Vendor:

Hendrickson Aux Axle

Vendor Information

Hendrickson is a leading global manufacturer and supplier of heavy duty mechanical, elastomeric and air suspensions; integrated and nonintegrated axel systems; and parabolic and multi-leaf springs to the global commercial transportation market. Hendrickson offers the widest
variety of auxiliary lift axles on the market to meet the requirements of any application.

Customer Service &
Technical Support

Hino Parts Support Phone: 866-372-4466
Hino Parts Support Email: [email protected]
Hino Parts Support Fax: 662-342-3939
Hendrickson Aux Axle Customer Service Phone: 740-929-5600
Hendrickson Aux Axle Tech Service: 740-929-5644
Hendrickson Aux Axle Unit Down Phone: 740-929-5682
Hendrickson Aux Axle Email: [email protected]
Hendrickson Aux Axle Web: http://www.hendrickson-intl.com/
Hendrickson Aux Axle Fax: 740-929-5601

Order Procedures:

All orders are to be placed through the Hino Dealer Connect System (DCS). For special orders or for customer support contact Vendor
directly via phone number.

Stock Orders
Emergency Orders

Minimum Order Quantity

Enter orders in DCS Screen DC202 under Sales Type “S”. All direct ship items will be shipped from a local Vendor PDC.
Emergency orders may be entered into DCS screen DC202 as a Sales Type “E” or "V". All emergency orders will be processed with a “rush”
order. Freight and Handling fees will be identified on the Hino invoice. Emergency orders will have a lead -time of 24 -48 hours depending on
product type.
There are no minimum order requirements on orders.

Direct Ship Freight Policy:

For all non-axle orders & orders less than 10 axles, shipments within the Continental United States are freight prepaid and added to the
invoice. All orders are shipped from 277 N. High Street, Hebron, OH 43025 unless otherwise specified. All orders will be shipped via the most
efficient method unless otherwise noted by customer.

Free Freight Policy (Direct
Ship):

All direct shipped orders to one location of 10+ axles will include freight prepaid by Hendrickson from Hebron, OH location.

Order Fulfillment Policy:

Lift axle standard leadtime is 2-3 weeks but varies depending on business conditions. Orders for replacement parts that are in-stock have a
standard 2-3 day leadtime unless noted critical which if placed before 2:00 PM EST will ship next-day. All lead-times are subject to material
availability and may change at any time. Hendrickson has a commitment to provide all parts when requested and focuses strongly for ontime delivery.

Part Number Pricing:

Hendrickson Aux Axle pricing is available on-line in the Hino DCS system.

Format:

Standard Part numbers are directly carried over; no prefix or suffix.

Mega Fleet:

All-Makes parts are not included in the Hino Mega Fleet pricing file but should be sold to Mega Fleet customers and filed as Miscellaneous
Items in Corcentric when submitting for reimbursement.

Warranty:

Please view Vendor warranty documents as warranty varies based on item. For detailed information visit the Hendrickson website
http://www.hendrickson-intl.com/pdfs/Auxiliary_PDFs/H624_B.pdf and review document H624. Please view Vendor warranty documents as
warranty varies based on item. Contact vendor directly for a RGA approval number. Warranty covers manufacturers defects only and does
not cover damage (installation or progressive). If the vendor provides a RGA number, contact Hino Trucks warranty department. Warranty
claims are to be sent back through Hino Trucks corporate.

Returns:

Contact vendor directly to obtain a Return Goods Authorization code by phone number or email address listed above. All returned items
MUST have prior approval and the Return Goods Authorization (RGA) marked on the outside of the box. RGAs have an expiration date of
sixty (60) days; after sixty (60) days the return will become null and void. All returns are subject to a 25% or greater restocking fee. Will not
authorize any returns that are not properly packaged or in the original packaging. No credit will be issued for product that has been
damaged, altered, or installed on equipment. The customer is responsible for all freight charges on the returned merchandise. Special order
items or non stock items are not returnable.

Shipping Inspection and
Damaged Product:

All merchandise should be inspected upon arrival and carrier damage claims should be filed with the carrier immediately. Contact the Hino
PDC for any damaged product or shipping issues. For excess stock returns, contact the Vendor directly.

Vendor Cross Reference
Web Site:

http://www.hendrickson-intl.com/products/auxaxle.asp

Conclusion:

Hendrickson is the premium suspension leader both in quality and innovation and can be found worldwide on a variety of truck brands and
applications. Selling and installing only genuine parts allows you to make sure your customer expectations are exceeded. Hendrickson
genuine parts come with the technical expertise to help you get the most out of each service job. Service instructions, part lists, and
technical help can all be accessed either by calling Hendrickson direct, or reviewing the literature section on the website, www.hendricksonintl.com. Grow your business by partnering with an industry leader today!

PA-2011-51
06-01-12 03.57.PM

INSTALLATION
INSTRUCTIONS
LOAD EQUALIZATION SYSTEM

SUBJECT: COMPOSILITE™ SC, PRIMAAX® EX
and HAS™ SYSTEMS
LIT NO: H730
DATE: November 2011
REVISION: A

TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Components . . . . . . . . . . . . . . . . . . . . .
Brake Deactivation Valve. . . . . . . . . . . . . . . . . . .
Pre-installation Safety Precautions . . . . . . . . . . . .
Installation Instructions. . . . . . . . . . . . . . . . . . . .
Load Verification . . . . . . . . . . . . . . . . . . . . . . . . .

2
2
2
2
2
4

Installation Tips. . . . . . . . . . . . . . . . . . . . . . . . . . .
Instructions For Suspension Operation . . . . . . . . .
Raising Your Lift Axle. . . . . . . . . . . . . . . . . . . . . . .
Lowering Your Lift Axle. . . . . . . . . . . . . . . . . . . . .
Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5
5
5
5
6

LOAD EQUALIZATION INSTALLATION INSTRUCTIONS

INTRODUCTION

PRE-INSTALLATION SAFETY PRECAUTIONS

The warnings and cautions should be read carefully to
help prevent personal injury and to assure that proper
methods are used. Improper maintenance, service or
repair may damage the vehicle, cause personal injury,
render the vehicle unsafe in operation, or void manufacturer’s warranty. Failure to follow the safety precautions in this manual can result in personal injury and/
or property damage. Carefully read and understand all
safety related information within this publication, on all
decals and all such materials provided by the vehicle
manufacturer before conducting any maintenance,
service or repair.
WARNING: ELECTRICAL ENERGY CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
DISCONNECT THE VEHICLE’S BATTERY BEFORE CONDUCTING WORK
ON ANY PART OF THE VEHICLE’S
ELECTRICAL SYSTEM.

The following instructions are intended for the installation of Hendrickson SPIF air kits on vehicles equipped
with Hendrickson auxiliary suspensions and primary
drive suspensions. Load equalization is one of the many
new requirements of the amended SPIF regulations.
Please refer to the Amended Ontario Regulation 413/05
for the complete list of requirements to meet the new
SPIF regulations.
Hendrickson
Schedule No.

Primary
Suspension

Lift Axle

PRIMAAX EX
23

PRIMAAX EX

HAC-P23
COMPOSILITE SCT20

HAS
23 Long Wheelbase Dual Tires
21

PRIMAAX EX
HAS
PRIMAAX EX
HAS

Load Equalization
Kit
HAC-I23
HAC-H23

COMPOSILITE LKP20
COMPOSILITE SCT13

HAC-P23L
HAC-P21
HAC-H23

WARNING: STORED AIR PRESSURE CAN CAUSE
SEVERE PERSONAL INJURY AND
COMPONENT DAMAGE. RELEASE
ALL PRESSURE FROM AIR SPRINGS,
AIR LINES AND OTHER APPLICABLE
COMPONENTS BEFORE CONDUCTING
WORK ON ANY PART OF THE VEHICLE’S AIR SYSTEM. WEAR PROPER
EYE PROTECTION AT ALL TIMES.

NOTE: Read the entire installation instructions
thoroughly before proceeding with an air kit
installation.
For additional information concerning air kit selection,
contact the Hendrickson Customer Service Department
at 800-660-2829.

WARNING: DO NOT MODIFY OR REWORK PARTS.
DO NOT USE SUBSTITUTE PARTS OF
THE SUSPENSION OR AXLE COMPONENTS. USE OF A MODIFIED OR REPLACEMENT PARTS NOT AUTHORIZED
BY HENDRICKSON MAY NOT MEET
HENDRICKSON’S SPECIFICATIONS,
AND CAN RESULT IN FAILURE OF THE
PART, LOSS OF VEHICLE CONTROL,
AND POSSIBLE PERSONAL INJURY
OR PROPERTY DAMAGE. USE ONLY
HENDRICKSON AUTHORIZED REPLACEMENT PARTS. DO NOT MODIFY
PARTS WITHOUT AUTHORIZATION
FROM HENDRICKSON.

Alteration of an air kit or other suspension components
is not permitted.
It is the responsibility of the installer to ensure proper
installation and calibration by verifying load proportioning. Any installation deviations must be approved, in
writing, by Hendrickson’s Product Engineering Department. Failure to comply with any of the above will void
the warranty.

STANDARD COMPONENTS

PRIMAAX/HAS primary suspensions – (1) pressure
protection valve and (1) quick release valve for a single
lift axle application.

BRAKE DEACTIVATION VALVE

WARNING: PERSONAL PROTECTIVE EQUIPMENT:
ALWAYS WEAR PROPER EYE
PROTECTION AND OTHER REQUIRED
PERSONAL PROTECTIVE EQUIPMENT
TO HELP PREVENT PERSONAL
INJURY WHEN YOU PERFORM

A pilot valve used to allow auxiliary axle brakes (part #
R-001994) to normally apply when the suspension is in
the “DOWN” position. However, when the auxiliary axle
is in the “UP” position, the brakes are released to eliminate hang-ups during high centering and to conserve
system air pressure.
2

H730

LOAD EQUALIZATION INSTALLATION INSTRUCTIONS
VEHICLE MAINTENANCE, REPAIR
OR SERVICE.

9. Apply a thread locking compound and torque the
jam nuts to 45-55 ft-lbs
JAM NUTS
(APPLY THREAD LOCKING COMPOUND
AND TORQUE TO 45 TO 55 FT-LB)

INSTALLATION INSTRUCTIONS

1. Follow installation schematic for your air control.
2. Mount the control box in a location outside the
cab allowing the panel to open with access to the
push/pull knob; no inside function permitted
3. Support one of the drive axles with a jack to raise
one set of the tires on the driver’s side off the
ground
NOTE: The sensor must be installed on a non-lifting
axle with an ABS tone ring on the hub
4. Remove the wheels, brake drum, and brake shoes
from the supported axle end
5. Secure the Sensor Bracket to the axle with the
Clamp Band torquing the fastener to 9.0 +/- 1.5
ft-lbs

IMPORTANT! ORIENT SENSOR
SO THAT THE FLAT ON THE
END OF THE HOUSING IS IN
THE POSITION CLOSEST TO
THE AXLE. (SENSOR NOT
SUPPLIED WITH THIS KIT)