Flotec FP2521 Manual Del Propietário página 9

Maintenance
Air Valve Replacement
1. Follow steps 1 through 5 under "Vinyl Bag Removal".
2. Cut valve off as close to tank as possible. Push re-
maining portion back into tank.
3. Tip tank on end and BE SURE all water is drained
from bag.
4. Carefully remove bag ring from lip on tank opening
and push bag ring back into tank; reach in around it
and remove cut off portion of valve from tank.
5. Wipe a thin film of soapy solution on replacement
valve and from inside tank insert in hole in top of
tank.
6. Pull valve through hole with pliers or a valve tool
(available at your local filling station or Automotive
Center).
7. Follow steps 14 through 20 under "Vinyl Bag Re-
moval" to reinstall bag in tank.
Testing for Bag Leakage
1. Follow steps 1 through 4 under "Vinyl Bag Removal".
2. Tip tank on end, valve down. Be careful not to break
valve!
3. If bag leaks, water will run out of valve. If so, replace
bag as instructed above.
DISASSEMBLY AND
ASSEMBLY OF PUMP
Risk of electric shock . Ground unit and dis-
connect power before attempting any work on pump or
motor .
Your pump is designed for ease in servicing. Should repair
or replacement of the motor or seal be needed, the pump
and piping do not need to be disconnected or disturbed.
1. Disassemble pump as follows:
A. Disconnect power.
B. Drain pump by opening drain cock. Remove pres-
sure switch tubing from fitting on top of pump.
To avoid serious injury, release all
pressure from system before attempting to remove
clamp from pump .
C. Remove clamp.
D. Remove pump base mounting bolts. Motor
assembly and back half assembly of pump can be
pulled away from front half.
E. Remove "O" rings.
For parts or assistance, call Flotec Customer Service at 800-365-6832
2. Reassembly of pump.
A. Clean "O" rings and "O" ring grooves.
B. Lubricate "O" rings with petroleum jelly, and place
in grooves.
C. Slide pump halves together.
D. Clean inside of clamp. Place clamp around pump
halves. Alternately tighten clamp screw and tap
clamp around outside with plastic mallet. This will
insure proper seating of "O" ring and clamp.
E. Assemble base mounting bolts. Connect pressure
switch tubing and close drain cock.
F. Prime pump and turn on power.
G. Check for leaks.
Removing Motor for Service and Replacing
Shaft Seal
If it is necessary to separate motor and seal plate, always
replace the shaft seal. We suggest you purchase this item,
U109-6A, and have it on hand for future use.
NOTICE: The seal consists of two parts, a rotating member
and a ceramic seat. The surfaces of the seal are easily
damaged. Read instructions carefully.
1. Disassemble pump per instructions above.
2. Remove diffuser and impeller as follows.
A. Remove screws holding diffuser.
B. Loosen two screws and remove motor canopy from
motor.
C. Place 7/16" open end wrench on motor shaft flat.
D. Turn impeller counterclockwise when facing it.
3. Remove pump back half from motor by unscrewing
four (4) nuts. Pry back half off motor by inserting two
(2) screwdrivers between the back pump half and the
motor flange. This will force rotating portion of seal
off shaft. See Figure 9.
Figure 9
9
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