Pentair HYDROMATIC HTS50 Serie Manual De Operacion, Instalacion Y Piezas página 3

The pump motor housing contains a special lubricating oil.
Keep oil clean and free of water at all times.
NOTICE: Whenever motor cover is being removed for
service, remove oil and replace with new oil at reassembly.
Use only oil listed in parts list (Part No. U197-8A). When
filling with new oil, DO NOT overfill. To allow room for
expansion, oil level with cold motor should be about 1/4'' (6
mm) above top of motor assembly.
Impeller and Seal Replacement
Risk of electrical shock. Disconnect
electrical power before doing any service work on pump!
Refer to assembly drawing.
Disassembly
1. Unscrew hex-head cap screws, remove motor assembly
from volute and set it on its side in a clean area.
2. Remove oil plug. Turn pump upside down to drain oil.
3. Hold impeller; remove impeller nut and washer.
4. Unscrew impeller (turn counter-clockwise) for cleaning.
5. Loosen cord nut and gently pull cord assembly out from
motor cover. Disconnect wires from cord set (wires and
connector are color coded for reassembly).
6. Unfasten socket head screws holding motor cover to seal
plate and remove motor cover.
7. Remove rotating half of seal off of shaft.
8. Cradle motor assembly so that it stands vertically with
motor shaft extending out of the bottom.
9. Remove through bolts from motor assembly. Remove
motor and shaft from seal plate.
10. Working from back of seal plate, tap primary seal head
out of seal plate; thoroughly clean seat cavity.
Re-assembly
NOTICE: Make sure that seal faces are clean and
undamaged. Apply Permatex #2 or equivalent sparingly to
outside edge of seal body (with spring) Figure 1.
1. Press new seal body into cavity in seal plate (Figure 1).
Impeller side of seal plate
Permatex
here
1
Figure
WARNING
Risk of electrical shock.
Can burn or kill.
Do not lift pump by
power cord.
Impeller side of seal plate
Permatex Press seal
here into cavity
Slide ceramic
part onto
Press seal
shaft.
into cavity
Capacitor
CORD LIFT WARNING
2. Reinstall motor and shaft to seal plate using the four
through bolts removed in step 10 under "Disassembly".
NOTICE: Do not overtighten through bolts!
3. Slide new rotating half of seal onto shaft (Figure 2).
NOTICE: Do not nick or scratch the silicon carbide seal
face when passing it over shaft shoulder. Seal faces
must be clean and undamaged or seal may leak.
Slide ceramic
part onto
shaft.
Figure 2
4. Reassemble impeller, washer, and impeller nut.
5. Inspect O-Ring carefully; replace if damaged. If it is not
nicked or scratched, clean and reinstall.
NOTICE: It is good practice to replace O-Ring each time
pump is serviced.
6. Reconnect motor wires to connector. Reference color
code markings.
7. Fill motor with clean dielectric oil (Part No. U197-8A). To
allow room for expansion, oil level with cold motor should
be about 1/4'' (6 mm) above top of motor assembly.
Cord Connections
Green
Don't damage
Green
rubber ring
Black
on groove
Red
Red White
Green
Black
Red
Leads From
Stator
1. Attempting to lift or support pump by
power cord can damage cord and cord
connections.
2. Cord may pull apart, exposing bare wires
with possibility of fire or electrical shock.
3. Lifting or supporting pump by power cord
will void warranty.
4. Use lifting ring or handle on top of
pump for all lifting/lowering of pump.
Disconnect power to pump before doing
any work on pump or attempting to
remove pump from sump.
032 0893
3
Don't damage
rubber ring
on groove
Install washer,
White
then clip.
Black
White
Black
Motor leads
Motor Leads
HT7 only
1308 1094
Install washer,
then clip.
033 0893