Kleinn Air Horns JT-OBA User manual

JT-OBA/220
INSTALLATION MANUAL
REV: C (6/25/2021)
© Kleinn Air Horns 2021, All Rights Reserved
PO Box 91278 Tucson, AZ 85752
Phone: [phone]
Web: https://www.kleinn.com

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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Table of Contents
1 How to Use This Manual.......................................................................................................................5
1.1 Interactive Manual Using Adobe Reader......................................................................................5
1.2 Your SKU Number & this Manual..................................................................................................5
1.2.1 JT-OBA & JT220.....................................................................................................................5
1.3 Illustration/Photo Details & Orientation ......................................................................................5
2 Safety First ............................................................................................................................................6
3 Application Chart ..................................................................................................................................7
3.1 Bolt-On Vehicle List.......................................................................................................................7
3.2 Excluded Vehicles..........................................................................................................................7
3.3 Aftermarket Product Compatibility ..............................................................................................7
4 Installation Overview ............................................................................................................................8
4.1 Kit Layout & System Location(s) ...................................................................................................8
4.2 Install Process Outline...................................................................................................................9
4.3 Approximate Installation Time......................................................................................................9
5 List of Tools & Supplies .......................................................................................................................10
5.1 Standard Tool List (Required) .....................................................................................................10
5.2 Special Tool List (Recommended)...............................................................................................10
5.3 Shop Consumables List (Recommended)....................................................................................10
6 Parts List..............................................................................................................................................11
6.1 Review Parts List .........................................................................................................................11
6.2 Pre-Packaged Electromechanical Kit Items.................................................................................12
6.3 Air Fittings & Related Items ........................................................................................................13
6.4 Electrical Components & Related Items .....................................................................................13
6.5 Mounting Brackets & Special Hardware.....................................................................................14
6.6 Hardware, Fasteners, & Soft Parts..............................................................................................15
7 Bench Assembly..................................................................................................................................17
7.1 Assemble Air Fittings to Air Tank ................................................................................................17
7.2 Assemble Rubber to Tank Mounts & Tank Straps ......................................................................18
7.3 Assemble Compressor to OBA Bracket.......................................................................................18
7.4 JT220: Disassemble Horn Drivers from Air Horns.......................................................................19

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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7.5 JT220: Attach Horn Drivers to Horn Bracket (JT-200).................................................................19
7.6 Attach Relay to Tank Bracket......................................................................................................20
8 On-Vehicle Mechanical Assembly.......................................................................................................21
8.1 Attach Bracket to Vehicle (JT-100)..............................................................................................21
8.2 Attach Tank to Bracket (JT-100)..................................................................................................23
8.3 Attach Zip-Tie Bracket (JT-102)...................................................................................................23
8.4 JT220: Attach Horn Bracket (JT-200) ..........................................................................................24
9 On-Vehicle Electrical Installation........................................................................................................27
9.1 Relay & Fuse Diagram for Air Horn System ................................................................................27
9.2 Disconnect Vehicle Battery(s).....................................................................................................28
9.3 Suggested Air Hose/Wire Routings.............................................................................................28
9.4 Connect Wires to Fuse & Relay...................................................................................................32
9.5 Install Horn Button......................................................................................................................32
9.6 Connect Pressure Switch.............................................................................................................33
9.7 Connect Air Compressor .............................................................................................................33
9.8 Connect Air Horn Solenoid(s)......................................................................................................33
9.9 Secure Wiring to Vehicle.............................................................................................................33
10 Final Steps & Testing.......................................................................................................................34
10.1 Reconnect Vehicle Battery(s)......................................................................................................34
10.2 Test Air Compressor....................................................................................................................34
10.3 Test Train Horns..........................................................................................................................34
10.4 Test Quick Connect Coupler........................................................................................................34
11 General Operation ..........................................................................................................................35
11.1 Compressor Operation................................................................................................................35
11.2 Horn Operation...........................................................................................................................35
12 Routine Maintenance .....................................................................................................................35
13 Warranty Information.....................................................................................................................36
END OF TABLE OF CONTENTS

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
Go to Table of Contents
REV: C (6/25/2021)
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1How to Use This Manual
1.1 Interactive Manual Using Adobe Reader
It is recommended to open this digital PDF using Adobe Reader® to take advantage of following key
features:
•Hyperlinks (blue underlined text) allow access to additional content via internet; click/tap to
activate. Hyperlinks also allow users to jump to specific spots in within the document.
•Includes Installation Figures and “Figure xx”
•Table of Contents page allows easily navigating this manual; click/tap any section line to go to
it
•Bookmarks allow quick navigation to any section; click/tap
•Zoom IN on pictures by pressing “CTRL and +” at same time on PC, or pinch in on smart
devices
•Zoom OUT on pictures by pressing “CTRL and -” at same time on PC, or pinch out on smart
devices
To Download & Install Adobe Reader®
On PC or Mac:
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On Android/iOS, and Windows devices:
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1.2 Your SKU Number & this Manual
This manual covers installation, testing, and operation of following SKU part numbers
1.2.1 JT-OBA & JT220
NOTE: Illustrations and pictures contained herein may represent only one kit part number.
Where critical differences exist between kits, (i.e., different parts, orientation, mounting points,
etc.) additional text, or necessary graphics are provided to minimize confusion.
Parts list explicitly state kit differences with (BOLD TEXT) inside parenthesis, shown below part
number
1.3 Illustration/Photo Details & Orientation
This manual may use digitally created illustrations and/or actual photos of example vehicle. These
graphics may not include exact items found on your vehicle (i.e., electrical wiring, fuel lines, body
panels, etc.). Illustrations typically will be missing details and are for clarity to show critical mounting
locations and orientation on vehicle.
Throughout the manual, yellow arrows with text reading “FRONT”
may be present over illustrations and pictures. These arrows specify
direction toward the front of the vehicle and provide clarity as to
how illustration is viewed.
END OF SECTION
FRONT

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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2Safety First
Read manual thoroughly before starting installation of this kit. Verify that you have all parts listed, and
that you clearly understand the installation procedure. Contact Kleinn technical support with any
questions.
Installation of this kit requires moderate mechanical aptitude; seek professional help if you’re not
competent using hand tools in tight uncomfortable spaces and around possibly rusted and sharp vehicle
parts.
Before starting, obtain proper tools required to perform installation correctly, adequate lighting, eye
protection, hearing protection, (for operating train horns) and hand protection to guard against sharp
edges and metal burrs which may be present on kit parts and/or vehicle parts.
Throughout this manual the following words may be used; be aware of their meaning and application.
CAUTION: means damage could occur to vehicle or kit parts during or after installation.
WARNING: means injury could occur to you or others, including damage to vehicle or kit parts.
DANGER: means serious injury or death could occur to you or others during installation.
END OF SECTION

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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3Application Chart
3.1 Bolt-On Vehicle List
The JT-OBA & JT220 have been designed to work for Jeep Gladiator (JT) 2020 and up models (gas only).
MODEL YEAR
MODEL
DRIVE
ENGINE
BODY
TRIM
2020-2021
Gladiator
All
Gas
All
All
NOTE: All vehicles listed may require drilling holes for ground wires and installing switches,
based on preference of installed switch locations and wire grounding points.
3.2 Excluded Vehicles
The following vehicles have been found to be incompatible with the designed kit:
MODEL YEAR
MODEL
DRIVE
ENGINE
BODY
TRIM
2020-2021
Gladiator
Any
Diesel
Any
Any
2020-2021
Gladiator
Any
Hybrid
Any
Any
3.3 Aftermarket Product Compatibility
This kit has been designed to work with the following aftermarket products:
•Aftermarket steps
•Aftermarket winch
This kit has not been designed to work with the following aftermarket products:
•Aftermarket exhaust
NOTE: Review this manual in full before unpacking items to verify correct space and mounting
locations exist with your aftermarket product(s). To install this kit alongside your other aftermarket
product(s), modification to the included parts, your vehicle, or your aftermarket product(s) may be
required.
END OF SECTION

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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4Installation Overview
4.1 Kit Layout & System Location(s)
JT-OBA & JT220 consist of the following components, located on vehicle as follows:
ITEM
DESCRIPTION
VEHICLE LOCATION
MOUNTING METHOD
APROX. INSTALL
TIME
1
Air compressor
Under center of
vehicle
Bolt-on with provided
bracket
4 hr.
2
Tank
3
Horns (JT220 only)
Passenger-side
frame rail
Bolt-on with provided
bracket
2.5 hr.

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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4.2 Install Process Outline
For person(s) with prior experience installing JT-OBA/JT220, a reminder of the install steps is provided
below:
UNPACKAGE KIT (SECTION 7)
1. Layout and organize all parts
BENCH ASSEMBLY (SECTION 8)
2. Assemble air fittings to air tank
3. Prepare tank bracket and tank straps
4. Assemble compressor to OBA bracket
5. Remove horn trumpets from drivers (JT220 Only)
6. Attach horn drivers to horn bracket (JT220 Only)
ON-VEHICLE MECHANICAL ASSEMBLY (SECTION 9)
7. Attach OBA bracket to vehicle
8. Attach air tank (with fittings) to OBA bracket
9. Assemble air filter to air compressor
10. Attach horn bracket (with drivers) to vehicle (JT220 only)
11. Re-Attach horn trumpets to horn drivers (JT220 only)
12. Route air lines between compressor, tank, and remote coupler (& horns)
ON-VEHICLE ELECTRICAL ASSEMBLY (SECTION 10)
13. Install relay & fuse, route wiring, and install horn button
14. Connect all electrical items (air horn(s), pressure switch, air compressor)
FINAL STEPS (SECTION 11)
15. Test system
4.3 Approximate Installation Time
JT-OBA & JT220 are multi-faceted products consisting of mechanical, electrical, and pneumatic
components.
For a typical home mechanic, auto enthusiast, or technician installing this kit for first time; a professional
installation job with setup and testing of final product, is estimated to take:
•6.5 hours
END OF SECTION

JT-OBA/220
Kleinn Air Horns
INSTALLATION MANUAL
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REV: C (6/25/2021)
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5List of Tools & Supplies
5.1 Standard Tool List (Required)
1. Basic mechanic’s 3/8” drive socket sets with extensions
•Inch size sockets
•Metric size sockets
2. Basic mechanic’s combination wrenches (box/open-end)
•Inch size sockets
•Metric size sockets
3. Basic mechanic’s screwdriver set (Philips, Flat Head)
4. Diagonal cutter/wire cutter pliers
5. Wire strippers
6. Wire terminal crimpers
7. Slip-joint pliers
8. Vise grips or locking pliers
9. Small pry bar or large flat blade screwdriver
10. Utility knife or utility razor blade
11. Magnetic retrieval tool
5.2 Special Tool List (Recommended)
1. Power hand grinder, pneumatic grinder with cut-off wheel, or hacksaw
2. 10-100 ft-lbs. torque wrench
3. 20-150 in-lbs. torque wrench
4. Multi-meter for 12V DC electrical systems or equivalent
5. 12V DC test Light or equivalent
6. Trim panel tool, for removing wiring and body clips, when needed
5.3 Shop Consumables List (Recommended)
1. Quality electrical tape
2. Di-electric grease for electrical connections
3. Heat shrink tubing for electrical connections
4. Medium-strength thread-locker (i.e., Blue Loctite® PN 242) or equivalent
5. Low-strength thread-locker (i.e., Purple Loctite® PN 222) or equivalent
6. Black/Clear silicone for drilling holes in body
7. Sandpaper or wire brushes for installing ground wires
8. Extra plastic zip ties > 6” long
9. Extra NPT sealant (i.e., Kleinn Air Horn Juice, Teflon tape, etc.)
10. Touch-up paint for frame/chassis/body (i.e., primer or black epoxy)
11. Typical cleanup supplies
END OF SECTION