Air King K52 Service manual

July, 2016
1
701 Frontier Way,
Bensenville, IL 60106
Phone: [phone]
Fax : [phone] Website: AIR-KING.COM
SERVICE & INSTALLATION FOR
K52 & K552
VACUUM UNIT, AIR / VACUUM UNITS
UNITS 1200 SERIES .

July, 2016
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TABLE OF CONTENTS
1. Safety Instructions Page 3
2. Introduction Page 4
3. Service & Warranty Page 5
4. General Specifications Page 6
5. Electrical Requirements Page 7
6. Mounting Instructions Page 8
7. Operating Instructions Page 9
8. Basic Maintenance Page 10
9. Replacement of Parts Page 11-12
10. Trouble Shooting Page 13-14
11. Parts Identification Page 15-18
12. Vacuum Timers Page
13. Wiring Diagrams Page

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IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE OPERATING
WARNING: TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK OR INJURY:
1. Do not use the vacuum on wet surfaces.
2. Use the vacuum only as described in the manual
3. Only the recommended Manufactures attachments should be
used on the vacuum.
4. Do not handle the vacuum with wet hands
5. Do not put any objects into the openings of the vacuum.
6. Do not vacuum up anything that is burning such as: cigars,
cigarettes, matches, or hot ashes.
7. Do not vacuum up flammable or combustible liquids, such as
gasoline. This will trigger an explosion.
8. Do not use the vacuum in areas where flammable liquids may
be present.
WARNING: VACUUMS EQUIPPED WITH AIR COMPRESSORS (K552-750) OR
VACUUMS EQUIPPED WITH REMOTE AIR SOLENOIDS (K52-9)
1. Over inflation of tires may be dangerous. Please consult your
vehicle owner’s manual for proper tire inflation.
DANGERS:
This vacuum contains equipment that tends to produce arcs and sparks,
which can cause an explosion. This vacuum must be located 18 inches
above grade and at least 25 feet from a fuel dispenser.
The vacuum operates on 120-volt AC single phase, three wires
electrical power. This vacuum must be connected to a grounded metal
permanent wiring system, or an equipment grounding conductor must be
run with the circuit conductors and connected to the equipment grounding
terminal, or lead on the unit.
ALL SERVICING OTHER THAN BASIC MAINTENANCE SHOULD BE PERFORMED BY
QUALIFIED SERVICE PEOPLE.
SAVE THESE SAFETY INSTRUCTIONS

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INSTRUCTION
The American Products / Air King Vacuum is manufactured in a variety of configurations to
meet diverse customer needs. This manual has been prepared to aid service personal in
installing, diagnosing and repairing American Products Inc. equipment.
In general they come in one type of cabinet styles and three different models.
1. K52 Standard 2 Motor Vacuum 1200 series cabinet. (vacuum only)
.
2. K552- Two Motor Vacuum with ¾ H.P. Compressor 1200 series Cabinet.
(Air Vacuum)
3. K52-9 Standard 2 Motor with Remote Air Solenoid 1200 series Cabinet
(Air Vacuum Remote)
The Cabinets for the models listed above are made out of 16 gauge stainless steel.
Each of the basic models comes with a variety of optional features.
1. Models can be set up for free operation or coin operation.
2. Cut resistant hose (Air Vacuum & Air Vacuum Remote units only)
3. Single hose reel assemblies (Air Vacuum & Air Vacuum Remote units only)
4. JB 7 Lock Box for coin box security.
UNIT IDENTIFICATION
The model number and serial number appear on a metal tag, bearing the American
Products Inc. name (See Figure1 below). The identification tag is found inside the upper
compartment.
Figure 1.
Technical Support:
Our technical support staff is available at 1-800-542-3336 during normal business hours to
answer any questions regarding machine operation, components or spare parts. When
calling for technical support it is extremely helpful to have the serial # and machine model #
readily available.
Air King of America, Inc.
710 Frontier Way,
Bensenville, IL 60106
Model #
Serial #
K552-AV-P
1111111

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SERVICE AND WARRANTY
WARRANTY STARTS FROM DATE OF INVOICING
1) Air Compressors are warranted for defects in materials and workmanship for 18
months.
2) Multi Coin timers part # 1512 & 1515 are warranted for defects in materials and
workmanship for one year.
3) Hoses and air gauge’s are warranted for thirty days from Manufacturer defects
4) All other parts of the unit are warranted for ninety days.
5) Warranty covers parts and materials only, warranty does not include labor or
transportation costs of any kind.
6) If unit or parts are returned to the factory at the customers expense, there will
be no charge for labor.
7) Vandalism or misuse of equipment, or tampering is not covered under warranty.
8) No returns will be accepted without a prior R.G.A. (RETURNED GOODS
AUTHORIZATION).
For Service Call or Write:
Air King of America, Inc.
701 Frontier Way
Bensenville, IL 60106
Phone# [phone]
Fax # [phone]

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GENERAL SPECIFICATIONS
AIR KING MODEL K52
1. Four bag filter system for longer life.
2. Two twin stage 1.7 H.P. high performance vacuum motors.
3. 15 foot X 2 inch Industrial grade, crush resistant and clog
resistant hose with nozzle at the end of the hose.
4. Cabinet construction 16 and 11 gauge stainless steel or cold
rolled steel powder coated with a clear coat finish.
5. Separate timer for each function vacuum or air.
6. Money box secured with two medco plug locks on the 1200
series vacuum.
AIR KING MODEL K552-
1. High quality ¾ H.P. Industrial compressor.
2. Choice of standard red hose or cut resistant black hose.
MODEL
COMPRESSOR
H.P.
VACUUM
PEAK
H.P
CFM 2.5
ORIFICE
ELECTRICAL
RATING
(VACUUM)
SHIPPING
WEIGHT
K52
None
Vac Only
1.7 each
109
60HZ
18AMPS
150 LBS
K552
¾
or Remote Air
1.7 each
109
18 AMPS
VAC
13 AMP
Comp.
200 LBS
NOTE ALL SPECIFICATIONS ARE FOR 1200 SERIES VACUUM MACHINES

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ELECTRICAL REQUIREMENTS
Model K52 Vacuum only
A. 120 Volts AC Current
B. 20 AMPS Circuit Breaker
C. 60 HZ Single Phase
Model K52-9 Vacuum with Remote Air Solenoid
A. 120 Volts AC Current
B. 20 AMPS Circuit Breaker
C. 60 HZ Single Phase
Model K552- Vacuum with ¾ H.P. Compressor
A. 120 Volts AC Current
B. 40 AMPS Circuit Breaker
C. 60 HZ Single Phase
The use of the recommended wire size is required for proper operation of all models. See
wire size guide below. If using aluminum wire increase gauge on size.
Building Vacuum Machine
Run
Air King Model
#
Copper Wire Size
0 to 25 Ft
0 to 50 Ft
0 to 100 Ft
0 to 150 Ft
0 to 200 Ft
K52
K52-9
K552
14 GA
14 GA
8 GA
12 GA
12 GA
8 GA
10 GA
10 GA
6 GA
8 GA
8 GA
4 GA
6 GA
6 GA
4 GA
Note: The run should be the length from the circuit
Breaker inside the building to the Air/Vac. machine
outside the building.

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MOUNTING INSTRUCTIONS AND PATTERN
SEE WIRE SIZE GUIDE IN THE MANUAL FOR
PROPER WIRE GAUGE
SEE WIRE SIZE GUIDE ON
PAGE 7 FOR PROPER WIRE
GAUGE
USE ½ IN DIAMETER
STUDS 3 PLACES
CONDUIT CAN ENTER ANYWHERE IN THIS
CIRCLE, BUT SHOULD NOT EXTEND MORE THAN 1
INCH ABOVE CONCRETE BECAUSE FLOOR OF
VACUUM IS ONLY 2 ½ INCHES ABOVE THE
CONCRETE
ELECTRICAL REQUIREMENTS K52 & K52-9 , 120
VAC 20 AMP CIRCUIT BREAKER, K552-750 120
VAC 40 AMP CIRCUIT BREAKER
CONCRETE BASE SHOULD BE A MINIMUM OF 26 INCHES
LONG BY 26 INCHES WIDE 36 INCHES HIGH. CONCRETE
BASE SHOULD BE BURIED 24 INCHES IN THE GROUND.
CONRETE BASE SHOULD SIT UP A MINIMUM OF 12 INCHES
ABOVE GROUND LEVEL OR CAR BUMPER HEIGHT.
21 1/8
DIAMETER

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OPERATING INSTRUCTIONS
To operate a K52 Vacuum coin operated model follow these instructions:
A. Insert correct amount of coin or coins into the money slot of the machine.
The machine will then start.
B. Take two inch vacuum hose off hose hanger and proceed to vacuum vehicle.
To operate a K52 Vacuum free operated model follow these instructions:
A. To start machine there will be either a toggle switch or pushbutton switch
to turn machine on either move switch up or down to start or simply push
the button to turn vacuum on.
B. Take two inch vacuum hose off hanger and proceed to vacuum vehicle.
To operate a K552- or a K52-9 Air Vacuum and Air Vac. remote follow these
instructions.
A. To operate the Vacuum side insert the correct amount of coin or coins into
the money slot on the right hand side of the vacuum control box. The
vacuum will then start, repeat the step B above and proceed to vacuum
vehicle.
B. To operate Air side insert the correct amount of coin or coins into the
money slot on left hand side of the vacuum control box. The Compressor
will then start. Take hose off of hose hanger or out of reel assembly place
end of hose on valve stem of tire. You will have to hold the end of the hose
on to the valve stem.
C. Depress handle on air gauge and begin to fill tire. To check air pressure
in tire leave hose end on valve stem and let up on handle of gauge. The
gauge will pop out showing the air pressure in the tire.

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BASIC MAINTENANCE
1. Removal of Money Box 1200 Series Vacuum
A. Remove the two medeco plug locks with keys on front of the money box
face plate, rotate lock counter clockwise until you hear a click, pull lock
completely out. Use a 5/16 allen wrench to loosen bolts where the locks
were, turning bolts counter clockwise. When bolts are loose remove the
money box faceplate. Coin box or boxes are sitting behind faceplate.
2. Reinstall Money Box 1200 Series Vacuum
A. Replace coin box or boxes in unit, place money box face plate back into
position using 5/16 allen wrench line up bolts and tighten. Replace
medeco plug locks. Turn locks clockwise half of turn until they click.
Remove keys unit is now secured.
3. Cleaning Out Refuse Area 1200 Series Vacuums
A. Refuse area must be cleaned periodically. Refuse area is located behind
lower door on unit. If refuse is caught in the filter bags close lower door
and open top door and shake bags until refuse drops. Finish cleaning
out lower refuse area.
4. Dome Removal 1200 Series Vacuums
A. The dome is held on with four allen head screws. When the screws are
removed the dome may be lifted straight upward and off the unit.
5. Cleaning Exterior of the 1200 Series Vacuums
A. To remove scratches, paint, and dirt use soap and water or a cleaning
solution. Use a nylon scouring pad such as a scotch brite and rub with the
grain of the metal. Do not use steel wool and do not scrub decals.