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© Copyright 2003, ITT Industries

Printed in U.S.A.

All Rights Reserved

Form: 81000-363

02/03

WARRANTY  

FLOJET warrants this product to be free of defects in material and/or
workmanship for a period of one year after purchase by the customer
from FLOJET. During this one year warranty period, FLOJET will at its
option, at no charge to the customer, repair or replace this product if
found defective, with a new or reconditioned product, but not to
include costs of removal or installation. No product will be accepted
for return without a return material authorization number. All return
goods must be shipped with transportation charges prepaid. This is
only a summary of our Limited Warranty. For a copy of our complete
warranty, please request Form No. 100-101.

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 package with an
explanation regarding the reason for return as well as the
authorization number. Include your name, address and phone number.

TROUBLESHOOTING CHART

Symptom

Possible Cause(s)

Corrective Action

Pump will Pump will not start (stalls)

1. Inadequate air supply (20 PSI Min.)

1. Increase air inlet pressure

2. Contaminated air supply

2. An air dryer might be required

3. Ruptured diaphragm (2)

3. Replace diaphragm (2)

4. Check spool valve for wear 

4. Replace spool valve if necessary

Pump runs, but no fluid

1. A leak or break in the product 

1. Replace product line

inlet line

2. A leak or break in the product 

2. Replace product line

discharge line

Pump leaks through exhaust port

1. Leak at upper exhaust port o-ring 

1. Replace exhaust port 

2. Inadequate slide lubrication

2. Replace with spool valve kit

Flow rate is low

1. Tubing or hose is damaged or 

1. Clean or replace

blocked

2. Check viscosity of medium 

2. Reduce viscosity of medium, 

being pumped

increase hose diameter or contact
factory for recommendation

3. Check valves not seated correctly (1) 3. Reinstall check valves (1)

Pump leaks

1. Ruptured or worn out diaphragm (2) 1. Replace diaphragm (2)
2. Pump housing screws not torqued 

2. Torque screws to 20 in lb

adequately

UNITED KINGDOM
Flojet, Unit 1, Avant Business Centre
Denbigh West Industrial Estate
Milton Keynes, Bucks, England MK1 1DL
Tel: 44 1908 370088
Fax: 44 1908 373731

CANADA
Fluid Products Canada
55 Royal Road
Guelph, Ontario N1H 1T1
Tel: (519) 821-1900
Fax: (519) 821-2569

JAPAN
NHK Jabsco Company Ltd.
3-21-10, Shin-Yokohama
Kohoku-Ku, Yokohama, 222
Tel: 045-475-8906
Fax: 045-475-8908

U.S.A.
Flojet
20 Icon
Foothill Ranch, CA 92610-3000
Tel: (949) 859-4945
Fax: (949) 859-1153

GERMANY
Jabsco GmbH
Oststrasse 28
22844 Norderstedt
Tel: +49-40-53 53 73-0
Fax: +49-40-53 53 73-11

Summary of Contents for N5100 Series

Page 1: ...industrial applications These pumps are constructed from a selection of materials for handling a broad range of chemicals Allowed fluids for Not Allowed fluids for Santoprene materials Santoprene materials Potable Water Oils Solvents Soaps with Alkaline Soaps Solvents D Limonene Acids Alcohols Ketones Aromatic Hydrocarbons Allowed fluids for Buna Not Allowed fluids for Viton materials Buna Viton m...

Page 2: ... and pressure can be adjusted by increasing or decreasing gas pressure to accommodate varying product viscosities length of lines or other installation conditions Review flow curves located on page 1 for further assistance High viscosity fluids and hose length will limit priming distance IF PUMP IS T0 BE USED IN HIGH FLOW LOW PRESSURE APPLICATIONS ADJUST GAS PRESSURE TO 20 PSI 1 38 BAR ABOVE DISCH...

Page 3: ...ump until torsion springs snap inward and lock into place Reconnect exhaust hose to muffler fitting CAUTION if exhaust hose is not reconnected to muffler fitting pump will not operate Position new body gasket and the two O rings and press pump body together Reinsert gas in fitting discharge and suction fitting into pump and slide retainer clips over fittings until they snap into place This will he...

Page 4: ...pressure 2 Contaminated air supply 2 An air dryer might be required 3 Ruptured diaphragm 2 3 Replace diaphragm 2 4 Check spool valve for wear 4 Replace spool valve if necessary Pump runs but no fluid 1 A leak or break in the product 1 Replace product line inlet line 2 A leak or break in the product 2 Replace product line discharge line Pump leaks through exhaust port 1 Leak at upper exhaust port o...

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