SAF HOLLAND TS Series User manual

XL-MS196 Rev E
TS and USR Series Mechanical Suspensions
Trailer Tandem Spring Suspension
Capacity 44,000, 55,000 and 60,000 Lbs. GAWR
Maintenance Manual

2
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.
Contents
Contents Page
Introduction......................................................................... 2
Warranty.............................................................................. 2
Notes, Cautions, and Warnings............................................. 2
Section 1 – General Safety Instructions ................................ 3
Section 2 – Model Identification........................................... 4
Section 3 – TS and USR Series Nomenclature........................ 4
Section 4 – Welding Standards ............................................. 5
Section 5 – NS-65-28 Welding Specification ......................... 6
Section 6 – NS-65-30 Welding Specification ......................... 7
TS Series Mechanical Suspension Exploded View.................. 8
TS Series Mechanical Suspension Parts List........................... 9
USR Series Mechanical Suspension Exploded View ............. 10
Contents Page
USR Series Mechanical Suspension Parts List...................... 11
Service Repair Kits ............................................................. 12
Section 7 – Trunnion Bushing Replacement
and Installation................................................ 14
Section 8 – Trunnion Clamp Replacement
and Installation................................................ 15
Section 9 – Axle alignment Procedures............................... 18
Section 10 – Axle alignment Tips........................................ 18
Section 11 – Spring End Pad Replacement.......................... 19
Section 12 – Pre-Operation Check List................................ 20
Section 13 – Torque Specifications ..................................... 21
Section 14 – Routine Maintenance and Daily Inspection..... 22
Introduction
This manual provides the necessary information for the installation,
adjustment, inspection, and operation of the SAF®TS and USR
Series Mechanical Suspensions.
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.
Use only SAF-HOLLAND®Original Parts to service your
TS and USR Series Mechanical Suspensions. 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.
XL-MS196 Rev E · 2019-04-30 · 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.

3
General Safety Instructions
5. The parking brake MUST NOT be immediately applied when
the brakes are overheated, as the brake drums or discs could
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.
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 online
at www.safholland.us.
1. General Safety Instructions
Read and observe all Warning and Caution hazard alert
messages in this publication. The information provided 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.
NOTE: Several maintenance procedures in this manual
require pre-positioning of the brake chamber,
slack adjuster and/or ABS system. Consult the
manufacturer’s manual for procedures on the
proper operation of brake chamber, slack adjuster
and/or ABS system.
IMPORTANT: Key components on each axle’s braking
system, including friction material, rotors
and drums, are intended to wear over time.
Worn parts should be replaced in sets on
both the driver and curbside of an axle.
Failure to follow manufacturer’s instructions
regarding spring pressure or air pressure
control could allow uncontrolled release of
energy which, if not avoided, could result
in death or serious injury.
Please observe the following safety instructions in order to
maintain the operational and road safety of the suspension:
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 the wheel and hub
contact surfaces clean and clear of foreign
material could result in 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 on this suspension.
3. Before operating the 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.
XL-MS196 Rev E · 2019-04-30 · 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.

4XL-MS196 Rev E · 2019-04-30 · 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.
Model Identification and Nomenclature
2. Model Identification
The TS and USR Series suspension serial tag is located on the
spring saddle (Figure 1).
NOTE: This manual applies to the suspension series or
the models listed on the front cover. Determine
the specific model number, write that information
below and refer to it when obtaining information
or replacement parts.
NOTE: Refer to the serial number tag attached to the
spring saddle.
3. TS and USR Series Nomenclature
The sample tag will help interpret the information on the
SAF-HOLLAND, Inc. serial number tag. The model number is on
the first line along with the suspension capacity. The second
line contains the part number and the serial number (Figure 2).
Record the tag numbers below for future quick reference.
Model Number:
Part Number:
Serial Number:
Capacity:
In Service Date:
Figure 2
Figure 1
TS 4400 1
TS-Two Spring
USR-Two Spring, Underslung
Suspension Capacity
44,000 lbs.
50,000 lbs.
60,000 lbs.
Trunnion Clamp Height
1 - 2.5"
2 - 4.5"
3 - 6.5"
4 - 8.5"
SERIAL NUMBER
TAG LOCATION
TS MODEL ILLUSTRATED

5
XL-MS196 Rev E · 2019-04-30 · 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.
Welding Standards
4. Welding Standards
4.1 Scope
This specification applies to all components supplied by
SAF-HOLLAND, and its products. The customer assumes
full responsibility for weld integrity if weld material and
procedures differ from those listed below.
4.2 Workmanship
All welding on SAF-HOLLAND products MUST be performed by
a qualified welder 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.
4.3 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 0o F (-17.7o C)
% Elongation - 22%
Figure 3
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
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 3). Where the installation drawing specifies different
than above, the drawing shall prevail.
4.4 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 shown 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.
4.5 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 3).

6XL-MS196 Rev E · 2019-04-30 · 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.
Welding Standards
5. NS-65-28 Welding Specification
The following welding recommendations are for the field
installation of a SAF two spring, spring end pad assembly for
round axles and should be performed by a qualified welder.
1. The axle tube should be clamped securely in the
proper position.
2. The axle tube and pad assembly MUST be 70° F minimum
and free from dirt, scale and grease.
3. The electrode or wire selected MUST conform to one of
the following specifications:
a. Electrode AWS E-7018 (Oven-Dried)
b. Wire AWS E-70S-3 AWS E-70T-1
Gas C-25 CO2
Volts 19-20 21-23
Amps 180-200 200-220
Wire Diameter .045" .062" Flux Cored
Figure 4
.13"
.25".38"
2.88"
2"2" .75"
STARTSTART
1ST PASS
2ND PASS
3RD PASS
1ST PASS
2ND PASS
3RD PASS
4. Apply welds in the sizes and sequence illustrated in Figure 4.
Fill the crater at the end of the weld between passes.
NOTE: Each weld pass is to be completed in two (2) segments.
1ST PASS 2ND PASS 3RD PASS

7
XL-MS196 Rev E · 2019-04-30 · 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.
Welding Standards
6. NS-65-30 Welding Specification
The following welding recommendations are for the field
installation of a SAF two spring end cap and axle connection and
should be performed by a qualified welder.
1. The axle tube should be clamped securely in the
proper position.
2. The axle tube and pad assembly MUST be 70° F minimum
and free from dirt, scale and grease.
3. The electrode or wire selected MUST conform to one of
the following specifications:
a. Electrode AWS E-7018 (Oven-Dried)
5/32"Dia. 120-190 Amps D.C. + 135-225 Amps A.C.
3/16"Dia. 170-280 Amps D.C. + 200-300 Amps A.C.
b. Wire AWS E-70S-3 AWS E-70T-1
Gas C-25 CO2
Volts 19-20 21-23
Amps 180-200 200-220
Wire Diameter .045" .062" Flux Cored
Figure 5
1ST PASS 2ND PASS 3RD PASS
.19"
.19".38"
1.5"
.75"
1.5"
START
START
1ST PASS
2ND PASS
3RD PASS
1ST PASS
2ND PASS
3RD PASS
4. Apply welds in the sizes and sequence illustrated in Figure 5.
Fill the crater at the end of the weld between passes.
NOTE: Each weld pass is to be completed in two (2) segments.
2.75"

8XL-MS196 Rev E · 2019-04-30 · 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.
TS Series Mechanical Suspension Exploded View
C
L
C
C
L
14
1
1
21
26
22
21
7
17
13
18
4
5
3
15
9
19
23
20
17
14
2
17
14
10
12
11
9
15
3
5
4
16 16
14
17
20
23
24
23
23
25
8
6
“C“DIM
19
18
17
13
14
TS TANDEM SUSPENSION

9
XL-MS196 Rev E · 2019-04-30 · 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.
TS Series Mechanical Suspension Parts List
TS Series Parts List
ITEM DESCRIPTION QTY.
1Spring Assembly 2
2Trunnion Tube 1
3Trunnion Rubber Cap Casting 2
4Trunnion Spring Seat Casting 2
5Trunnion Rubber Bushing 2
6
Trunnion Clamp Casting 2-1/2" “C” DIM Model -1
2
Trunnion Clamp Casting 4-1/2" “C” DIM Model -2
Trunnion Clamp Casting 6-1/2" “C” DIM Model -3
Trunnion Clamp Casting 8-1/2" “C” DIM Model -4
7Spring Saddle Casting 2
8U-Bolt 4
9Locknut 8
10 Cap Screw 4
11 Locknut 4
12 Washer 4
13 Cap Screw 16
14 Locknut 40
15 Washer 8
16 U-Bolt 8
17 Washer Heat Treated 56
18 Spring End Cap 4
19 Spring End Rubber Pad 4
20 Spring End Pad, 5"Round Axle 4
21 Frame Bracket 2
22 Frame Support Angle (Optional Specify) 2
23 Spacer 16
24 Axle Seat 4
25 End Pad 4
26 Cap Screw 8

10 XL-MS196 Rev E · 2019-04-30 · 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.
USR Series Mechanical Suspension Exploded View
USR TANDEM SUSPENSION
11
12
16
17
21
18
20
19
1
3
1
5
14
5
3
4
2
6
11
12
4
7
8
9
10
13 “C“DIM
15

11
XL-MS196 Rev E · 2019-04-30 · 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.
USR Series Mechanical Suspension Parts List
USR Series Parts List
ITEM DESCRIPTION QTY.
1Spring Assembly 2
2Trunnion Tube 1
3Trunnion Rubber Cap 2
4Trunnion Spring Seat 2
5Trunnion Rubber Bushing 2
6
Trunnion Clamp Casting 2-1/2" “C” Dimension
2
Trunnion Clamp Casting 4-1/2" “C” Dimension
Trunnion Clamp Casting 6-1/2" “C” Dimension
Trunnion Clamp Casting 8-1/2" “C” Dimension
7Spring Saddle Casting 2
8U-Bolt 4
9Locknut 8
10 Cap Screw 4
11 Locknut 12
12 Washer 12
13 Cap Screw 8
14 Washer 8
15 U-Bolt 8
16 Spring End Cap 4
17 Spring Rubber End Pad 4
18 Spring End Pad 4
19 Locknut 16
20 Washer 16
21 Spacer 16

12 XL-MS196 Rev E · 2019-04-30 · 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
Figure 6
Figure 7
SRK-23-Axle 481 00 020* (Figure 6)
ITEM DESCRIPTION QTY.
1U-Bolt, 5/8"-11 4
2Spring End Rubber Pad 2
3Hex Head Bolt, 5/8"-11 8
4Locknut, 5/8"-11 16
5Washer, 5/8" 32
SRK-25-Axle 481 00 042* (Figure 7)
ITEM DESCRIPTION QTY.
1U-Bolt, 5/8"-11 4
2Spring End Pad Casting 2
3Spring Head Rubber Pad 2
4Cap Screw, 5/8"-11 8
5Locknut, 5/8"-11 16
6Washer, 5/8" 12
NOTE: One (1) SRK required per axle.
* Used on all TS models, 5" round axles.
NOTE: One (1) SRK required per axle.
* Used on all TS models, 5" round axles.
1
4
2
3
6
6
1
5
5
3
2
5
4

13
XL-MS196 Rev E · 2019-04-30 · 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
Figure 8
Figure 9
SRK-52-1 Trunnion 481 00 147* (Figure 8)
ITEM DESCRIPTION QTY.
1Rubber Trunnion Bushing 2
2Trunnion Fiber Bearing 2
3Thrust Washer 4
SRK-136 Trunnion 481 00 190* (Figure 9)
ITEM DESCRIPTION QTY.
1U-Bolt, 1-1/8" - 7 4
2Rubber Trunnion Bushing 2
3Locknut, 1-1/8" - 7 8
4Washer, 1-1/8" 8
NOTE: One (1) SRK required per axle.
* Used on all TS and USR models.
NOTE: One (1) SRK required per axle.
* Used on all TS and USR models.
1
1
2
4
3
2
3

14 XL-MS196 Rev E · 2019-04-30 · 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
7. Trunnion Bushing Replacement
and Installation
IMPORTANT: It is recommended that the trailer be unloaded
before beginning service procedures.
Failure to properly secure vehicle prior
to commencing work could create a roll
and/or crush hazard which, if not avoided,
could result in death or serious injury.
1. Support the vehicle frame with the adequate jack stands.
Set jack stand height at approximately 2" (51mm) above
the suspension’s specified ride height.
Always refer to the trailer manufacturer’s
approved method of raising the trailer.
If the jack stands are used, they MUST
be of sufficient strength and positioned
according to OEM recommendations.
Failure to use approved jack pad locations
could cause the trailer to fall, resulting in
death, serious injury, and/or component
damage. NEVER use the axle or suspension
components to raise the trailer.
Sufficiently support the suspension prior
to removing the 1-1/8" U-bolts. Failure to
properly support the suspension prior to
trunnion disassembly could result in death
or serious injury.
2. Remove the nuts, U-bolts, trunnion cap clamp, spring
seat, and spring saddle from the trunnion connection
(Figure 10).
3. Remove the trunnion bushing. Inspect the wear washers
for excessive wear prior to re-assembling the new trunnion
bushing. If excessive wear exists, replace the wear washers,
and install the new trunnion bushing.
4. Re-assemble the trunnion connection making sure the
trunnion bushing is centered in the trunnion cap and the
spring saddle before tightening the connection. Torque
to specified torque (Table 1, page 21).
5. Remove the jack stands.
Figure 10
1-1/8"-7 U-BOLT
1-1/8"-7 U-BOLT
TRUNNION SPRING
SEAT CASTING
TRUNNION SPRING
RUBBER BUSHING
1-1/8" WASHER
1-1/8"-7 NUT
TS-4440
TS-5500, TS-5600
SPRING SADDLE
SPRING SADDLE

15
XL-MS196 Rev E · 2019-04-30 · 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
8. Trunnion Clamp Replacement
and Installation
IMPORTANT: It is recommended that the trailer be unloaded
before beginning service procedures.
Failure to properly secure vehicle prior
to commencing work could create a roll
and/or crush hazard which, if not avoided,
could result in death or serious injury.
1. Support the vehicle frame with the adequate jack stands.
Set the jack stand height at approximately 2" (51mm)
above the suspension’s specified ride height.
Always refer to the trailer manufacturer’s
approved method of raising the trailer.
If jack stands are used, they MUST be of
sufficient strength and positioned according
to OEM recommendations. Failure to use
approved jack pad locations could cause
the trailer to fall, resulting in death, serious
injury and/or component damage to the
trailer. NEVER use the axle or suspension
components to raise the trailer.
Sufficiently support the suspension prior
to removing the 1-1/8" U-bolts. Failure to
properly support the suspension prior to
trunnion disassembly could result in death
or serious injury.
2. Remove the nuts, U-bolts, trunnion clamp, and spring
saddle from the trunnion connection (Figure 11).
3. Remove trunnion bushing and wear washers. Inspect the
wear washers for excessive wear prior to re-assembling
the new trunnion bushing. If excessive wear exists (after
the trunnion clamp has been replaced), replace the wear
washers and new trunnion bushing.
4. Remove the trunnion clamp attaching bolts. Remove the
trunnion clamp tube from the trunnion tube. Inspect the
frame brackets for any cracks; clean for flush mounting
of the new trunnion clamp to the frame brackets.
5. Assemble the new trunnion clamp to the trunnion
tube making sure it is in the same location as the one
removed. If both clamps were replaced, pre-assemble
the trunnion clamps to the trunnion tube in the same
location as the old trunnion clamps (approximately
10-1/8" from the end of the trunnion tube). Install the
5/8" fasteners to help locate the trunnion tube assembly
on the frame bracket (Figure 12).
Figure 11
Figure 12
1-1/8"-7 U-BOLT
1-1/8"-7 U-BOLT
TRUNNION SPRING
SEAT CASTING
TRUNNION SPRING
RUBBER BUSHING
1-1/8" WASHER
1-1/8"-7 NUT
5/8"-11 x2"
CAPSCREW
SPRING SADDLE
SPRING SADDLE
TS-4440
TS-5500,TS-5600
FRAME
BRACKET
TRUNNION
CLAMP
CASTING
1-1/8"
WASHER
1-1/8"-7 NUT 3/4"-10 x4-1/2"CAPSCREW
5/8"-11
LOCKNUT
WELD TRUNNION CLAMP
CASTING TO FRAME BRACKET
ONLY AFTER ALIGNMENT
FRAME
SUPPORT ANGLE

16 XL-MS196 Rev E · 2019-04-30 · 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
6. Re-assemble the trunnion connection. Ensure that the
trunnion bushing is centered in the trunnion cap and
spring saddle before tightening the connection. Torque
to specified torque (Table 1, page 21).
7. Realign the axles to kingpin. Weld the trunnion clamp in
place following the directions provided on drawing
140 00 057. Refer to Figures 11, 12 and 13 for
recommended trunnion clamp and frame attachment.
8. Remove the jack stands.
Figure 13
Welding Gussets to Crossmembers - Top View/Side View
NOTE: Weld where indicated thus, “xxxx” on all axle
connection and frame attachment instructions.
NOTE: Refer to Axle Alignment Procedure Section 5, page
18, before welding.
TOP VIEW
SIDE VIEW
OUTSIDE WELD
CROSSMEMBERS
(CUSTOMER SUPPLIED)
1/2" NO WELD
(TYPICAL).
GUSSET - (4) PLACE
THICKNESS EQUAL
TO I-BEAM FLANGE
(CUSTOMER SUPPLIED)
GUSSET WIDTH
VARIES WITH FRAME
I-BEAM FLANGE AND
FRAME WIDTH
TRAILER
C
L
WELD FRAME BRACKET
TO TRUNNION CLAMP
BRACKET SECURELY
ALONG BEVELED JOINT
AFTER ALIGNMENT TO
KINGPIN. (WELD FULL
LENGTH ON INSIDE AND
ENDS OF BRACKET AND
FOR DISTANCE SHOWN
ON OUTSIDE).
TANDEM
C
L
3"
1"
12"
12" 12"
2"
2"
XXXX
2"
8"
3/4"
10" 10"
1/2" NO WELD
(TYPICAL)
TRAILER FRAME
CHANNEL BRACE - 2 PL
1/4"x2"x8"x L H.R.S.
(CUSTOMER SUPPLIED)
H.R.S. = HOT ROLLED STEEL NOTE: Before welding refer to
Axle Alignment procedure
on page 18.

17
XL-MS196 Rev E · 2019-04-30 · 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
Figure 14
Frame and Axle Attachment
NOTE: These frame attachment instructions and dimensions
are for optional SAF standard 9-1/4" high frame
brackets. The use of customer-designed frame
brackets may require some modification in the size
and location of the gussets, crossmembers, and
channel braces.
NOTE: DO NOT weld anywhere on the axle except
where specified.
38" FRAME WIDTH SHOWN VARIABLE
FROM 30" TO 40"
38" SPRING CENTERS – STANDARD VARIABLE TO
CUSTOMER SPECIFICATION
L
1/2" - L
1/2"
6"
6"
3/16"+ 1/8"
WELD FRAME BRACKET
TO TRUNNION CLAMP
BRACKET SECURELY
ALONG BEVELED JOINT
AFTER ALIGNMENT TO
KINGPIN. (WELD FULL
LENGTH ON INSIDE AND
ENDS OF BRACKET AND
FOR DISTANCE SHOWN
ON OUTSIDE).
SPRING SPRING
GUSSET
DO NOT WELD
ACROSS FLANGE
TRUNNION
CLAMP BRACKET
5/8" DIAMETER BOLTS, NUTS AND
WASHERS – EIGHT (8) EACH
1/2"NO
WELD
(TYPICAL)
FRAME
BRACKET
CTRAILER
L
CTRAILER
L
CTRUNNION
L
C
LC L
“L“ = LENGTH TO SUITE
SPRING CENTERS
“L“ = SPRING CENTERS
MINUS 12"
EXAMPLE:
38"SPRING CENTERS
L = 38"-12" = 26"

18 XL-MS196 Rev E · 2019-04-30 · 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
9. Axle Alignment Procedures
1. When aligning axles, the suspension should be in a
natural, relaxed state, free of any binds. Before taking
measurements, and to achieve this relaxed condition,
ensure that the vehicle is unloaded. Then roll it back
and forth on a level floor. Avoid brake application.
The vehicle MUST be level from side to side as well as
from front to rear. Measurements should be taken from
the kingpin to the axle ends.
1. To properly align the suspension attached to the trailer,
ensure that there are no binds in the suspension.
2. Alignment can be achieved with an optical device
designed especially for this purpose or manually by the
following manner: Measure the distance from the kingpin
to the center line of the spindles on the front axles. It
is recommended that the spindle extensions be utilized.
Dimensions A and B MUST be equal within 1/8"(3mm).
Dimension E is equal to the distance between the trailer
center line and the axle center line (Figure 15).
3. Locate the rear axle to the forward axle and recheck the
king-pin alignment. Variance in “A” and “B” dimensions
would indicate axle alignment discrepancies.
4. Weld axles in accordance with NS-65-28 for TS Series and
NS-65-30 for the USR Series suspension.
10. Axle Alignment Tips
1. Always measure to the axle ends for accurate alignment.
2. Avoid measuring to the rims, suspension brackets,
brake drums and the like. This will only result in
improper alignment.
3. If difficulty is encountered in obtaining true alignment,
check and repair or replace worn or bent suspension parts.
Figure 15
A = B ± 1/8" (3 mm)
C = D ± 1/16" (1.6 mm)
E = 1/16" (1.6 mm)
A
C
B
D
E

19
XL-MS196 Rev E · 2019-04-30 · 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
11. Spring End Pad Replacement
IMPORTANT: It is recommended that the trailer be
unloaded before beginning service
procedures.
Failure to properly secure vehicle prior
to commencing work could create a roll
and/or crush hazard which, if not avoided,
could result in death or serious injury.
1. Support the vehicle frame with the adequate jack stands.
Set the jack stand height at approximately 2" (51mm)
above the suspension’s specified ride height.
Always refer to the trailer manufacturer’s
approved method of raising the trailer.
If jack stands are used, they MUST be of
sufficient strength and positioned according
to OEM recommendations. Failure to use
approved jack pad locations could cause
the trailer to fall, resulting in damage to the
trailer and/or death or serious injury. Never
use the axle or suspension components to
raise the trailer.
2. Remove the fasteners that attach the axle to the spring end
cap; remove the spring end rubber pad (Figure 16).
3. Inspect the spring end pad locator pin for excessive wear.
If excessive wear exists, replace the spring end pad. Grind
the spring end pad flat and clamp the new pad in place
making sure all holes line up. Weld the new pad in place.
Refer to SRK-25 for assembly.
NOTE: SRK-25 contains enough parts to service one (1) axle.
4. Check the the spring end pad for cracks in the weld prior
to reassembling the axle connection (Figure 17). Repair
if necessary. If the axle spring end pad/axle seat is being
replaced refer to NS-65-28 or NS-65-30 page 6 and 7 for
welding instructions. Align axle prior to finish weld.
5. Re-assemble the axle connection. Torque to specifications
listed in Table 1, page 21.
6. Remove the jack stands.
Figure 16
Figure 17
5/8" -11 x2-1/2"
CAPSCREW
5/8" -11 x7-1/2" BOLT
SPRING END CAP
ORIGINAL SPRING
END CAP
U-BOLT
SPACER
SPRING END CAP
CASTING REPLACEMENT
5/8" -11 LOCKNUT
5/8" WASHER
SPRING END CAP
SPRING END
RUBBER PAD
SPACER
SPRING END PAD CASTING
REPLACEMENT
SPRING END
PAD CASTING
5/8" -11 LOCKNUT
5/8" WASHER
SECURELY WELD (XXXX) SPRING END PAD
CASTINGS TOGETHER AT BEVELS PROVIDED AT
BOTH ENDS OF CASTINGS. USE WELDING ROD
AWS SPEC. E-7018 OR EQUIVALENT.

20 XL-MS196 Rev E · 2019-04-30 · 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
12. Pre-Operation Checklist
Prior to placing the unit in service, check the following items:
Failure to properly secure vehicle prior
to commencing work could create a roll
and/or crush hazard which, if not avoided,
could result in death or serious injury.
1. Check the trunnion clamp welding to the frame bracket
for proper welding (Figure 13, page 16).
2. Ensure that the frame bracket bracing is in place and
properly welded (Figure 4, page 17).
3. Check the axle connection welding (Figure 18).
Welding MUST be in accordance with NS-65-28 for
TS models or NS-65-30 for USR models. For all models
welding MUST be in accordance with NS-65-07.
4. Ensure that all nuts have been torqued to specifications.
in Table 1, Page 21.
Figure 18
Figure 19
Figure 20
SPRING
SPRING
NO WELD
ON U-BOLT
AXLE SPACING (AXLE
MUST BE EQUIDISTANT
AT BOTH ENDS)
5" DIAMETER AXLES
5-3/4" DIAMETER AXLES
5" DIAMETER
AXLE
AXLE CAMBER LINE
CLEARANCE FOR
AXLE ALIGNMENT
WELD PER HOLLAND®USA
ENGINEERING STANDARD
NS-65-28/NS-65-30 AFTER
AXLE ALIGNMENT
5" DIAMETER
AXLE U-BOLTS
(USE INNER HOLES)
5" DIAMETER
AXLE U-BOLTS
(USE INNER HOLES)
5-3/4" DIAMETER AXLE
EQUAL DISTANT AT BOTH ENDS
SPRING END CAP
SPACER
SPRING END PAD BRAKE FLANGE
3/4"
AXLE CAMBER LINE
U-BOLT