Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps - Manual (Page 62)

60
JET
PUMPS
Jet Pump Disassembly . . .
1. Turn off power to motor. Disconnect service
wires from pressure switch.
2. Drain system to relieve pressure.
3. Disconnect motor cord from pressure switch
when used.
4. Remove casing bolts. If pump is mounted
on top of tank, remove bolt holding motor
adapter to mounting pad.
5. Disconnect tubing between casing or
pressure control valve and pressure switch.
6. Remove motor, motor adapter casing, and
rotating element. Casing remains attached
to piping.
7. Remove guide vane seal ring and diaphragm
gasket ring.
8. Remove guide vane from motor adapter (via
4 bolts or may be snap in type).
9. A.O. Smith Motors – Remove motor end
cover. Insert 7 ⁄
16
" open end wrench under
switch mechanism or behind overload
protector onto flats on motor shaft.
While holding the shaft against rotating, turn
the impeller counterclockwise. The impeller
should turn completely off the shaft in this
manner.
10. Using two screwdrivers, pry out holding
collar of mechanical seal assembly.
11. Motor adapter can be unbolted from the
motor (for motor replacement).