FLOJET 4325 Series User manual

“Quad II Diaphragm”
Models4325 Series
Automatic Washdown Pump
FEATURES
• Self-Priming
• Dry Running
• Soft, Noise Absorbing Mounts
• Corrosion Resistant Materials
• Models Meet U.S.C.G. Electric Standards
• Thermally Protected
• A.C. Models Have 6’ Power Cord
SPECIFICATIONS
Motor: Permanent Magnet, Ball Bearings at Front &
Rear Endbell. CE Models are fully suppressed.
Pump: Four chamber positive displacement
diaphragm design; Self-priming up to 10 ft.
suction lift; Pump able to run dry without
damage; Removable port to hose connectors.
(Available on 12 & 24V d.c. Models and 230V a.c. Model)
With pump intake connected to supply tank or through
hull fitting, and operation switch off, open outlet valve,
then turn pump switch on. Water will begin to flow, when
water is free of air turn valve off. When valve is shut off
pump will stop. Should pump fail to stop, turn switch off
and see the trouble shooting guide.
For portable use we recommend the pump be mounted
on a base (i.e. 3/4” x 8” x 10” board or plywood), add a
length of cable with alligator clips for battery connection
or plug the 1 15V ac and 230V ac Models into a G.F.I.
protected electrical outlet.
OPERATION
Pump Series Dimensions - Inches (mm) Weight
Height Width Length lb. (kg)
4325-XXX 3.75 (95) 6.3 (160) 9.9 (252) 6.0(2.8)
AMP DRAW FLOW PRESSURE SWITCH PRESSURE
MODEL VOLTS @ 10 psi (0.7 bar) GPM (1/min) MAX psi (bar) STRAINER NOZZLE
4325-143A 12V dc 6.0 4.5 (17) 40 (2.8) Yes No
4325-143L 12V dc 6.0 4.5 (17) 40 (2.8) Yes Yes
4325-343A 24V dc 2.5 4.5 (17) 40 (2.8) Yes No
4325-343L 24V dc 2.5 4.5 (17) 40 (2.8) Yes Yes
4325-443A 32V dc 2.0 4.5 (17) 40 (2.8) Yes No
4325-043A 115V ac 0.5 4.5 (17) 40 (2.8) Yes No
4325-243A 230V ac 0.3 4.5 (17) 40 (2.8) Yes No
* CE fully suppressed models are identified by a prefix “R” and a CE mark on the label. (i.e. R4325-143L).
Self Declaration Of Conformance (SDOC) is available upon request.
Model 4325 Series

STEP 1
Remove shipping plugs from Quad pump ports. Some
water from factory testing may spill out.
STEP 2
Install inlet A and discharge B port connectors. Firmly
push slide clips C forward to lock port connectors in
place.
STEP 3
Slide rubber mounts D fully into 4 mounting tracks.
STEP 4
Mount pump vertically, with pump head down or
horizontally in an accessible location. If mounting
vertically, motor up, attach motor mounts first, then
pump head mounts while supporting weight of pump.
STEP 5
Use 3/4” or 5/8” I.D. flexible hose (preferably braided or
reinforced). Use hose clamps on the slip-on barb hose
connectors.
STEP 6
Install a 40 mesh in line strainer in accessible location
between tank and pump inlet.
INSTALLATION
STEP 1
Use 14 gauge stranded wire to 20’, 12 gauge to 50’,
from power source.
STEP 2
Use a 15 amp rated on-off switch on the (+) positive (red)
motor lead.
STEP 3
Install fuse protection in the positive lead. 12V use
15 amp fuse, 24V use 7 amp fuse, 32V use 5 amp fuse.
NOTE: The 115 Volt model may be plugged directly into
a 115V a.c. electrical outlet. A G.F.I. (ground fault interruption)
outlet and switched circuit is required near water.
D.C. WIRING
(+)Red (+)
Fuse
Switch
Battery
(–)
Black (–)
Flojet
Washdown Pump
Fresh Water
Tank Flojet Inlet
Strainer
Thru Deck
Fitting
Seacock
"Y" Valve
B
D
A
C

DISASSEMBLE
Pressure Switch
1. Remove switch (9). Disconnect switch wires.
Upper Housing
2. Loosen but do not remove four pump head screws and
carefully remove upper housing assembly (1)
3 Inspect check valve (2) for debris
4. Reassemble new upper housing (1)
Check Valve Assembly
Follow step 2
3. Replace check valve (2)
4. Reassemble upper housing (1)
Lower Housing, Diaphragm, Motor
Follow step 2, then slide rubber foot from mounting track.
3. Rotate lower housing (4) so mounting notch opening on lower
housing exposes set screw which holds bearing housing to
shaft.
4. Loosen this set screw by inserting wrench 1/8” Allen wrench
into mounting notch opening. Then, slide lower housing (4) off
motor shaft.
Diaphragm Cont’d
5. Loosen four cam piston screws with Phillips head screw
driver and pull apart cam from inner pistons. (Pistons should
always be replaced when a new diaphragm is installed.)
Motor Cont’d
5. Replace Motor
REASSEMBLE
Motor
1. Reassemble lower housing assembly (4) to motor. (Follow
steps 4 to 10.)
Diaphragm
2. Lower housing is assembled with:
• Flat side of diaphragm and outer pistons facing motor
• Hex stem of inner pistons must be aligned into hex holes in
outer pistons (4).
• Outer pistons must be aligned with alignment slots on cam
assembly making sum screw holes align in cam assembly,
otherwise diaphragm will leak.
3. Tighten cam piston screws partially, center piston in
diaphragm, then tighten screws securely (18 in. lbs. torque)
Lower Housing
4. Reassemble lower housing assembly (4) to motor.
5. Retighten set screw securely. Set screw head must be
positioned facing motor covering seam (indentation).
(Positioning of this screw is critical to avoid misalignment and
subsequent diaphragm damage.)
Upper Housing, Check Valve
6. Reassemble upper housing (1)
7. Properly seat O-Ring in check valve assembly (2) and check
if fe rules and screen a. in place on upper housing (1)
8. Install check valve (2) into upper housing (1) and push in.
9. Assemble on to lower housing (4), align 4 screws on to motor
by rotating lower housing (4) if necessary to align feet
10. Tighten screws evenly to 30 in. lbs. torque.
Pressure Switch
1. Place switch against front of pump (9), insert screws and take
care not to cross thread or strip out threads in housing.
2. Reconnect wires.
TROUBLESHOOTING
WARNING: BEFORE SERVICING PUMP, TURN OFF PUMP AND DRAIN WATER FROM SYSTEM!!
Failure to Prime - Motor operates, but no pump discharge
• Restricted intake or discharge line
• Air leak in intake line
• Debris in pump
• Punctured pump diaphragm (pump leaks)
• Crack in pump housing
Motor falls to turn on
• Loose wiring connection
• Pump circuit has no power
• Blown fuse
• Pressure switch failure
• Defective motor
• Open thermal protector
Pulsating Flow - Pump cycles on and off
• Restricted pump delivery. Check discharge lines, fittings and
valves for clogging or undersizing.
Pump Falls to Turn Off After All Fixtures Are Closed
• Empty water tank
• Insufficient voltage to pump (low battery)
• Punctured pump diaphragm (pump leaks)
• Discharge line leak
• Defective pressure switch
Low Flow and Pressure
• Air leak at pump intake
• Accumulation of debris inside pump and plumbing
• Worn pump bearing (excessive noise)
• Punctured pump diaphragm (pump leaks)
• Defective motor
21
4 7 Includes items 1 thru 49 6
3 5
Quite often when a pump is worn or defective the one failed component has overburdened others. To avoid frequent aggravating
repairs, Flojet offers service kit assemblies making repairs as quick and easy as possible.

Pump Series Strainer Number Inlet Outlet Screen
STRAINER 4325-XXX 1740-000 3/4 Barb 3/4 Barb 40 Mesh
PRESSURE NOZZLE 4325-XXX 20446-000 3/4 GH — —
STRAINERS
ACCESSORIES
20381-000
QUAD PORT x
1/2" MALE QEST.
STRAIGHT
20381-002
QUAD PORT x
1/2" HOSE BARB
STRAIGHT
20381-000
QUAD PORT x
3/4" HOSE BARB
STRAIGHT
20381-000
QUAD PORT x
GARDEN HOSE
ADAPTOR
20381-000
QUAD PORT x
1/2" MALE QEST.
90°ELBOW
20381-000
QUAD PORT x
3/4" HOSE BARB
90°ELBOW
QUICK CONNECT PORT SYSTEM
UNITED KINGDOM
Jabsco/Flojet
Bingley Road, Hoddesdon
Hertfordshire EN11 OBU
Tel: [phone]
Fax: [phone]
CANADA
Fluid Products Canada
55 Royal Road
Guelph, Ontario N1H 1T1
Tel: [phone]
Fax: [phone]
JAPAN
NHK Jabsco Company Ltd.
3-21-10, Shin-Yokohama
Kohoku-Ku, Yokohama, 222
Tel: [phone]
Fax: [phone]
U.S.A.
Flojet
20 Icon
Foothill Ranch, CA 92610-3000
Tel: [phone]
Fax: [phone]
GERMANY
Jabsco GmbH
Oststrasse 28
22844 Norderstedt
Tel: [phone]
Fax: [phone]
10/11180-00018:mroFdevreseRsthgiRllA.A.S.UnidetnirP1002thgirypoC©
WASHDOWN PUMP SERVICE PARTS
WARRANTY
FLOJET warrants this product to be free of defects in material
and/or workmanship for a period of two years after purchase by
the customer from FLOJET. During this two year warranty period,
FLOJET will at its option, at no charge to the customer, repair or
replace this product if found defective in material or workmanship,
with a new or reconditioned product, but not to include costs of
removal or installation.
This is only an overview of our limited warranty. If you would like a
copy of our warranty, please call or write FLOJET.
RETURN PROCEDURE
Prior to returning any product to FLOJET, call customer service for
an authorization number. This number must be written on the
outside of the shipping package. Place a note inside the pack-
age with an explanation regarding the reason for return as well
as the authorization number. Include your name, address and
phone number.
MODEL#
KEY# DESCRIPTION 4325-143 4325-343 4325-443 4325-043 4325-243
340-90402340-90402340-90402340-90402340-90402*tiKecivreS0
1 Upper Housing With Clips 20404-003 20404-003 20404-003 20404-003 20404-003
030-70402030-70402030-70402030-70402030-70402ylbmessAevlaVkcehC2
3 Diaphragm Assembly (includes screws) 20403-040 20403-040 20403-040 20403-040 20403-040
4 Lower Housing Assembly 20419-002 20419-002 20419-002 20419-002 20419-002
——A620-9402A720-9102A080-9002srotoM5
———A720-9102RA080-9002RsledoMECsrotoM
Motor 115 Volt a.c./230 Volt a.c. — — — 2029-091A 2039-087A
600-18302600-18302600-18302600-18302600-18302)riap(braB4/3-stroP6
A200-60402A200-60402A200-60402A200-60402A200-60402ylbmessAdaeHpmuP7
000-80402000-80402000-80402000-80402000-80402)riap(spilCediS8
9 Pressure Switch Assembly 02090-118 02090-118 02090-118 02090-118 02090-118
*Service Kit includes #2, #3, #8 and drive cam assembly.
The above part numbers are packaged with 2 fittings per bag.