Xylem Goulds Water Technology Model e-SV, Vertical Multi-Stage Pumps Repair Stack - Manual (Page 3)

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REPAIR STACK INSTALLATION
1. Inspect and clean the inside of the pump body, re-
moving any debris.
2. Remove repair stack from packaging, inspect for
damage and clean, removing any tape used to hold
components together.
3. Grasp shaft of repair stack and lower into the pump
body. Center the stack within the pump body until
the first stage seats in the bottom. Push down on
stack to lock in place.
4. Replace O-ring in top groove in casing.
5. Re-install the upper seal plate and motor adapter
• For 1-22SV units place the upper seal plate squarely
on top of the pump casing and press down firmly.
The seal plate should seat firmly and the o-ring
should remain in the casing groove. Once upper
seal plate is installed the motor adapter can be
placed on top of the assembly and aligned as origi-
nally installed.
• For 33-125SV units, lift the motor adapter as-
sembly (motor adapter and top seal plate) and
place squarely on top of the pump casing, aligned
as originally installed. A crane may be required to
safely lift the motor adapter assembly.
6. Reinstall Tie Rods, Nuts, and Washers (see “Torque
Values” for appropriate tightening torque). The tie-
rod nuts should be tightened in small increments in a
diagonal pattern to ensure it seats properly. Pay close
attention to ensure that the casing o-ring remains in
the casing groove.
7. Reinstall Seal Gland or Cartridge Seal
• For 1-22SV units, remove the used stationary seal
face from the seal gland.
1. Remove the used stationary seal seat from the
seal gland.
2. With a clean cloth wipe the seal bore and inspect
for damage; replace seal gland if damaged.
3. Insert the new stationary seal seat into the seal
bore of the seal gland with the seal face out. DO
NOT scratch or damage the seal face. Ensure
that the seal is seated firmly and squarely inside
the seal bore. With a clean lint-free cloth or alco-
hol swab wipe the seal face clean of all lubricant
or debris. DO NOT use grease or heavy lubri-
cants to install seal, as these materials can cause
the seal to leak.
4. Replace o-ring on seal gland.
5. Install the rotating portion of the seal onto the
pump shaft, seating the plate fully and squarely.
6. Re-install the 4 socket head cap screws (see
“Torque Values” for appropriate tightening
torque). The screws should be tightened in small
increments in a diagonal pattern to ensure the
seal gland seats properly.
• For 33-125SV units without cartridge seal;
1. Remove the used stationary seal seat from the
seal gland.
2. With a clean cloth wipe the seal bore and inspect
for damage; replace seal gland if damaged.
3. Insert the new stationary seal seat into the seal
bore of the seal gland with the seal face out. DO
NOT scratch or damage the seal face. Ensure
that the seal is seated firmly and squarely inside
the seal bore. With a clean lint-free cloth or alco-
hol swab wipe the seal face clean of all lubricant
or debris. DO NOT use grease or heavy lubri-
cants to install seal, as these materials can cause
the seal to leak.
4. Rotate the rotary portion of the mechanical seal
on the pump shaft until it “locks” and you are
unable to turn freely. If you are unable to turn
initially, the seal is seated properly.
5. Replace o-ring on seal gland.
6. Install the seal gland onto the pump shaft, seat-
ing the plate fully and squarely.
7. Re-install the 4 socket head cap screws (see
“Torque Values” for appropriate tightening
torque). The screws should be tightened in small
increments in a diagonal pattern to ensure the
seal gland seats properly.
• For 33-125SV units with cartridge seal;
1. Replace the o-ring on the cartridge seal.
2. Slide the cartridge seal assembly along the pump
shaft into position and alignment with bolt
holes. Seat the cartridge seal squarely and firmly.
3. Re-install the 4 socket head cap screws (see
“Torque Values” for appropriate tightening
torque). The screws should be tightened in small
increments in a diagonal pattern to ensure the
seal gland seats properly.
8. Reinstall the coupling pin and locate the spacer shim
on the shaft, resting on the seal gland or cartridge
seal. If the shim is not available, a 5mm shim can be
used.
9. Lower the motor slowly onto the motor adapter and
align the motor shaft with the coupling and motor
mounting holes. Reinstall the 4 motor hex cap screws
(see "Torque Values" for appropriate tightening
torque) to secure motor to motor adapter.
10. Reinstall the coupling halves evenly to maintain a
consistent gap on either side of the coupling halves.
The coupling halves should not touch. Torque the
coupling bolts to the appropriate values defined in
“Torque Values”.
11. Remove the spacer shim and save for future use.
12. FOR 33-125SV PUMPS WITH CARTRIDGE SEAL
ONLY; tighten the 4 set screws on the shaft collar.