Nidec SUNVS4, Руководство пользователя

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Hazardous suction
can trap hair or body
parts, causing severe injury or death. Do not
block suction.
B. Remove ring and cover assembly by
turning counterclockwise. If necessary, tap
handles gently with a rubber mallet.
C. Remove basket and clean. Inspect holes
in basket for blockage. Clean basket with
water and replace in basket housing. Do
not hit basket to clean. Verify basket is
oriented correctly in housing.
D. Clean and inspect lid o-ring; reinstall ring
and cover assembly.
E. Prime pump (see priming instructions).
DRAINING PUMP
To avoid dangerous
or fatal electrical
shock hazard, turn OFF power to motor
before draining pump. Disconnect power
at its source, lock out the power, and place
a tag on the dedicated GFCI circuit breaker
indicating the power is to remain off.
A. Close suction discharge valves to
isolate pump.
B. Drain the basket housing and pump
housing through the drain plugs.
C. Be sure motor is kept dry and covered.
STORAGE/WINTERIZING
Explosion hazard.
Purging the system
with compressed air can cause components
to explode, with risk of severe injury or
death to anyone nearby. Use only a low
pressure (below 5 psi), high volume blower
for purging the pump, fi lter, or piping.
Allowing pump
to freeze will damage
pump and void warranty!
Use only non-toxic
anti-freeze. Do not
use automotive antifreeze. It is highly
toxic and may damage plastic components
in the system.
PUMP SERVICE
If the pump mechanical seal (reference
numbers 8a and 8b on page 9) starts leaking
replace it immediately to avoid damage to
motor or other components. Pump should
only be serviced by qualifi ed personnel. Use
only our factory parts.
BEFORE REMOVING CLAMP ON BASKET
HOUSING:
• STOP PUMP ELECTRICALLY: Disconnect
the power at its source, lock out
the power, and place a tage on
the dedicated GFCI circuit breaker
indicating the power is to remain OFF.
• CLOSE GATE VALVES in suction and
discharge pipes.
• RELEASE ALL PRESSURE from pump
and piping system. Refer to the fi lter
manual for method.
• NEVER tighten or loosen clamp while
pump is operating!
To avoid dangerous
or fatal electrical shock
hazard, turn OFF and lock out power to
motor before working on pump or motor.
REPAIR
DISASSEMBLY
1. Disconnect power at its source, lock
out the power, and place a tag on the
dedicated GFCI circuit breaker indicating
the power is to remain OFF.
2. Drain pump by removing drain plugs on
bottom of pump body and basket body.
3. Disconnect electrical connections at motor.
4. Remove six knobs holding seal plate to
pump body.
5. Slide motor/seal plate assembly out of the
back of the pump.
6. Remove three screws holding diffuser to
seal plate.
7. Remove motor shaft cover on rear of
motor on all models except 59923-XXXX
as you can fi t a screw driver in the hole
without removing back cover. (see Figure
4). Use a wrench or a large screw driver to
stop motor shaft rotation.
8. Remove screw from center of impeller.
The threads are reversed. Turn clockwise
to loosen screw (Figure 5).
9. Then grasp impeller and rotate counter-
clockwise to remove impeller from shaft.
10. Pull mechanical seal rotating assembly
from motor shaft.
11. With a screw driver carefully pry old
stationary seat from seal plate (see
Figure 7). DO NOT SCRATCH SEAL BORE.
12. If shaft is corroded or dirty motor will
need to be removed from seal plate so
that the shaft can be effectively cleaned.
13. If necessary use a 9/16 socket with a 6
inch extension to remove four screws
holding motor to seal plate. If seal has
been leaking for a long time the motor
bearing may be compromised, if excessive
corrosion or shaft end play can be
detected motor will need to be replaced.
REASSEMBLY
1. Obtain a new mechanical seal rotating
assembly and seat (reference numbers
8a and 8b on page 11). Seal parts must
be replaced as a set. Do not mix old
and new parts. Lubricate seal stationary
o-ring with a very small amount of dish
soap. Do not allow soap, dirt, grease, or
any contaminate on the polished seal
face (see Figure 8). Install seal with 2
dimples toward motor or seal will fail.
Maintenance
(Cont.)
6
Mechanical Seal
Stationary
(#8a on p. 11)
Figure 7
Figure 4
Figure 6
Mechanical
Seal Rotating
Assembly
(# 8b on p.11)
Impeller screw -
To loosen, turn
screw clockwise
(#4 on p.11)
Figure 5
Owner’s Manual