INSTRUCTION MANUAL
®
AUTO-PUMP HP
120 VAC
HIGH PRESSURE
AIR COMPRESSOR SYSTEM
MODEL #091-9HP
FILE: 091-9HP.PM6.5
DATE: 11-17-04
INPUT: 120 volt, 60 Hz, 4.0 AMPS
1 YEAR WARRANTY
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826
INTRODUCTION
The 091-9HP Auto-Pump Air Compressor system is a 120 volt 60 Hz split capacitor A.C.
motor operating a single cylinder air compressor designed specifically for installation on vehicles
with air brakes. During long idle periods of the vehicle when even the slightest seepage can
cause an air brake system pressure to drop below the brake lockup pressure, the Auto Pump
automatically starts to maintain the pressure.
The Auto Pump motor is directly coupled to the compressor section eliminating all belts and
pulleys assuring long life and reliable operation. A heavy duty pressure switch is adjusted
to start the compressor when the system pressure drops below 100 psi and stops the compressor
when 125 psi is attained. The pressure switch is field adjustable. Do not set to a pressure
higher than 130 PSI.
A moisture trap is mounted on the Auto Pump. This captures any condensate which results
from compressing the air.
Please read and follow the installation instructions carefully . The Auto Pump requires no
routine maintenance EXCEPT FOR DRAINING THE MOISTURE TRAP. A careful installation
will assure years of trouble free operation.
CONDENSATE MUST BE DRAINED WEEKLY.
NOTE
THIS PUMP REQUIRES A MINIMUM OF 110 VOLTS FOR
OPERATION. AT LOWER VOLTAGES THE PUMP WILL NOT START
CAUTION
NO CONDENSATE OR
WATER MUST BE ALLOWED
TO ENTER OR ACCUMULATE
IN THE OUTPUT
OF THE AUTO PUMP.
ROUTE OUTPUT PRESSURE
LINE DOWNWARD FROM
AUTO PUMP TO PERMIT
MOISTURE TO DRAIN AWAY.
CONDENSATE TRAP MUST BE
DRAINED WEEKLY
WATER IN THE PUMP
OUTLET WILL INDUCE
FAILURE !
WATER DAMAGE WILL
VOID WARRANTY
VEHICLE TUBING INSTALLATION
1. Mount all components in a suitable location, preferably in a high area above the air system .
Do not mount in engine compartment or near any source of heat or dirt . The system may be
connected to any point in the vehicle's air system .
2. Mount air compressor in a vertical position as shown.
3. CAUTION no condensate or water must be allowed to enter or accumulate in the output of the
Auto Pump . Route output pressure line downward from Auto Pump to permit moisture to drain
away . Water in the pump outlet will induce failure .
DRAIN CONDENSATE SEPA RATOR WEEKLY
4. All connections for air lines are 1/4" NPT . Use Teflon tape, or equivalent on all connections
to insure no leakage of air.
5. The recommended installation of the Auto Pump air compressor system is shown below.
6. Note that an external check valve is located between the compressor and the pressure switch.
No additional check valve is required.
7. Mount the air compressor. Connect a suitable piece of flexible tubing from the outlet port of
compressor to the air tank . (Tubing and connectors are not supplied.)
8. An optional Mounting Plate 091-9HP-H is available to reduce any vibration and noise from the
Auto Pump and to simplify pump mounting.
NOTE: Compressor must be mounted above air
tank to assure that moisture will flow away from
the compressor
AUTO PUMP
091-9HP
Optional
Mounting
Plate Kit
091-9HP-H
VEHICLE WIRING INSTALLATION
1. The Auto Pump is supplied with a 120 volt A.C. line cord and is ready to operate. The line cord
may be plugged into an available outlet or the cord may be cut and permanently wired to the 120
volt A.C. system in the vehicle.
SPECIFICATION
Input : 120 volts A.C. 60 Hz, 4 amps
Weight: 13 lbs
Motor Horsepower: 1/8 HP
Motor Type: Split capacitor A.C.
Pressure Switch: set to 110 PSI Cut-in, 125 PSI Cut-out
Outlet Connection: 1/4 NPT, Female
ACCESSORIES
MOUNTING PLATE
MODEL # 091-9HP-H
FOR SIMPLIFIED MOUNTING
WARRANTY
All Auto Pumps of Kussmaul Electronics Company Inc. are warranted to
be free of defects of material or workmanship. Liability is limited to repairing
or replacing at our factory, without charge, any material or defects which
become apparent in normal use within 1 year from the date the equipment
was shipped. Equipment is to be returned, shipping charges prepaid and will
be returned, after repair, shipping charges paid.
Kussmaul Electronics Company, Inc. shall have no liability for damages
of any kind to associated equipment arising from the installation and /or use
of the Kussmaul Electronics Company, Inc. products. The purchaser, by the
acceptance of the equipment, assumes all liability for any damages which
may result from its installation, use or misuse, by the purchaser, his or its
employees or others.
CAUTION: WATER IN THE PUMP OUTLET
WILL INDUCE FAILURE
WATER DAMAGE WILL VOID WARRANTY
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