SAF PosiLift AN Manual

XL-AS20067BM-en-US
Installation and
Maintenance Manual
PosiLift AN™Air Lift
 Fixed Frame CBXAN Series
PosiLift AS™Air Lift
 Fixed Frame CBXAS Series

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Contents
Contents Page
Introduction......................................................................... 2
Warranty.............................................................................. 2
Notes, Cautions, and Warnings............................................. 2
Section 1 – General Safety Instructions ................................ 3
Section 2 – Welding Standards............................................. 4
Section 3 – PosiLift AN / AS Component List ......................... 5
Section 4 – PosiLift AN / AS Installation Instructions............. 6
Section 5 – Air Control System with PosiLift AN / AS
Manual Lift............................................................8
Section 6 – Air Control System with PosiLift AN / AS
Solenoid Lift.............................................................. 9
Introduction
This manual provides the information necessary for the
care, maintenance, inspection, and safe operation of the
PosiLift AN and PosiLift AS Air Lift.
PosiLift AN and PosiLift AS are designed and engineered
to provide a trouble-free service. In the event of a minor
breakdown, such as a loss of pressure in the air springs, drive
CAUTIOUSLY at slow speed to the nearest service facility.
PosiLift AN and PosiLift AS use air drawn from the tractor air
system to pressurize the air springs.
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.
Contents Page
Section 7 – Pre-Operational Checklist................................. 10
Section 8 – SwingAlign™ Axle Alignment .......................... 11
Section 9 – Service Repair Kits (SRK).................................. 12
Section 10 – Hanger Mounted Lift Bracket Replacement..... 16
Section 11 – Beam Mounted Lift Bracket Replacement ....... 18
Section 12 – PosiLift AN / AS Air Spring Replacement ......... 19
Section 13 – Pivot Connection Rubber Bushing Replacement...20
Section 14 – Torque Specifications ..................................... 24
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.

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
General Safety Instructions
1. General Safety Instructions
Read and observe all Warning and Caution hazard alert
messages in this publication. They provide information
that can help prevent serious personal injury, damage to
components, or both.
Failure to properly support the vehicle and
axles prior to commencing work could
create a crush hazard which, if not avoided,
could result in death or serious injury.
Failure to follow manufacturer’s instructions
regarding spring brake pressure or air
pressure control could allow uncontrolled
release of energy which, if not avoided,
could result in death or serious injury.
NOTE: In the United States, workshop safety requirements
are defined by federal and/or state Occupational
Safety and Health Act (OSHA). Equivalent laws could
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.
Please observe the following safety instructions in order to maintain
the operational and road safety of the suspension system.
1. The wheel contact surfaces between the wheel and hub
MUST NOT be additionally painted. The 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.
2. Only the wheel and tire sizes approved by the trailer
builder may be used.
3. Before operating vehicle, ensure that the maximum
permissible axle load is NOT exceeded and that the
load is distributed equally and uniformly.
4. Ensure that the brakes are NOT overheated by
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.
5. The parking brake MUST NOT be immediately applied when
the brakes are overheated, as the brake drums or discs may
be damaged by different stress fields during cooling.
6. Observe the operating recommendation of the trailer
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.
7. All suspension and axles systems require routine service,
inspection and maintenance in order to maintain optimum
performance and operational safety as well as an opportunity
to recognize wear.
8. 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.
9. Contact a qualified towing and/or service company to
assist in repairing vehicle or to move it to a qualified
repair facility. DO NOT operate the vehicle in the absence
of suspension air pressure.
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.
We highly recommend the use of only SAF-HOLLAND®
Original Parts.
A list of SAF-HOLLAND technical support locations to
supply SAF-HOLLAND Original Parts can be found at
www.safholland.us or contact SAF-HOLLAND Customer
Service at 888-396-6501. Updates to this manual will be
published as necessary on the internet at www.safholland.us.

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Welding Standards
2. Welding Standards
2.1 Scope
When welding is required for the suspension repairs, observe
the requirements below. This specification applies to all
components supplied by SAF-HOLLAND, and its products.
The customer assumes all responsibility for weld integrity if
weld material and procedure differ from those listed below.
2.2 Workmanship
All welding on SAF-HOLLAND products MUST be performed by
a welder qualified according to the appropriate AWS standard
for the weld being made or an equivalent standard. It is the
responsibility of the customer to provide good workmanship
when welding on SAF-HOLLAND products.
2.3 Material
Items to be welded that are made from low carbon or high-strength
alloy steel are to be welded with AWS filler metal specification
AWS A5.18, filler metal classification ER-70S-3, ER-70S-6 or
equivalent unless specified on the installation drawing.
NOTE: Any substitution for filler material from the above
standard must comply, as a minimum, with the
following mechanical properties:
Tensile Strength - 72k psi (496 MPa)
Yield Strength - 60k psi (414 MPa)
Charpy V Notch - 20 ft.-lbs. (27 N•m) at 0° F (-17.7° C)
% Elongation - 22%
The recommended welding gas for gas metal arc welding
(GMAW) is 90% Argon / 10% CO2. If a different gas is used,
welds must comply with penetration requirements illustrated
(Figure 1). Where the installation drawing specifies different
than above, the drawing shall prevail.
2.4 Procedures
Tack welds used for positioning components are to be located
in the center of the final weld, where practical. Tack weld
should be completely fused to the finish weld. DO NOT break
arc at the end of the weld. Back up all finish welds at least
1/2" (12.7 mm) or a sufficient amount to prevent craters
at the end of the weld. Where weld is illustrated to go
around corners, it is assumed the corner represents a
stress concentration area. DO NOT start or stop weld within
1" (25.4 mm) of the corner. Particular care should be taken to
prevent undercutting in this area.
2.5 Weld Size
If weld size is NOT specified, the effective throat of the weld
MUST be no smaller than the thinnest material being welded
(Figure 1).
Figure 1
LACK OF FUSION OF
ANY KIND IN THIS AREA
IS NOT ACCEPTABLE AT
ANY TIME
PENETRATION AS MEASURED
THROUGH SEAM
TARGET PENETRATION TO BE
10% OF THINNEST MATERIAL
FROM INTERSECTION OF FILLET
AS ILLUSTRATED
TARGET PENETRATION

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
PosiLift AN / AS Component List
ITEM DESCRIPTION QTY
1 Lift Bracket, Hanger Mounted 2
2 Plate, Mounting, Air Spring Lift 2
3 Plate, Lift Mounting 2
4 Lift Assembly, Beam Mounted 2
5Air Spring Assembly 2
6 Bolt, Hex .38-16 x 1 GR 5 4
7 Washer, Lock 0.41 4
8 TC Bolt, 7/8-9 UNC 2A 2
9 Lock Nut, 7/8-9 - TC 2
ITEM DESCRIPTION QTY
10 Collar, Bolt 4
11 Washer, 7/8" - TC 2
12 Washer 4
13 Nut, Hex 0.5-13 GR B 4
14 Nut, Prev Torque Hex Flange 0.5-13 GR B 8
15 Washer, Lock 0.53 4
16 Cap Screw, Hex HD 0.5-13 x 1.75 GR 5 ZC 8
17 Fitting, 90 Degree Push-Connect 2
1
2
5
16
911
10
12
3
14
14
7
6
16
17
8
10
12
13
15
4
NOTE: Item 8, Pivot Bolt, comes from the factory with a standard Round Head 7/8-9
UNC Tension Control Bolt. Replacement parts will be provided with a E-20 Spline
Head. Length will vary between Posilift AN (7.50") & Posilift AS (8.50")
3. PosiLift AN / AS Component List

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 3
Installation Instructions
4. PosiLift AN / AS Installation
IMPORTANT: The trailer MUST be unloaded before
beginning service procedures.
1. On a level surface, support the front of the trailer with
either a kingpin stand, landing gear, or while coupled
to a tractor.
2. Raise the trailer frame approximately 2" (51 mm) above
the suspension’s specified ride height (Figure 2).
3. At the suspension’s specified ride height, place multiple
jack stands under the vehicle's frame per OEM specified
locations, then lower the trailer onto the jack stands.
Failure to properly support the suspension
during maintenance could create a crush
hazard which, if not avoided, could result
in death or serious injury.
4. Exhaust all the air from the system by:
a. Disconnect the height control valve lower link connection
and rotate the height control valve control arm down
(approximately 20°) to exhaust position.
b. Disconnect the air supply line from the air springs.
5. Set the parking brakes and chock the tires.
Failure to completely exhaust air springs
and chock the tires prior to removal
could result in unexpected vehicle
movement which, if not avoided, could
result in death or serious injury.
IMPORTANT: If the air spring has a leak and is deflated,
Step 3 MUST still be performed.
6. Raise the axle that will become the lift axle until the air
spring is in the full up position and support with jack stands.
7. Remove the pivot hardware from both suspension frame
brackets and discard.
8. Inspect the suspension frame brackets and other
components for excessive wear.
Failure to replace worn components
could compromise suspension
performance which, if not avoided, could
result in component or property damage.
9. Place the hanger mounted lift bracket under the
suspension frame bracket and attach the tie plate, 1/2" bolts
and nuts to connect the two components. (Figure 3).
Figure 2
“A”
RIDE HEIGHT
SUSPENSION
FRAME BRACKET
TIE PLATE
(INTERNAL)
LIFT BRACKET

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Installation Instructions
Figure 4
10. Attach the beam mounted lift bracket under the trailing
arm with 1/2" bolts, washers, and nuts.
11. Install the PosiLift air spring to both the hanger mounted
and beam mounted lift brackets (Figure 4).
NOTE: Air spring should be mounted using inboard holes
(Figure 5).
12. Insert the equalizing beam and new pivot connection
hardware.
13. Lower axle to ride height and re-support with jack stands.
 Shear Bolt - Tighten connection until spline shears
IMPORTANT: Make sure the lift bracket is properly
positioned to the suspension frame
bracket and the tie plate is attached
before tightening the pivot connections
(Figure 6).
Failure to properly position the lift
bracket could result in component
interference which, if not avoided, could
result in component or property damage.
NOTE: Make sure the SwingAlign™ washers and
components are in place prior to tightening
the connection.
14. Connect the PosiLift air spring to the air control system.
For plumbing instructions and diagram for manual lift,
refer to Section 5 and solenoid styles refer to Section 6.
15. Reinstall the height control valve linkage to the lower
height control valve tab and properly torque the fasteners.
16. Lower the axle until the tires are back on the ground
and remove the jack stand supporting the axle only.
17. Increase the suspension air system to proper operating
pressure and check for leaks by applying a soapy water
solution and checking for bubbles at all connections and
fittings. If leaks are found, service as necessary.
IMPORTANT: It is the responsibility of the air system
installer to secure all air lines and check
for air leaks. If air leaks are detected,
repair as required.
Failure to eliminate air leaks could
compromise the suspension performance
which, if not avoided, could result in
component or property damage.
Figure 6
SUSPENSION
FRAME BRACKET
TIE PLATE
(INTERNAL)
LIFT BRACKET
Figure 5
REAR VIEW FRONT VIEW
INBOARD
MOUNTING
HOLES
INBOARD SIDE
FRAME BRACKET
HANGER MOUNTED
LIFT BRACKET
1/2" FLANGE
NUTS
POSILIFT
AIR SPRING
BEAM MOUNTED
LIFT BLOCK 3/8" BOLTS
18. Remove the remaining jack stands and cycle the new lift
suspension to make sure there is 1" clearance between
all suspension and lift components to the air springs.
19. Re-align the axles. Refer to Section 8.

8XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Standard Air Control System with PosiLift AN / AS
5. Manual Lift Air Control System
The manual lift valve air control system (Figure 7) depicts
a standard tandem axle fixed frame suspension
plumbing diagram.
The air control system uses air drawn from the tractor
air system to pressurize the suspension’s air springs. The
suspension, working with the air control system, provides
optimum suspension performance only when all air control
system components are installed and operating properly.
IMPORTANT: Make certain that all air lines and valves
are free from obstruction through the full
operational range of the suspension.
The height control valve regulates the air pressure required for
varying capacities of load. It is critical to make sure the height
control valve is set at the proper suspension ride height.
Failure to match the linkage length to
the design ride height could result in
improper suspension height which,
if not avoided, could result in damage
to trailer components.
The manual air release valve isolates the height control valve
out of the air control system, exhausts lift axle suspension air
springs and inflates the PosiLift air springs when activated.
Figure 7
SUSPENSION
AIR SPRING
HEIGHT
CONTROL
VALVE
MANUAL AIR
RELEASE VALVE
FROM SUPPLY
EXHAUST
CONTROL ARM
(NEUTRAL POSITION)
PRESSURE
PROTECTION
VALVE
AIR RESERVOIR
POSILIFT AIR
SPRING
POSILIFT
AIR SPRING
END OF PPV THAT READS “IN”
CONNECTS TO AIR RESERVOIR
SUSPENSION
AIR SPRING
SUSPENSION
AIR SPRING
TO POSILIFT
AIR SPRINGS
TO SUSPENSION
AIR SPRINGS
FROM HCV

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Standard Air Control System with PosiLift AN / AS
6. Solenoid Lift Air Control System
The solenoid lift valve air control system (Figure 8) depicts
a standard tandem axle fixed frame suspension
plumbing diagram.
The air control system uses air drawn from the tractor
air system to pressurize the suspension’s air springs. The
suspension, working with the air control system, provides
optimum suspension performance only when all air control
system components are installed and operating properly.
IMPORTANT: Ensure that all air lines and valves are
free from obstruction through the full
operational range of the suspension.
The height control valve regulates the air pressure required for
varying capacities of load. It is critical to make sure the height
control valve is set at the proper suspension ride height.
Failure to match the linkage length to
the design ride height could result in
improper suspension height which,
if not avoided, could result in damage
to trailer components.
The solenoid air release valve isolates the height control valve
out of the air control system, exhausts lift axle suspension air
springs and inflates the PosiLift air springs when activated.
Figure 8
SUSPENSION
AIR SPRING
HEIGHT
CONTROL
VALVE
SOLENOID
AIR RELEASE
VALVE
TO POSILIFT
AIR SPRINGS
FROM SUPPLY
EXHAUST
TO SUSPENSION
AIR SPRINGS
FROM HCV
SUPPLY
CONTROL ARM
(NEUTRAL POSITION)
PRESSURE
PROTECTION
VALVE
AIR RESERVOIR
POSILIFT AIR SPRING
POSILIFT AIR
SPRING
END OF PPV THAT READS “IN”
CONNECTS TO AIR RESERVOIR
SUSPENSION
AIR SPRING
SUSPENSION
AIR SPRING

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Pre-Operational Checklist
7. Pre-Operation
1. With the vehicle unloaded and on a level surface, chock
the tires to prevent vehicle movement.
NOTE: In the United States, workshop safety requirements
are defined by federal and/or state Occupational
Safety and Health Act. Equivalent laws could 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.
Failure to chock the tires prior to
commencing work could allow the
vehicle to move which, if not avoided,
could result in death or serious injury.
2. Build the air pressure above 85 psig (5.9 bars).
3. Shut off the vehicle and visually check all air control
system fittings for air leaks by applying a soapy water
solution and checking for bubbles at all air connections
and fittings. Check the air springs for equal firmness
(Figure 9).
4. Exhaust the air from suspension air springs using the
valve that controls the PosiLift. Refer to plumbing
diagrams in Sections 5 and 6.
5. Verify that the 1/2" and 3/4" air spring mounting nuts are
properly torqued to 30-40 ft.-lbs. (40-54 N•m) (Figure 9).
6. With the axle lifted, check for 1" (25 mm) minimum
clearance around the air springs (Figure 9).
7. Check the axle alignment according to procedures in
Section 8.
IMPORTANT: The SwingAlign design maintains proper
alignment under correct torque without
welding; DO NOT weld.
NOTE: SwingAlign pivot connections are on roadside and
fixed alignment pivot connections are on curbside.
Refer to Section 8 for SwingAlign (non-welded)
Connection Axle Alignment procedure.
Figure 9
3/4" AIR
SPRING NUTS
1/2" AIR SPRING NUT
(BOTTOM OF AIR SPRING)
SHOCK ABSORBER
AIR SPRINGS
LIFT AIR SPRING
PIVOT BOLT
FRAME
BRACKET

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 12
Figure 11
SwingAlign Axle Alignment
8. SwingAlign Axle Alignment
IMPORTANT: Axle alignment should always be done
while the trailer is empty.
8.1 Alignment Preparation
1. Pull the trailer in a straight line for a sufficient distance
to ensure there are no binds in the suspension.
2. Disengage the trailer parking brakes and make sure the
trailer is empty.
3. Manually measure or use an optical device specifically
designed for alignment measuring to determine
the following:
a. Measure the distance from the kingpin to the centerline
of the front axle spindles. It is recommended that
spindle extensions be utilized.
b. Dimensions A and B (Figure 10) MUST be equal to
within 1/8" (3 mm).
c. Measure the distance from the centerline of the front
axle spindles to the centerline of the rear axle spindles.
d. Dimensions C and D (Figure 10) MUST be equal to
within 1/16" (1 mm).
8.2 Alignment Instructions
1. Using the measurements from Step 3, align each axle by
rotating the alignment bolt head on the front face of the
roadside frame bracket clockwise to move axle forward
(A arrows); counterclockwise to move axle rearward
(B arrows) (Figure 11).
IMPORTANT: DO NOT loosen the pivot bolts.
IMPORTANT: Two (2) scribe lines on the side of the frame
bracket indicate maximum adjustment for
axle alignment. If the edge of the visible
washer touches either scribe line, the
SwingAlign axle alignment adjustment
is “out of stroke.” Inspect and repair
trailer components as necessary and
realign.(Figure 12).
IMPORTANT: The SwingAlign design maintains proper
alignment without welding or without
loosening of the pivot connection. DO
NOT weld alignment bolt or pivot bolts
(Figure 12).
Figure 10
A = B ± 1/8" (3 mm)
C = D ± 1/16" (1 mm)
D
KINGPIN
B
A
C
ALIGNMENT BOLT ASSEMBLY
WASHER ALIGNMENT PLATES
SCRIBE
LINES
PAN HEAD
TORSION BOLT
ALIGNMENT BOLT
ALIGNMENT
BOLT
WASHER
“A” ARROWS - AXLE FORWARD
“B” ARROWS - AXLE REARWARD
NOTE: 1/2 TURN OF FREE PLAY
IS ACCEPTABLE

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Service Repair Kits
PIVOT BUSHING REPLACEMENT KIT: 48100698
ITEM DESCRIPTION PART NUMBER QTY.
1 Pivot Bushing 90008286 2
2E-20 Head Spline Bolt, 7/8-9 UNC
2A x 7.50 2015100000160 2
3 Lock Nut, 7/8-9 - TC 2061100000260 2
4 Washer 93600579 4
5 Collar, Bolt 2045100000020 4
6 Washer, 7/8" - TC 2082100000210 4
NOTE: Kit contains parts to replace both sides of axle. Parts for one side shown.
9. Service Repair Kits
CBXAN SERIES
1
5
2
65
4
1
3
6
5
4
3
3
4
452
PIVOT BUSHING REPLACEMENT KIT: 48100695
ITEM DESCRIPTION PART NUMBER QTY.
1 Pivot Bushing 90008247 2
2E-20 Head Spline Bolt, 7/8-9 UNC
2A x 8.50 2015100000170 2
3 Lock Nut, 7/8-9 - TC 2061100000260 2
4 Washer 93600579 4
5 Collar, Bolt 2045100000020 4
6 Washer, 7/8" - TC 2082100000210 4
NOTE: Kit contains parts to replace both sides of axle. Parts for one side shown.
CBXAS SERIES
PIVOT CONNECTION REPLACEMENT KIT: 48100700
ITEM DESCRIPTION PART NUMBER QTY.
1E-20 Head Spline Bolt, 7/8-9 UNC
2A x 7.50 2015100000160 2
2 Lock Nut, 7/8-9 - TC 2061100000260 2
3 Washer 93600579 4
4 Collar, Bolt 2045100000020 4
5 Washer, 7/8" - TC 2082100000210 4
NOTE: Kit contains parts to replace both sides of axle. Parts for one side shown.
CBXAN SERIES
PIVOT CONNECTION REPLACEMENT KIT: 48100697
ITEM DESCRIPTION PART NUMBER QTY.
1E-20 Head Spline Bolt, 7/8-9 UNC
2A x 8.50 2015100000170 2
2 Lock Nut, 7/8-9 - TC 2061100000260 2
3 Washer 93600579 4
4 Collar, Bolt 2045100000020 4
5 Washer, 7/8" - TC 2082100000210 4
NOTE: Kit contains parts to replace both sides of axle. Parts for one side shown.
CBXAS SERIES

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and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Service Repair Kits
POSILIFT AN KIT: 48100732
ITEM DESCRIPTION PART NUMBER QTY.
1 Lift Bracket - Narrow Hanger 90027033 1
2 Plate, Mounting, Air Spring Lift 90035023 1
3 Plate, Lift Mounting 90035026 1
4 Lift Assembly, Beam Mounted 90550388 1
5Air Spring Assembly 90557366 1
6 Bolt, Hex .38-16 x 1 GR 5 93202571 2
7 Washer, Lock 0.41 93600069 2
8E-20 Head Spline Bolt, 7/8-9 UNC
2A x 7.50 2015100000160 1
9 Lock Nut, 7/8-9 - TC 2061100000260 1
10 Collar, Bolt 2045100000020 2
11 Washer, 7/8" - TC 2082100000210 1
12 Washer 93600579 2
13 Nut, Hex 0.5-13 GR B 93400136 2
14 Nut, Prev Torque Hex Flange 0.5-13
GR B 93400623 4
15 Washer, Lock 0.53 93600072 2
16 Cap Screw, Hex HD 0.5-13 x 1.75
GR 5 ZC XB-HHC-001-33 4
17 Fitting, 90 Degree Push-Connect 90060058 1
POSILIFT AS KIT: 48100759
ITEM DESCRIPTION PART NUMBER QTY.
1 Lift Bracket - Standard Hanger 90027302 1
2 Plate, Mounting, Air Spring Lift 90035023 1
3 Plate, Lift Mounting 90035026 1
4 Lift Assembly, Beam Mounted 90550388 1
5Air Spring Assembly 90557366 1
6 Bolt, Hex .38-16 x 1 GR 5 93202571 2
7 Washer, Lock 0.41 93600069 2
8E-20 Head Spline Bolt, 7/8-9 UNC
2A x 8.50 2015100000170 1
9 Lock Nut, 7/8-9 - TC 2061100000260 1
10 Collar, Bolt 2045100000020 2
11 Washer, 7/8" - TC 2082100000210 1
12 Washer 93600579 2
13 Nut, Hex 0.5-13 GR B 93400136 2
14 Nut, Prev Torque Hex Flange 0.5-13
GR B 93400623 4
15 Washer, Lock 0.53 93600072 2
16 Cap Screw, Hex HD 0.5-13 x 1.75
GR 5 ZC XB-HHC-001-33 4
17 Fitting, 90 Degree Push-Connect 90060058 1
NOTE: This kit is for one side of axle only.
NOTE: This kit is for one side of axle only.
3
9
11
10
12
14
12
17
10
16
14
81
52
16
15
13
76
4
CBXAN SERIES
CBXAS SERIES

14 XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Service Repair Kits
8
3
62
59
9
10 10
7
7
1
5
SWINGALIGN REPLACEMENT KIT: 48100699
ITEM DESCRIPTION PART NUMBER QTY.
1Plate, Alignment 90027004 2
2 Yoke, SwingAlign - Narrow Hanger 90045758 1
3 Threaded Rod Assembly - CBXA Series 90550387 1
4E-20 Head Spline Bolt, 7/8-9 UNC
2A x 7.50 2015100000160 2
5 Lock Nut, 7/8-9 - TC 2061100000260 2
6Nut, Prev Torque Hex Flange 0.5-13
GR B 93400623 2
7 Washer 93600579 4
8Cap Screw, Hex HD 0.5-13 x 1.75
GR 5 ZC XB-HHC-001-33 2
9 Washer, Lock 0.53 93600072 2
10 Collar, Bolt 2045100000020 4
11 Washer, 7/8" - TC 2082100000210 4
SWINGALIGN REPLACEMENT KIT: 48100696
ITEM DESCRIPTION PART NUMBER QTY.
1Plate, Alignment 90531339 2
2 Yoke, SwingAlign - Standard Hanger 90045491 1
3Threaded Rod Assembly 90548007 1
4E-20 Head Spline Bolt, 7/8-9 UNC
2A x 8.50 2015100000170 2
5 Lock Nut, 7/8-9 - TC 2061100000260 2
6Nut, Prev Torque Hex Flange 0.5-13
GR B 93400623 2
7 Washer 93600579 2
8Cap Screw, Hex HD 0.5-13 x 1.75
GR 5 ZC XB-HHC-001-33 2
9 Washer, Lock 0.53 93600072 2
10 Collar, Bolt 2045100000020 4
11 Washer, 7/8" - TC 2082100000210 4
NOTE: This kit is for one side of axle only.
NOTE: This kit is for one side of axle only.
CBXAN SERIES
CBXAS SERIES

15
XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Service Repair Kits
Manual Valve Kit, AC-84M-3X
Part Number: 50860009
ITEM DESCRIPTION PART NUMBER QTY.
1Manual Valve 50860009 1
Solenoid Valve Kit, AC 845-3XE
Part Number: 50860011
ITEM DESCRIPTION PART NUMBER QTY.
1Solenoid Valve 50860011 1

16 XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Hanger Mounted Lift Bracket Replacement
Figure 15
Figure 14
Figure 13
10. Hanger Mounted Lift Bracket
Replacement
IMPORTANT: The trailer MUST be unloaded before
beginning service procedures.
1. With the vehicle unloaded and on a level surface, exhaust
all air from the system.
2. Support the suspension beams with jack stands to
prevent the equalizing beam pivot from moving.
Failure to exhaust the suspension air and
chock the tires prior to beginning
maintenance could allow vehicle
movement which, if not avoided, could
result in death or serious injury.
IMPORTANT: If air spring has a leak and is deflated,
Step 1 MUST still be performed.
3. Remove the air line and PosiLift air spring from the lift
bracket (Figure 13).
4. Remove the two (2) 1/2" bolts and nuts from the tie
plate between the hanger and hanger mounted lift
bracket (Figure 14).
5. Remove the pivot connection hardware.
6. Place the hanger mounted lift bracket under the
suspension frame bracket and install the two (2) 1/2"
nuts and bolts (Figure 14). Refer to Section 14 for
torque requirements.
7. Install PosiLift air spring into the hanger mounted lift
bracket (Figure 15).
NOTE: Air spring should be mounted using the inboard
mounting holes (Figure 15).
FRAME
BRACKET
1/2" NUTS
FRAME
BRACKET
TIE PLATE
1/2" NUTS
POSILIFT
AIR SPRING
HANGER MOUNTED
LIFT BRACKET
POSILIFT AIR SPRING

17
XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Hanger Mounted Lift Bracket Replacement
Figure 17
Figure 16
8. Install the pivot connection hardware (Figure 16).
NOTE: Make sure the SwingAlign washers and
components are in place prior to tightening the
pivot connection. Tighten until spline is sheared.
9. Re-attach the air line to the PosiLift air spring.
NOTE: Before attaching to the PosiLift air spring ensure
that the air line is fed through the grommet in
the new lift bracket (Figure 17).
10. Check for air leaks by applying a soapy water solution
and checking for bubbles at all connections and fittings.
If leaks are found, repair as necessary.
IMPORTANT: It is the responsibility of the air system
installer to secure all air lines and check
for air leaks. If air leaks are detected,
repair as required.
Failure to eliminate air leaks could
compromise the suspension performance
which, if not avoided, could result in
component or property damage.
11. Remove the jack stands.
NOTE: It is recommended to re-align the trailer axle
after the pivot connection is taken apart. Refer to
Section 8 for alignment procedures.
WASHER
WASHER
COLLAR
COLLAR
PIVOT
NUT
PIVOT
BOLT
FRAME
BRACKET

18 XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 20
Figure 19
Figure 18
Beam Mounted LIft Bracket Replacement
11. Beam Mounted Lift Bracket
Replacement
IMPORTANT: The trailer MUST be unloaded before
beginning service procedures.
1. With the vehicle unloaded and on a level surface, exhaust
all air from the system.
2. Support the suspension beams with jack stands to
prevent the equalizing beam pivot from moving.
Failure to exhaust the suspension air and
chock the tires prior to beginning
maintenance could allow vehicle
movement which, if not avoided, could
result in death or serious injury.
IMPORTANT: If air spring has a leak and is deflated,
Step 1 MUST still be performed.
3. Remove the two (2) 3/8" bolts and washers from the beam
mounted lift bracket to the PosiLift air spring.
4. Remove the two (2) 1/2" bolts, washers and nuts from
the beam mounted lift bracket to the cast beam.
5. Install the new beam mounted lift bracket by placing the
lift bracket under the cast beam and installing the two (2)
sets of 1/2" bolts, washers and nuts (Figure 18).
Refer to Section 14 for torque requirements.
6. Install PosiLift air spring into the beam mounted lift
bracket using the two (2) 3/8" bolt and washers to the
inboard mounting holes on the bracket (Figure 19).
Refer to Section 14 for torque requirements.
NOTE: Air spring should be mounted using the inboard
mounting holes (Figure 20).
7. Check for air leaks by applying soapy water solution and
checking for bubbles at all connections and fittings. If
leaks are found, repair as necessary.
IMPORTANT: It is the responsibility of the air system
installer to secure all air lines and check
for air leaks. If air leaks are detected,
repair as required.
Failure to eliminate air leaks could
compromise the suspension performance
which, if not avoided, could result in
component or property damage.
8. Remove the jack stands.
NOTE: It is recommended to re-align the trailer axle
after the pivot connection is taken apart. Refer to
Section 8 for alignment procedures.
FRAME
BRACKET
BEAM MOUNTED
LIFT BRACKET
AIR SPRING
MOUNTING PLATE
1/2" BOLT, WASHER,
AND NUT
3/8" BOLT AND
LOCK WASHER
POSILIFT
AIR SPRING
FRAME
BRACKET
TIE PLATE
1/2" NUTS
POSILIFT
AIR SPRING
REAR VIEW FRONT VIEW
INBOARD
MOUNTING
HOLES
INBOARD SIDE

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XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 23
Figure 22
PosiLift AN / AS Air Spring Replacement
12. PosiLift AN / AS Air Spring
Replacement
IMPORTANT: The trailer MUST be unloaded before
beginning service procedures.
1. With the vehicle unloaded and on a level surface, exhaust
all air from the system and disconnect the air lines from
the PosiLift air springs.
Failure to exhaust the suspension air and
chock the tires prior to beginning
maintenance could allow vehicle
movement which, if not avoided, could
result in death or serious injury.
IMPORTANT: If air spring has a leak and is deflated,
Step 1 MUST still be performed.
2. Raise lift axle to full up position and support with jack stands.
3. Remove the two (2) 1/2" nuts from the PosiLift air spring
to the hanger mounted lift bracket as well as the two (2)
sets of 3/8" bolts and washers from the beam mounted
lift bracket to the front side of the PosiLift air spring.
4. Install the new PosiLift air spring and air spring mounting
plate to the beam mounted lift bracket and attach with the
two (2) 3/8" bolts and washers (Figure 21).
5. Mount the PosiLift air spring into the hanger mounted
lift bracket and attach with two (2) 1/2" nuts (Figure 22).
Refer to Section 14 for torque requirements.
NOTE: Air spring should be mounted using the inboard
mounting holes (Figure 23).
6. Reattach the air line to the front of the PosiLift air spring.
7. Check for air leaks by applying soapy water solution and
checking for bubbles at all connections and fittings. If
leaks are found, repair as necessary.
IMPORTANT: It is the responsibility of the air system
installer to secure all air lines and check
for air leaks. If air leaks are detected,
repair as required.
Failure to eliminate air leaks could
compromise the suspension performance
which, if not avoided, could result in
component or property damage.
FRAME
BRACKET
INBOARD SIDE
INBOARD
MOUNTING
HOLES
REAR VIEW FRONT VIEW
TIE PLATE
1/2" NUTS
POSILIFT
AIR SPRING
Figure 21
FRAME BRACKET
HANGER MOUNTED
LIFT BRACKET
1/2" FLANGE
NUTS
POSILIFT
AIR SPRING
BEAM MOUNTED
LIFT BLOCK 3/8" BOLTS

20 XL-AS20067BM-en-US · 2021-02-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Component Replacement Instructions
13. Pivot Connection Rubber
Bushing Replacement
IMPORTANT: When replacing the rubber bushing at
the pivot connection, be sure the correct
SAF-HOLLAND Service Repair Kit is used.
Each kit contains all the necessary parts
to service one axle (2 kits per tandem).
Refer to Section 9 for proper Service
Repair Kit. Both pivot connections should
be serviced at the same time.
IMPORTANT: It is recommended that the vehicle be
unloaded before beginning service procedures.
1. Support the vehicle frame with adequate jack stands.
Raise the vehicle up approximately 2" (51 mm) above the
suspension’s specified ride height (Figure 24). Re-adjust
the jack stands so they support the full load of the vehicle.
Failure to properly support suspension
during maintenance could create a crush
hazard which, if not avoided, could
result in death, serious injury or
component damage.
2. Exhaust air from the suspension system by:
 Automatic control – use height control valve by
disconnecting link at lower connection, then rotate
control arm to exhaust (approximately 20° down)
position, or:
 Disconnect the air supply line from the air springs.
3. Disconnect the air spring and shock absorber at lower
connections on both roadside and curbside.
4. Disconnect height control valve linkage at lower
connection.
NOTE: The SAF-HOLLAND bushing service tool,
Part No. 505 44 015 is available to ease removal
and replacement of bushings. Contact your
SAF-HOLLAND distributor for details.
5. Make sure all air has been exhausted from the PosiLift air
spring and the suspension air springs. Disconnect the air line
from the bottom of the PosiLift air spring.
Failure to completely exhaust air springs
prior to removal could result in unexpected
air spring movement which, if not avoided,
could result in minor or moderate injury.
Figure 24
“A”
RIDE HEIGHT