Air Cadet 420-1901, 420-1902 Instruction Manual

OPERATING MANUAL

AIR CADET®PUMPS

MODEL NO. 420-1901

MODEL NO. 420-1902

A-1299-5102

Edition 03

Thermo Fisher Scientific

1-800-637-3739 (U.S. and Canada only)
11 [phone] (Outside U.S.) • [phone] (Local)
www.thermo.com • [e-mail]

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TABLE OF CONTENTS

Title Page

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Grounding Instructions (420-1901) . . . . . . . . . . . . . . . . . . . . . . . . 6

Grounding Instructions (420-1902) . . . . . . . . . . . . . . . . . . . . . . . . 7

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

PUMP HEAD REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . .11

SPECIAL APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

PRODUCT RETURN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

FLUOREL - Reg TM Minnesota Mining and Manufacturing Company
VAL OX - Reg TM General Electric Co.
DACRON , VITON - Reg TM E.I. DuPont de Nemours and Co.
Trademarks bearing the ® symbol in this publication
are registered in the U.S. and in other countries.

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SAFETY PRECAUTIONS

DANGER: Improper use of grounding plug can result in a risk of electric

shock.

DANGER: Unplug power cord before any cleaning operation is started.

WARNING: Gas under pressure should not be used for supply as a haz-

ardous bursting condition could develop in the pump head.
Use only gases contained at atmospheric pressure.

CAUTION: Do not operate pump when pressure ports of both heads are

in a blocked condition.

CAUTION: Do not use metal fittings with any Air Cadet Pump.