Delta Environmental Products DE50 Serie Manual De Instrucciones página 4

Impeller, Seal, and Capacitor Replacement
– DE50, DE50H, DE100, DS50H Series
Risk of electrical shock. Disconnect electri-
cal power before doing any service work on pump!
Refer to assembly drawings on Page 7.
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.
Risk of electric shock. Before touching
capacitor, discharge it by shorting the terminals
together with an amber handled screwdriver.
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. If replacing capacitor, remove wires from capacitor.
Remove capacitor.
8. Remove rotating half of seal off of shaft.
9. Cradle motor assembly so that it stands vertically with
motor shaft extending out of the bottom.
10. Remove through bolts from motor assembly. Remove
motor and shaft from seal plate.
11. 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 undam-
aged. 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
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!
WARNING
Risk of electrical shock.
Can burn or kill.
Do not lift pump by
power cord.
Press seal
into cavity
CORD LIFT WARNING
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. Install new capacitor. See below for electrical connec-
tions to capacitor.
6. 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.
7. Reinstall capacitor cover, feeding wire through connector
hole, then reconnect cord wires to connector. Reference
color code markings.
8. 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.
Capacitor Connections
Green
Black
Capacitor
Red
Black
Leads from
Leads From
Stator 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.
4
Don't damage
rubber ring
on groove
Green
White
Red
White
Green
Red
Motor leads
Motor Leads
HT7 only
HT7 l
Black
White
Black