Hendrickson TIREMAAX PRO Reference guide

TECHNICAL
PROCEDURE
TIREMAAX®PRO AND CP
TIRE INFLATION SYSTEMS
SUBJECT: Installation, Service and
Troubleshooting Procedures
LIT NO: T51002
DATE: April 2015 REVISION: E
QUICK REFERENCE GUIDE
First become familiar with the
information on page 4 through
page 12, then refer to the following
pages for installation instructions on
suspensions with:
• TIREMAAX®, DRESSED axles on
page 23 through page 37.
• TIREMAAX, UNDRESSED axles on
page 13 through page 37.
• All other axles, pre-drilled, on
page 16 through page 37.
• All other axles, not drilled, on
page 13 through page 37.
CP
T5001308-11 ECN 20134 Copyright
®
2011 Printed in the USA
REGULATORFACTORY SET. REFER TO
T51002OR CONTACT HENDRICKSON
FORADJUSTMENT INFORMATION.
PRO
NOTE: For information on TIREMAAX®CP
systems purchased prior to April
2012, refer to L995.

2T51002 E
InstallatIon, servIce and troubleshootIng Procedures
TABLE OF CONTENTS
Conventions Applied in this Document ...................................................................................................4
Explanation of Signal Words .............................................................................................................4
Links ..............................................................................................................................................4
General Service Notes..........................................................................................................................4
During Service: ................................................................................................................................4
Important Safety Notices ...................................................................................................................5
Contact Hendrickson ........................................................................................................................6
email ........................................................................................................................................6
Phone.......................................................................................................................................6
Literature.........................................................................................................................................6
Preparing Trailer for Service...............................................................................................................7
General Information..............................................................................................................................8
About this Manual ............................................................................................................................8
System Overview..............................................................................................................................8
Features..........................................................................................................................................8
System Specifications .................................................................................................................8
Operation .............................................................................................................................................9
How the System Operates .................................................................................................................9
Tire Inflation...............................................................................................................................9
Tire Deflation (TIREMAAX®PRO only)............................................................................................9
Component Description .......................................................................................................................11
TIREMAAX®Controllers....................................................................................................................11
Hubcap.........................................................................................................................................11
Axle Hoses and Fittings...................................................................................................................12
Spindle Plug and Grommet .............................................................................................................12
Tire Hoses.....................................................................................................................................12
Indicator Lamp ..............................................................................................................................12
Installation.........................................................................................................................................13
Installation Materials and Supplies ...................................................................................................13
Installation Introduction...................................................................................................................13
Axle Preparation.............................................................................................................................13
Axle Component Installation ............................................................................................................16
Axle Hose Installation ...............................................................................................................16
Additional Axles .......................................................................................................................17
Axle Vent Installation.................................................................................................................18
Spindle Plug Installation............................................................................................................20
Hubcap Installation ..................................................................................................................21
Tire Hose Installation ................................................................................................................23
Controller Installation......................................................................................................................24
Manifold Installation .......................................................................................................................25
Control Line Installation ..................................................................................................................26
Electrical Component Installation .....................................................................................................33

3
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
Wire Harness Options And Details ..............................................................................................33
Standard Wire Harness Installation.............................................................................................34
Abs Junction Wire Harness Installation .......................................................................................34
Adding Restraint To Wiring ........................................................................................................34
Trailer-Mounted Indicator Lamp Installation .................................................................................35
System integrity check ........................................................................................................................35
System setup......................................................................................................................................35
Decal Location...............................................................................................................................36
Troubleshooting..................................................................................................................................37
Troubleshooting procedure ..............................................................................................................37
Troubleshooting Matrix ...................................................................................................................38
List of Effects with Descriptions ........................................................................................................39
Probable Causes with Recommended Fix..........................................................................................40
SERVICE Procedures ...........................................................................................................................44
Tools Required...............................................................................................................................44
Inspections and Inspection Intervals .................................................................................................44
Every Three Months ..................................................................................................................44
Every 12 months......................................................................................................................44
In The Event Of A Leak ....................................................................................................................44
Checking for Air Leaks ....................................................................................................................44
Indicator Lamp Test........................................................................................................................45
Manually Check Tire Pressure..........................................................................................................46
Disable TIREMAAX®TIS ...................................................................................................................47
Setting CP Target Pressure ..............................................................................................................48
Required Tools And Resources...................................................................................................48
Checking CP Delivery Pressure ..................................................................................................48
Adjusting CP Delivery Pressure ..................................................................................................49
Restore CP System To Normal Operation.....................................................................................49
Setting TIREMAAX®PRO Target Pressure ...........................................................................................50
Required Tools And Resources...................................................................................................50
Checking PRO Cold Target Pressures..........................................................................................51
Adjusting PRO Cold Target Pressures..........................................................................................51
Wiring Harness Replacement...........................................................................................................53
Replacing Premium ABS Junction Harness..................................................................................53
Controller Assembly Replacement ....................................................................................................53
Removal .................................................................................................................................53
Installation ..............................................................................................................................53
Wheel Removal And Installation.......................................................................................................54
Appendix A: Glossary.......................................................................................................................... 55
Appendix B: Expected Performance ..................................................................................................... 56

4T51002 E
InstallatIon, servIce and troubleshootIng Procedures
CONVENTIONS APPLIED IN THIS
DOCUMENT
This section explains the techniques used in this
document to convey important information, safety
issues, how to contact Hendrickson and how to apply
hyperlinks.
EXPLANATION OF SIGNAL WORDS
Hazard signal words (such as DANGER, WARNING
or CAUTION) appear in various locations throughout
this publication. Information accented by one of these
signal words must be observed at all times. Additional
notes are utilized to emphasize areas of procedural
importance and provide suggestions for ease of repair.
The following definitions comply with ANSI Z535.4
and indicate the use of safety signal words as they
appear throughout the publication.
DANGER: INDICATES IMMEDIATE HAZARDS
WHICH WILL RESULT IN SEVERE
PERSONAL INJURY OR DEATH.
WARNING: Indicates hazards or unsafe practices
which could result in severe personal
injury or death.
CAUTION: Indicates a hazardous situation
which, if not avoided, could result in
minor or moderate injury.
NOTICE: Indicates hazards or unsafe practices
which could result in damage to
machine or equipment.
IMPORTANT: An operating procedure, practice
or condition that is essential to
emphasize.
Safety alert symbol used to indicate
a condition exists that may result in
personal injury or harm to individuals.
It must be applied to DANGER,
WARNING and CAUTION statements
which emphasize severity.
LINKS
This documents includes links that can be applied
when viewed electronically. Links are identified by a
dark grey line under the linked text.
GENERAL SERVICE NOTES
IMPORTANT: Special attention should be paid to the
information included in EXPLANATION
OF SIGNAL WORDS.
Before you begin:
Read, understand and comply with:
• All instructions and procedures.
• All signal word (CAUTION, WARNING and
DANGER) statements to help avoid personal injury
or property damage.
• Company’s maintenance, service, installation and
diagnostic practices.
• Vehicle manufacturer’s safety instructions when
working on the vehicle.
• Vehicle manufacturer’s instructions for
recommended practices not described in this
manual.
• Local safety regulations.
DURING SERVICE:
• Work must be carried out by trained personnel.
• Sudden release of tensioned springs (e.g. the
spring brake part of the brake chamber or the brake
return spring) may cause injury.
• Use recommended tools only.
• Before releasing trailer back into service, perform
operational checks and test the trailer to make sure
brakes are working correctly.
NOTICE: While the parking brake is engaged,
TIREMAAX®PRO delivery air pressure
exhausts to zero psi. Wheel valves
close to isolate tires from the system.
WARNING: While servicing the TIREMAAX PRO
system, it may be necessary to
disengage the emergency brakes
to allow the controller to function.
Trailer wheels must be chocked
during these procedures.
Hendrickson reserves the right to make changes and
improvements to its products and publications at any
time. Consult the Hendrickson website
(www.hendrickson-intl.com) for the latest version of
this manual.

5
T51002 E
InstallatIon, servIce and troubleshootIng Procedures
IMPORTANT SAFETY NOTICES
Proper maintenance, service and repair is important
to the reliable operation of the suspension system
and components. The procedures recommended by
Hendrickson and described in this publication are
methods of performing inspection, maintenance,
service and repair.
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 can cause damage to the vehicle and
other property, personal injury, an unsafe operating
condition or void the manufacturer’s warranty.
Carefully read, understand and follow all safety related
information within this publication.
WARNING:DO NOT modify or rework parts.
Use ONLY Hendrickson authorized
replacement parts. Use of substitute,
modified or replacement parts not
authorized by Hendrickson may not
meet Hendrickson’s specifications. It
can also result in failure of the part,
loss of vehicle control and possible
personal injury or property damage.
Do not modify parts without written
authorization from Hendrickson.
WARNING: Always wear proper eye protection
and other required PPE (personal
protective equipment) when
performing vehicle maintenance,
repair or service. Follow federal,
state and local regulations as
appropriate.
WARNING: Solvent cleaners can be flammable,
poisonous and can cause burns. To
help avoid serious personal injury,
carefully follow the manufacturer’s
product instructions and guidelines
and the following procedures:
• Wear proper eye protection.
• Wear clothing that protects your
skin.
• Work in a well ventilated area.
• DO NOT use gasoline, or solvents
that contain gasoline. Gasoline
can explode.
• Hot solution tanks or alkaline
solutions must be used correctly.
Follow the manufacturer’s
recommended instructions and
guidelines carefully to help
prevent personal accident or
injury.
WARNING: The following precautions and
considerations should be applied
when handling brake lining:
• Compressed air or dry brushing
should never be used for cleaning
brake assemblies or work area.
• Follow applicable shop, local,
state and federal safe practices for
working with and disposal of brake
lining materials.
• Hendrickson recommends that
workers doing brake work should
take steps to minimize exposure
to airborne brake lining particles.
Proper procedures to reduce
exposure include working in well
ventilated area, segregation of
areas where brake work is done,
use of local filtered ventilation
systems or use of enclosed cells
with filtered vacuums.
• Material Safety Data Sheets
(MSDS) on this product, as
required by OSHA, are available
online from Hendrickson.
CAUTION: A mechanic using a service
procedure or tool which has not been
recommended by Hendrickson must
first satisfy himself that neither his
safety nor the vehicle’s safety will
be jeopardized by the method or
tool selected. Individuals deviating
in any manner from the provided
instructions assume all risks of
consequential personal injury or
damage to equipment.