Lippert Components Air Ride 155925 Instructions d'installation

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

Table of Contents

Introduction ............................................ 2

Safety ................................................... 2

Parts List ................................................ 2

Resources Required ................................... 2

Installation .............................................. 3

Operation ............................................... 4

Pull Test ............................................... 4

Troubleshooting ........................................ 5

Maintenance ............................................ 6

Notes .................................................... 6

Air RideTM Pin Box

Installation and

Owner’s Manual

(For Aftermarket Applications)

Air Ride Pin Box KitsAir Ride Pin Box Kits

Part #Part # DescriptionDescription

155925 21K L03 Air Ride Pin Box

158778 21K L05 Air Ride Pin Box

158777 21K L07 Air Ride Pin Box

179879 18K M15 Air Ride Pin Box

155943 21K M19 Air Ride Pin Box

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

THE “CAUTION” SYMBOL ABOVE IS A SIGN THAT

A PROCEDURE HAS A RISK INVOLVED THAT MAY

CAUSE PERSONAL INJURY AND/OR PRODUCT

DAMAGE IF NOT PERFORMED SAFELY AND WITHIN

THE PARAMETERS SET FORTH WITHIN THIS

MANUAL.

LetterLetter PNPN DescriptionDescription

A156740 Tank Valve

B177223 Oil Shock

C432404 Air Spring

Introduction

Trailair was first-to-market with Air Ride™for 5th Wheels

and still leads the way with innovative 5th Wheel pin box

technology. The new Air Ride Pin Box uses time-tested

Trailair air ride technology to provide an unparalleled ride,

eliminating chucking and the vertical tug-of-war between

the 5th Wheel and tow vehicle.

Additional information about this product can be obtained

from lci1.com/support or by using the myLCI app.

Replacement kits can be ordered from https://store.lci1.

com/ or by using the myLCI app.

The myLCI app is available for free on iTunes®for iPhone®

and iPad®and also on Google Play™for Android™users.

iTunes®, iPhone®, and iPad®are registered trademarks of

Apple Inc.

Google Play™and Android™are trademarks of Google Inc.

Safety

Read and fully understand all instructions before installing

or operating this product.

Adhere to all safety labels.

Parts List

Resources Required

• 2-3 people, depending on

task

• Safety glasses

• Tape measure

• Air compressor

• Wrench and socket set

• Box end wrenches

• Level

B C

THE “WARNING” SYMBOL ABOVE IS A SIGN THAT A

PROCEDURE HAS A SAFETY RISK INVOLVED THAT

MAY CAUSE DEATH, SERIOUS PERSONAL INJURY,

SEVERE PRODUCT AND/OR PROPERTY DAMAGE

IF NOT PERFORMED SAFELY AND WITHIN THE

PARAMETERS SET FORTH WITHIN THIS MANUAL.

NOTE: Part numbers are shown for identification purposes

only. Not all parts are available for individual sale. All parts

with a link to the Lippert Store can be purchased.

Make sure pin box is sufficiently and properly supported

before removing mounting hardware.

Prior to new pin box installation, make sure air bag on new

pin box is not overinflated.

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

Installation

NOTE: The pin box assembly weighs several hundred

pounds. A minimum of two people are required to complete

the removal and installation of the pin boxes. A forklift may

be used to lift the pin box into position.

NOTE: The 5th Wheel should always be towed while level.

Adjustment of the pin box mounting height, the tow vehicle

height or suspension may be necessary to accomplish a

level towing condition. 3. Properly support the pin box assembly.

4. Remove fasteners holding the original pin box in place.

5. Remove original pin box. Retain mounting fasteners

for reuse.

6. Hoist the new pin box into place.

7. When installing the new pin box, measure from the

ground up to the at plate of the upper jaw of the pin box.

Once the new pin box is aligned, that measurement should

be equal to the measurement taken in step 2 plus 11 ¾”.

Record this dimension as B (Fig.2).

8. Reinstall previously removed fasteners (step 4).

NOTE: Use the same amount of fasteners as were

previously used. If any nuts, bolts or washers are damaged

or unusable, replace with new fasteners equivalent in style,

grade and diameter as original hardware.

Ground

Fig.1

B = A + 11 ¾”

Ground

Fig.2

MOVING PARTS CAN PINCH, CRUSH OR CUT. KEEP

CLEAR AND USE CAUTION.

AN UNSUPPORTED PIN BOX DURING PRODUCT

REMOVAL CAN RESULT IN DEATH, SERIOUS

PERSONAL INJURY, SEVERE PRODUCT AND/OR

PROPERTY DAMAGE. PROPERLY SUPPORT PIN BOX

BEFORE REMOVING MOUNTING BOLTS.

1. Level the trailer front-to-back.

2. Measure from the ground to the bottom of the kingpin

plate on the current pin box. Record this dimension as

A (Fig.1).

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

9. Torque pin box bolts and nuts accordingly:

• Torque ½” bolts to 110 ft-lbs minimum.

• Torque 5/8” bolts to 160 ft-lbs minimum.

• Torque ¾” bolts to 210 ft-lbs minimum.

10. Make sure that the 5th wheel coupler located in

the tow vehicle is mounted according to the proper

instructions of the 5th Wheel manufacturer. In addition,

make sure that it is in good working condition. A non- or

poor-working coupler will a󰀨ect pin box performance,

resulting in an unsafe towing condition. Make sure the 5th

Wheel connection is never located behind the center of the

drive axle.

11. After all nuts and bolts have been tightened, attach

trailer to tow vehicle. Before applying the air nozzle tting

at the top of the pin box, make sure the alignment pin is in

the hole on the bottom of the air spring.

12. With the tow vehicle at rest, inate the air bag with

enough air to raise the pin box to the ride height mark

on the front of the shock absorber (Fig.3A). The starting

pressure should be around 80-90 psi, with the pressure

increased according to the ride height mark. However, the

Fig.3

THE AIR BAG CAN LOSE AIR OVER TIME, RESULTING IN

REDUCED OR LOSS OF PRODUCT PERFORMANCE. REDUCED

OR LOSS OF PRODUCT PERFORMANCE CAN CAUSE

PRODUCT AND/OR PROPERTY DAMAGE. ALWAYS VERIFY

CORRECT LEVEL AGAINST THE SHOCK’S HEIGHT MARK AND

TRAILER BEFORE TRAVELING. ADJUST AIR PRESSURE AS

NECESSARY TO ACHIEVE CORRECT PIN BOX LEVEL.

AN OVERINFLATED AIR BAG CAN BURST, RESULTING IN

DEATH, SERIOUS PERSONAL INJURY, SEVERE PRODUCT

AND/OR PROPERTY DAMAGE. DO NOT OVERINFLATE AIR

BAG. INFLATE AIR BAG TO RIDE HEIGHT LEVEL IDENTIFIED

ON THE SHOCK ABSORBER.

AN UNSECURED AIR SPRING DURING INFLATION CAN CAUSE

PERSONAL INJURY. MAKE SURE AIR SPRING IS PROPERLY

SECURED TO THE PIN BOX BEFORE INFLATING. INSTALL AIR

CAP TO SAFELY COMPLETE AIR SPRING INFLATION.

pressure is not to exceed 120 psi. Filling should be stopped

when reaching either the ride height mark or 120 psi,

whichever comes rst. The minimum pressure is 45 psi.

13. Check the air pressure level on the air bag before each

use and adjust accordingly.

Operation

Pull Test

1. Make sure the trailer wheels are blocked, the trailer

landing gear is resting on rm ground to support the

trailer and the tow vehicle is in park with the emergency

brake engaged.

2. Return to the cab of the tow vehicle, release the

emergency brake and then apply the trailer brakes.

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

What is happening?What is happening? What should be done?What should be done?

Trailer not level. Adjust pin box or hitch

accordingly.

Excessive chucking in tow

vehicle.

Inspect pin box air bag air

pressure. Add or remove

air to recommended point.

If low, check for leaks and

replace if needed.

Excessive noise from pin

box area.

Verify that the pin box is

securely attached to the

5th wheel. If the king pin

is excessively worn, the

jaw plate will need to be

replaced. Check pressure

in air bag and replace if not

holding air. Look for damage

on shock or a disconnected

shock. Reconnect or replace

shock if needed.

Hitch mechanisms can

also cause noise. Verify

that unwanted noise is not

coming from the hitch. The

hitch manufacturer can

provide guidelines for this

check.

Troubleshooting

FAILURE TO PERFORM A PULL TEST MAY RESULT IN

SEVERE PROPERTY DAMAGE, SERIOUS PERSONAL

INJURY OR DEATH. FAILURE TO SECURE TOW

VEHICLE AND TRAILER FROM MOVEMENT DURING

PROCEDURE COULD RESULT IN SEVERE PROPERTY

DAMAGE, SERIOUS PERSONAL INJURY OR DEATH.

MAKE SURE TOW VEHICLE AND TRAILER ARE

PROPERLY SECURED AGAINST MOVEMENT DURING

THE PROCEDURE.

3. Slowly pull the trailer forward with the tow vehicle.

A. If the tow vehicle is properly hitched, the wheel blocks

and trailer brakes should keep the truck from moving

forward.

B. If the trailer is not properly hitched, the trailer will

separate from the hitch and the truck will move forward

while leaving the trailer behind. If this happens, repeat

hitching procedure.

4. After successfully performing the pull test, fully raise the

landing gear per manufacturer’s recommendations.

5. Check and inspect all electrical circuits for proper

operation, to include clearance lights, turn signals and stop

lights.

6. Remove and store all trailer wheel blocks.

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

Notes

Maintenance

Periodically check the recess on the top of the pin box

(Fig.3B) for standing water. Drain water and remove debris

as needed. The area should be clean and clear of all

contaminants.

The pin box air bag can lose air over time. Always check

pin box and that trailer is level before traveling. Adjust

air bag air pressure as necessary to achieve proper ride

height.

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

Notes

lci1.com 574-537-8900 Rev: 10.08.19

Air Ride™Pin Box

Installation and Owner’s Manual

(For Aftermarket Applications)

CCD-0001741

Manual information may be distributed as a complete

document only, unless Lippert Components provides

explicit consent to distribute individual parts.

All manual information is subject to change without

notice. Revised editions will be available for free

download at lci1.com. Manual information is considered

factual until made obsolete by a revised version.

Please recycle all obsolete materials and contact

Lippert Components with concerns or questions.

Notes

Ce manuel convient aux modèles suivants

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