while it is off the pump.
Step 7. Remove the staybolt nuts and
washers from the pump head.
Step 8. Tap around the pump head with a
rubber mallet to loosen it, then remove the
pump head from the pump.
Step 9. Remove the O-ring from the pump
head with a small screwdriver.