BILL OF MATERIALS:
TEM | PART NUMBER DESCRIPTION ay.
1_[ C=28610-1C | FRONT BRACKET ASSEMBLY, LH. 1
40.8 2 | c=28610-20 | FRONT BRACKET ASSEMBLY, RH. 1
. 3 | c-28614 REAR BRACKET ASSEMBLY 2
TORQUE SPECIFICATIONS |_-(4.692)-} A 4 | c=28617=1 FT BRACKET, LH. 1
TORQUE 5 | c-28617-2 LIFT BRACKET, RH. 1
JESCRIPTION Sve TAD 6 | c-23114 'AIR_SPRING 2
[AR SPRING NUT, AR INLET STUD 16 45-55 7_| Aq24614 LUFT ASSEMBLY BOLT KIT 1
[AR SPRING MOUNTING BOLTS 3/816 25-35 8 |*A-26828 IDENTIFICATION TAG t
IREAR_BRACKET_ASSEMBLY_BOLTS 12-13 55-75. 9 [*0WG D-28630 [UBL-004 LIFT KIT DRAWING 1
[BRAKE CHAMBER MOUNTING NUTS 5/8=11 T00=110 10 }*A-21066 RIVET, DRVE 1
© (at Frsioor [UBL_HARDWARE_KIT INFORMATION 1
t NOTES * NOT SHOWN,
ARNE HARD REAR OF 1. 14" ROE HEIGHT SHON, INSTALLATION
‘SUSPENSION > NCLUDES "35 LE FoR imioowe WELDS.
(RIDE HEIGHT) 3. WELDING PARAMETERS: °
SETTINGS FOR .045 DIAMETER WIRE
STANDARD WIRE — AWS ER-70S~6; .045 DIAMETER
OPTIONAL WIRE - AWS ER-70S~3; .045 DIAMETER
GAS — 86 ARGON 14 CO2 (30-35 CFH)
VOLTS - 26 TO 30
WIRE FEED SPEED ~ 380 10 420 IPM
CURRENT - 275 0 325 AMPS
ELECTRODE. EXTENSION: 3/4 TO 1 INCH
SETTINGS FOR .035 DIAMETER WIRE
STANDARD WIRE — ERBOS-D2; .035 DIAMETER
GAS — 85 ARGON 15 CO2 (35 TO 45 CH)
VOLTS - 25 0 27.5
WIRE FEED SPEED ~ 390 10 425 IPM
CURRENT — 160 TO 180 AMPS
ELECTRODE EXTENSION: 3/4 TO 1 INCH
FILL ALL CRATERS AT END OF WELDS.
4, BRAKE CHAMBERS, IF ALREADY MOUNTED,
MUST, BE REMOVED BEFORE INSTALLING
5. IF EXISTING LATERAL BRACING AT FRONT OF
50.00 MIN SPACING BETWEEN AXLES WHEN ADDITIONAL (E BRACKETS INTERFERES. WITH INSTALLATION
AAL SUSPENSION IS FORWARD OF LIFTABLE SUSPENSION SECTION A-A OF THE LIFT KIT FRONT BRACKETS, BRACING MUST
43.00 MIN SPACING BETWEEN AXLES WHEN ADDITIONAL PECHON ATA BE MODIFIED OR REMOVED AND RELOCATED.
AANT OR AAT SUSPENSION IS FORWARD OF LIFTABLE SUSPENSION SOME COMPONENTS NOT CONTACT HENDRICKSON TRAILER SUSPENSION
SHOWN FOR CLARITY. SYSTEMS AT 866-RIDEAR (866-743-3247).
6. IF POSSIBLE, IT 1S HIGHLY RECOMMENDED THAT
THE LIFT BRACKET WELDING SHOWN ON PAGE 2 BE
PERFORMED WITH THE SUSPENSION INVERTED,
TO ALLOW THE WELDS TO BE APPLIED IN THE
DOWNHAND POSITION.
7. UBL=004 INTENDED FOR USE WITH CARBON STEEL
FRAME BRACKETS ONLY. USE UBL-401 OR UBL—402
FOR STAINLESS STEEL FRAME BRACKETS.
FRONT BRACKET INSTALLATION STEPS 7 & 8 AvERUP NUL WELDS. SEE DETAL C.
QVERLAP ALL WELDS. SEE DETAIL C.
SCALE 1:4 ELDS TIE INTO EXISTING BRACKET WELDS
ASSEMBLY PROCEDURE
SEE_PAGE 2 FOR ASSEMBLY STEPS 1 THROUGH 5. LIFT BRACKET
MUST BE INSTALLED PRIOR TO FRONT BRACKET ASSEMBLY TO
MAXIMIZE WELDING TORCH ACCESS TO LIFT BRACKET.
SEE DETAIL C
UBL, CANNOT BE INSTALLED WITH SUSPENSION ASSEMBLED TO. FRAME
BRACKET (UNITZIED), AS EXCESSIVE WELDING HEAT WILL DAMAGE. TH EXISTING BRACKET WELD
PIVOT BUSHING. SUSPENSION MUST BE DISASSEMBLED FROM FRAME
BRACKETS BEFORE WELDING.
6. PREPARING THE FRAME BRACKET SURFACES.
REMOVE PAINT FROM ALL AREAS OF FRAME BRACKET TO BE WELDED
7. POSITIONING THE FRONT BRACKET ASSEMBLY.
LOCATE THE FRONT BRACKET ASSEMBLY AGANST THE FRAME
9, BRACKET, AS, SHOMN, TACK INTO PLAGE. EWC
"PLACE WELDS IN THE INDICATED SEQUENCE, STARTING WITH OVERLAPPING WELDS
THE HORIZONTAL FRONT WELD, AND ENDING WITH THE SLOT SCAE SCALE 1:2
WELD ON THE INBOARD SIDE OF THE HANGER.
9 ATTN THe WOLNTING HOLES OF THE REAR BRACKET ASSEMBLY
WITH THE LIFT BRACKET HOLES AND INSERT THE’ TWO This Print remains the property of
UR ie Ao BOLTS, AND NUTS. TICLE TO THE NALUE CALLED Hendrickson. All information contained
SPRING WITH THE AIR INLET FACING TO THE FRONT OR REAR, thereon is confidential. It is loaned,
Papa G ON AIR LINE ORIENTATION PREFERENCE. TIGHTEN subject to return on demand and on
16 FLANGE NUT AND 3/8-16 x .88 BOLTS TO SPECIFIED express condition that it is not to be PART NUMBER | REV.
copied or used directly or indirectly uat-004 [7 PRODUCTION
for any purpose other than the pur— ap ro BESS AP Bes wee {Z| ee oa ee aes | 08-wor-06) “2501.00 Tors
pose for which it has been loaned to| HEED RTIEKSON Sih TEs ellaleenl cn = UBL—004 —
you. TRAILER, SUSPENSION SYSTEMS ae sawee | + | roe [asl eae Van ano | mee LIFT KIT FOR AANT 23K D—28630

LIFT BRACKET INSTALLATION

STEPS 1 & 2

[-—APPROX 4° —~j

This Print remains the property of
Hendrickson. All information contained
thereon is confidential. It is loaned,
subject to return on demand and on
express condition that it is not to be
copied or used directly or indirectly
for any purpose other than the pur—
pose for which it has been loaned to
you.

ASSEMBLY PROCEDURE

UBL CANNOT BE INSTALLED WITH SUSPENSION ASSEMBLED TO FRAME
BRACKET (UNITIZED), AS EXCESSIVE WELDING HEAT WILL DAMAGE THE
PIVOT BUSHING. SUSPENSION MUST BE DISASSEMBLED FROM FRAME
BRACKETS BEFORE WELDING.

1. PREPARING THE BEAM SURFACE.
REMOVE PAINT FROM UNDERSIDE OF TRAIUNG ARM BEAM AS
INDICATED BY THE SHADED AREA.

MARKING THE CENTERLINE.

MARK OR SCRIBE A LINE THROUGH THE CENTER OF THE SMALL OVAL
SLOT ON THE UNDERSIDE OF THE TRAILING ARM BEAM, AS SHOWN.
THE UNE SHOULD BE AT LEAST 5 INCHES IN LENGTH ‘AND PARALLEL
TO THE OUTBOARD SIDE OF THE BEAM.

POSITIONING THE LIFT BRACKET.

LOCATE LIFT BRACKET (ITEM 4 - LH., MEM 5 — RH.) TO UNDERSIDE
OF BEAM, ALIGNING TAB AT REAR OF LIFT BRACKET TO MARKED
LINE. MAKE SURE BRACKET SLOT IS PARALLEL TO. MARKED

LINE, AND FRONT OF THE BRACKET SLOT LINES UP WITH THE FRONT
OF THE BEAM SLOT, TACK INTO PLACE.

FILLING THE SMALL SLOT.

LL SLOT.
PRIOR TO MAKING THE 5—PASS WELD, COMPLETELY FILL THE SMALL
SLOT ON THE UNDERSIDE OF THE BEAM.

COMPLETE ATTACHMENT OF LIFT BRACKET BY WELDING THE LARGE
OVAL SLOT IN THE BRACKET TO THE BEAM. THIS IS A 3~PASS WELD.
ALL THREE PASSES MUST BE UNINTERUPTED AROUND THE FRONT
OF THE SLOT, AS INDICATED IN "STEP 5” ILLUSTRATION. NO WELDING
IS REQUIRED ‘OUTSIDE OF THE SLOT AREA.

SEE PAGE 1 FOR FRONT BRACKET ASSEMBLY WELDING INSTRUCTIONS.

s

“

RK CENTERLINE ABOUT 5 INCHES IN. LENGTH
THROUGH CENTER OF BEAM SLOT, AS SHOWN.

POSITION LIFT BRACKET WITH SLOT
AND ALIGNMENT TAB IN. LINE WITH
MARKED CENTERLINE. ENSURE THAT
FT BRACKET IS PARALLEL WITH BEAMS.

IGNMENT TAB

DETAIL D
SCALE SZ

DO NOT WELD HERE!

DETAIL E
SMALL SLOT WELD
SCALE 1:1

ILL SLOT COMPLETELY

DO NOT WELD HERE!

STEP _5

OTE!
TT IS IMPORTANT TO ENSURE CONTINUOUS
WELD AROUND FRONT OF SLOT.

_

\

FRAME BRACKET, BRAKES, AND ASSOCIATED
COMPONENTS NOT PICTURED FOR CLARITY.

SECTION

P
CO

EE DETAIL OF

‘2ND PASS:
DETAIL OF
TRIPLE—PASS WELD SEQUENCE
‘SCALE 2:1
DETAIL E
P
PRODUCTION
Zeros [ooueno8 7
13S ee UBL—004
TEISER, SUSEENSON SSMS lteter {ow coven | ‘Semon LUFT KIT FOR AANT 23K D-28630