Kussmaul Electronics 091-9B-1 User Manual

Rev: C, DATE: 1-19-12

INSTRUCTION MANUAL

®

AUTO-PUMP

120 VAC

AIR COMPRESSOR SYSTEM

FILE: 091-9B-1 rev c

170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com

MODEL #091-9B-1

INPUT :120 Volt, 60 Hz, 4.2 Amps

OUTPUT :100 PSI MAXIMUM

1 YEAR WARRANTY

Ph: 800-346-0857

Fax: [phone]

[e-mail]

INTRODUCTION

The 091-9B-1 Auto-Pump Air Compressor system is a 120 volt 60 Hz shaded pole 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 70 psi and stops the compressor

when 90 psi is attained . The start up pressure is field adjustable - the pressure differential

between start up and stopping is fixed.

A moisture trap is mounted on the Auto Pump. This captures any condensate which results

from compressing the air. In addition, the moisture trap in combination with the check valve

and the unloader on the pressure switch permits the Auto Pump to start "unloaded". This

reduces the load on the motor and permits starting at the higher system pressures.

Please read and follow the installation instructions carefully . The Auto Pump requires no

routine maintenance . A careful installation will assure years of trouble free operation.

NOTE

THIS PUMP REQUIRES A MINAMUM OF 110 VOLTS FOR

OPERATIONAT 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.

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 the position as shown being certain that the compressor is above
airpressure tank.

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 .

4. All connection 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 beteen 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 091-9H-1 is available to reduce any vibration and noise from Auto

Pump and to simplify pump mounting.

NOTE: Compressor must be mounted above air

tank to assure that moisture will flow away from

compressor.

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.

2. The compressor is calibrated to cut-in at 70 PSI and cut-out at 90 PSI . For higher cut-in
and cut-out, turn the range nut clockwise . To lower cut-in turn range nut counterclockwise .
Do not exceed 100 PSI .

NOTE

THIS PUMP REQUIRES A MINAMUM OF 110 VOLTS

FOR OPERATIONAT LOWER VOLTAGES THE

PUMPWILL NOT START

COMPRESSOR OUTPUT IS 100 PSI MAXIMUM. DO

NOT EXCEED 100 PSI OR YOU WILL VOID

WARRANTY.

SPECIFICATION & OUTLINE AUTO PUMP

Input : 120 volts A.C. 60 Hz, 4.2 amps

Weight: 13 lbs

Motor Horsepower: 1/8 HP

Motor Type: Shaded pole A.C.

Compressor Output: 0.76 CFM Open Flow, 100 PSI Maximum.

Pressure Switch: Adjustable Set Point-Factory

set to 70 PSI Cut-in, 90 PSI Cut-out

Switch Differential: 20 PSI Nominal

Outlet Connection: 1/4 NPT, Female

TEMPLATE AUTO PUMP

3.50

7/32 DIA. HOLES

4PLACES

4.75

Hole Template may not be to Scale, please check dimensions before using.

SPARE PARTS LAYOUT AUTO PUMP

ACCESSORIES

MOUNTING PLATE

MODEL # 091-9H-1

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 OR OPERATING AUTO

PUMP OVER 100 PSI WILL VOID WARRANTY