Notes, Cautions, and Warnings ............................................. 2
Section 1 – General Safety Instructions ................................ 3
Model Identification ............................................................. 4
Identification Tag ................................................................. 4
Introduction
This manual provides information necessary for the installation,
service, and Customization for the SAF-HOLLAND® Brake and
Service Chamber.
Read this manual before using or servicing this product and
keep it in a safe location for future reference. Updates to this
manual, which are published as necessary, are available on
the internet at www.safholland.us.
When replacement parts are required, SAF-HOLLAND
recommends the use of only SAF-HOLLAND® Original Parts.
A list of technical support locations that supply SAF-HOLLAND®
Original Parts and an Aftermarket Parts Catalog are available
on the internet at www.safholland.us or contact Customer
Service at 888-396-6501.
Warranty
Refer to the complete warranty for the country in which
the product will be used. A copy of the written warranty is
included with the product or available on the internet at
www.safholland.com.
Section 4 – Mechanical Release of Spring Brakes (Caging) .. 10
Section 5 – Determining The Correct Push Rod Length ........ 12
Notes, Cautions, and Warnings
Before starting any work on the unit, read and understand all
the safety procedures presented in this manual. This manual
contains the terms “NOTE”, “IMPORTANT”, “CAUTION”, and
“WARNING” followed by important product information. These
terms are defined as follows:
NOTE: Includes additional information to enable accurate
and easy performance of procedures.
IMPORTANT: Includes additional information that
if not followed could lead to hindered
product performance.
Used without the safety alert symbol,
indicates a potentially hazardous
situation which, if not avoided, could
result in property damage.
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
1. Safety Instructions
Safety Instructions
General and Servicing Safety Instructions
Read and observe all Warning and Caution hazard alert
messages. The alerts provide information that can help prevent
serious personal injury, damage to components, or both.
Failure to follow the instructions and safety
precautions in this manual could result in
improper servicing or operation leading
to component failure which if not avoided
could result in death or serious injury.
All installations should be performed by a properly
technician using proper/special tools, and safe procedures.
NOTE: In the United States, workshop safety requirements
are defined by federal and/or state Occupational
Safety and Health Act (OSHA). Equivalent laws may
exist in other countries. This manual is written based
on the assumption that OSHA or other applicable
employee safety regulations are followed by the
location where work is performed.
Properly support and secure the vehicle from unexpected
movement when servicing the unit.
Failure to properly support and secure the
vehicle and axles prior to commencing work
could create a crush hazard which, if not
avoided, could result in death or serious injury.
Service both roadside and curbside of an axle. Worn parts
should be replaced in sets. Key components on each axle’s
braking system, such as friction material, rotors and drums
will normally wear over time.
Follow all manufacturer’s instructions on spring pressure
and air pressure controls.
Failure to follow manufacturer’s instructions
regarding spring pressure or air pressure
control could allow unexpected release of
energy which, if not avoided, could result
in death or serious injury.
The wheel contact surfaces between the wheel and hub/drum
MUST NOT be additionally painted.
IMPORTANT: The wheel contact surfaces MUST be clean,
smooth and free from grease.
Failure to keep wheel and hub contact surfaces
clean and clear of foreign material could
allow wheel/hub separations which, if not
avoided, could result in death or serious injury.
Only the wheel and tire sizes approved by SAF-HOLLAND®
can be used.
Tire clearance between tires and the suspension MUST be
regularly monitored and maintained.
Failure to maintain tire clearance between
tires and the nearest point of contact on
the suspension or vehicle could cause fire
or loss of vehicle control which, if not avoided,
could result in death or serious injury.
trained
Operational and Road Safety Instructions
Before operating vehicle, ensure that the maximum permissible
axle load is NOT exceeded and that the load is distributed
equally and uniformly and in accordance with state and
federal bridge laws.
Make sure that the brakes are NOT overheated from
continuous operation.
Failure to minimize the use of brakes during
overheating conditions could result in
deterioration of brake efficiency which, if not
avoided could result in death or serious injury.
Observe the operating recommendation of the truck
manufacturer for off-road operation of the installed axles.
IMPORTANT: The definition of OFF-ROAD means driving
on non-asphalt/non-concrete routes, e.g.
gravel roads, agricultural and forestry tracks,
on construction sites and in gravel pits.
IMPORTANT: Off-road operation of axles beyond
the approved application design could
result in damage and impair suspension
system performance.
Follow the recommended routine maintenance and inspections
described in this manual. These procedures are designed so
that optimum performance and operational safety are achieved.
The suspension springs should always be operated with
a static operating pressure between 20 psi (1.38 bar)
and 107 psi (7.38 bar).
Failure to operate the air springs with a
proper static operating pressure could
cause premature component failure and
loss of vehicle control which, if not avoided,
could result in death or serious injury.
In the event of suspension air pressure loss, quickly reduce
speed as safely as possible and remove the vehicle from
traffic. If unable to remove vehicle from traffic, follow DOT
safety requirements regarding emergency situations.
Contact a qualified towing and/or service company to assist
in repairing the vehicle or to move it to a qualified repair facility.
DO NOT operate the vehicle in the absence of suspension
air pressure; however in the event of an air system failure
while in service, an internal rubber bumper built into the
air spring will make it possible to temporarily operate the
vehicle at reduced speed determined by road conditions.
Operating the vehicle without proper air
pressure can cause tire failure, fire, or loss of
vehicle control which, if not avoided could
result in death or serious injury.
The suspension MUST be lifted when the vehicle is moving
in reverse.
Failure to lift axle when in reverse could
result in tire or axle damage.
The Brake Chamber Serial Tag is located on the top of the
brake chamber (Figure 1).
3. Identification Tag
The sample tag shown will help you interpret the information
on the SAF-HOLLAND
number, country of origin, and manufacturing information are
listed on the tag (Figure 2).
Record your tag numbers below for future quick reference.
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Combination Service and Spring Brake Installation
2. Combination Service and Spring
Brake Installation Instructions
1. With the vehicle on a level surface, set parking brakes
and chock drive tires to prevent the vehicle from rolling
forward or backward.
Failure to properly secure the vehicle prior
to commencing work could create a crush
hazard which, if not avoided, could result
in death or serious injury.
2. Prior to spring brake installation, ensure the spring
brake is caged. If the spring brake is NOT caged, refer to
Section 3.
Failure to cage the spring brake
before installation could prevent the
main spring from fully engaging the
foundation brake components which,
if not avoided could cause insufficient
braking force resulting in death, serious
injury or property damage.
3. Inspect the brake mounting bracket on the axle. The
bracket MUST be free from paint exceeding .01" (.25
mm) thick, debris, burrs, and cracks. The bracket MUST
also be flat to .02" (0.5 mm) (Figure 1).
4. Always mount the brake chamber directly to the bracket.
DO NOT add or insert shims, spacers, washers, or
reinforcing plates between the brake service base and
the bracket (Figure 2).
5. If the brake doesn't have a correct precut push rod, refer
to Section 4 Determine Correct Push Rod Length.
6. Install the clevis and jam nut onto the service push rod
if not already installed. The service push rod should
protrude NO LESS than one thread into the clevis body.
5PSRVFUIFKBNOVUUPGUMCT/tN
7. Before installing the spring brake, move the slack
adjuster arm in the opposite direction to the brake
mounting bracket by turning the hex (use a hand wrench)
until there is enough space for the push rod to fit in.
Figure 1
BRAKE MOUNTING BRACKET
Figure 2
MOUNT BRAKE CHAMBER DIRECTLY
TO THE MOUNTING BRACKET
IMPORTANT: There could be multiple mounting holes on
the brake mounting bracket. Consult the
axle manufacture for the correct location.
Failure to determine the correct mounting
position could cause premature diaphragm
wear or service push rod buckling which,
if not avoided could result property damage.
8. Install the mounting nuts and washers. Torque nuts to
GUMCT/tN
9. Remove cotter pin from clevis. DO NOT discard, these