Kleinn GMHD20-734 Manuel utilisateur

GMHD20-734

Install Guide

Revision: BETA

PO Box 91278 Tucson, AZ 85752

Phone: (520) 579-1531

Web: www.Kleinn.com

Install Guide GMHD20-734

Page | 2 Revision: BETA

Table of Contents

1. Application Chart .................................................................................................................................. 4

1.1. List of compatible vehicles............................................................................................................ 4

1.2. Incompatible Vehicle Features & Trim Packages.......................................................................... 4

1.3. Aftermarket Product Compatibility .............................................................................................. 4

2. Before You Start.................................................................................................................................... 5

3. Installation Overview ............................................................................................................................ 5

3.1. Kit Layout & Location.................................................................................................................... 5

4. List of Tools & Supplies ......................................................................................................................... 6

4.1. Standard Tools .............................................................................................................................. 6

4.2. Specialty Tools .............................................................................................................................. 6

4.3. Consumables................................................................................................................................. 6

5. Parts List................................................................................................................................................ 7

5.1. Primary Kit Components ............................................................................................................... 7

5.2. Fittings & Related Items................................................................................................................ 8

5.3. Electrical Components & Related Items ....................................................................................... 9

5.4. Mounting Brackets........................................................................................................................ 9

5.5. Hardware & Related Items.......................................................................................................... 11

6. Recommended Routing of Air Tubing & Wire ....................................................................................13

7. Bench Assembly ..................................................................................................................................14

7.1. Rubber Trim – Cutting & Installation .......................................................................................... 14

7.2. Air Horns – Disassembly & Preparation...................................................................................... 15

7.3. Air Horns – Bracket Install & Preparation...................................................................................17

7.4. Air Tank – Fitting Installation ......................................................................................................18

7.5. Compressor – Fitting Installation................................................................................................ 19

7.6. INF-1 – Fitting Installation........................................................................................................... 19

8. On-Vehicle Assembly ..........................................................................................................................20

8.1. Air Horn – Driver Side Installation .............................................................................................. 20

8.2. Air Horn – Passenger Side Installation........................................................................................ 24

8.3. Air Horn – Center Horn Installation ............................................................................................26

8.4. Compressor Installation..............................................................................................................27

8.5. Tank Installation.......................................................................................................................... 32

8.6. Air Tank Installation ....................................................................................................................35

Install Guide GMHD20-734

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8.7. 1302 Remote Air Quick Connect.................................................................................................36

8.8. Final System Plumbing ................................................................................................................36

9. On-Vehicle Electrical Installation ........................................................................................................37

9.1. Solenoid Connector – Reconfigure the Housing & Wiring..........................................................37

9.2. Attach Relay & Fuse to Vehicle ................................................................................................... 38

9.3. Install Horn Button...................................................................................................................... 38

9.4. Route Wiring & Make Connections.............................................................................................39

10. Testing the Air System ....................................................................................................................40

10.1. Air Compressor Test................................................................................................................40

10.2. Air Horn Test ...........................................................................................................................40

10.3. Quick Connect Coupler Test.................................................................................................... 40

11. Maintenance ...................................................................................................................................41

12. Warranty Information.....................................................................................................................42

Install Guide GMHD20-734

Page | 4 Revision: BETA

1. Application Chart

This kit is a direct bolt-on aftermarket product. The vehicles listed in the below table are considered to

be compatible with this aftermarket kit. Every effort has been made to verify fitment on these vehicles

in their factory condition.

WARNING: Before unpacking your kit, review this manual in full & verify the correct space & mounting

locations exist with your trim package.

1.1. List of compatible vehicles

Year

Make

Model

Drivetrain

Engine

Cab

Bed

Trim

2020 + Chevy

Silverado

2500HD

2WD

4WD

Vortec 6.6L

Duramax 6.6L Crew

Standard

Long

Work Truck

Custom

LTZ

High Country

Silverado

3500HD

2020 + GMC

Sierra

2500HD Standard

Long

Pro

SLE

SLT

AT4

Denali

Sierra

3500HD

NOTE: Drilling holes may be required for installing ground wires and switches based on the installer’s

preference.

1.2. Incompatible Vehicle Features & Trim Packages

This kit may not be compatible with the following vehicle features / trim packages:

•All OEM chassis cab frames with service boxes or flat beds, as purchased from dealerships.

1.3. Aftermarket Product Compatibility

This kit has been designed to be compatible with the following products from leading manufacturers:

•Amp Research Power Steps

This kit has not been designed to be compatible with the following products:

•N/A

Install Guide GMHD20-734

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2. Before You Start

Read this manual in its entirety before starting installation. Verify you have all the parts listed & that you

clearly understand the installation procedure. Contact KLEINN Technical Support with any questions you

may have.

Installation of this kit requires moderate mechanical aptitude.

Use the proper tools, supplementary lighting, and safety equipment when installing this kit.

3. Installation Overview

3.1. Kit Layout & Location

Item

No. Description Mounting Location

Approx.

Install

Time

1 6450RC Air Compressor

Along the passenger side frame rail, between

driver & passenger door

1 Hour

2 6353RT Air Tank

Suspended under vehicle, between driver & rear

passenger seat

1 Hour

3 730 Air Horns

Inside cavity of bedside steps | Suspended under

vehicle, between fuel tank & exhaust system

2 Hours

1302 Relocation Kit

TBD by Installer/Customer

(Not Illustrated)

N/A

Note: Wiring time is not factored into the overall install time of this kit. See Section 6 for suggested

wiring & plumbing routes.

Figure 1- Kit Layout

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4. List of Tools & Supplies

4.1. Standard Tools

•Mechanic’s 1/4" & 3/8” Drive & Socket Set – Imperial & Metric

•Combination wrenches – Imperial & Metric

•Hex wrenches – Imperial & Metric

•Screwdriver Set – #1, #2

•Wire Cutters

•Wire Strippers

•Wire Crimpers

•Utility Knife or Equivalent

•Precision Screwdriver or Small Pry Tool

4.2. Specialty Tools

•1/4” & 3/8” Universal Joints

•1/4" & 3/8” Extensions

•Multimeter, Test Light, or Equivalent

•Heat Gun

•Trim Panel Removal Tools

•Drill Driver & Bits

•Impact Driver & Bits

•Wire Running Kit or Equivalent

4.3. Consumables

•Quality Electrical Tape

•Medium Strength Thread Locker

•Sandpaper, Wire Brushes or Equivalent

•Extra Zip Ties

•Touch-up Paint

Install Guide GMHD20-734

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5. Parts List

Unpackage & organize the kit contents and verify all parts listed below are included. Contact KLEINN

Support if any questions arise.

5.1. Primary Kit Components

NOTE: Items in this section may come in their own packages which may include additional items,

hardware, or documentation.

Item

No.

Qty Part No. Description Picture

1 6450RC 150 PSI Waterproof Air Compressor

Kit

1 6353RT 2.6 Gal. Air Tank, 9-Port

1 730 730 Series Air Horn Kit

1 1302 Quick Disconnect Air Relocation Kit

NOTE: May be located within INF-1 Kit

1 INF-1 Tire Inflator Kit

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Page | 8 Revision: BETA

5.2. Fittings & Related Items

Item

No.

Qty Part No. Description Picture

1 51414F ¼” NPT Female to ¼” Compression

1 51414L ¼” NPT Male to ¼” Compression,

Elbow

1 51414NPTL ¼” NPT Male to ¼” NPT Female,

Elbow

1 52175 175 PSI Pop-Off Safety Valve

3 50040 ¼” NPT Male, Hex Plug

1 52835 ¼” NPT Male Drain Plug

1 51214L ¼” NPT Male to ½” Compression,

Elbow

1 2151 Pressure switch,

110 PSI On – 145 PSI Off

12 ft

25014 1/4" Air Tubing

NOTE: May be located within INF-1 Kit

F10

10 ft PFT38A 3/8” Air Tubing

F11

2 JUICE NPT Thread Sealant

Install Guide GMHD20-734

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5.3. Electrical Components & Related Items

Item

No.

Qty Part No. Description Picture

1 320 Momentary Switch, NO

1 N/A Wire Kit

30 ft N/A 3/8” Loom Pack

10 ft N/A 1/4" Loom Pack

5.4. Mounting Brackets

Item

No.

Qty

Part

No.

Description Picture

1 - Compressor Bracket

1 - Module Relocation Bracket

1 - Tank Bracket

2 - Tank Strap

1 - Passenger Side Horn Bracket, Front

Install Guide GMHD20-734

Page | 10 Revision: BETA

1 - Passenger Side Horn Bracket, Rear

1 - Driver Side Horn Bracket, Front

1 - Driver Side Horn Bracket, Rear

1 - Center Horn Bracket

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