outboard side.
iv. Thread the nut onto the threaded end
of the pivot bolt until snug against the
eccentric alignment collar.
IMPORTANT: The above steps are done in preparation
for alignment. Be sure the alignment
collars pass through the alignment
slots and against the frame bracket
(Figure 4 on page 5). The pivot bolt
will be fully tightened after suspension
alignment as part of L579.
v.

Continue the QUIK-ALIGN style pivot
connection reassembly and alignment as
described in Hendrickson literature number
L579 Alignment Procedure.

4

L427 H

21

Refer to Hendrickson literature number B31 Torque Specifications available
at www.Hendrickson-intl.com/TrailerLit.

Bushing Replacement Procedure 

HT™ SERIES Y-BEAM BUSHING
REPLACEMENT

HT™ Series Y-beam suspensions differ from other
suspension beams because they do not require a frame
bracket. The fork or “Y” of the beam connects directly
to the trailer frame using the bushing tube sleeve
(Figure 45 and Figure 44, item 1).
Removal and installation of the bushing assembly
(Figure 45 and Figure 44, item 2) does not require the
bushing removal tool.

XXXXXX
XXX
XX
XX
XX
XX
X

X
XX
XX
XX
XX
XX
XX

4

2

Bushing assembly

4

4

3

Bushing tube spacers (2 ea)

4

4

4

Welded alignment collars (2 ea)

4

5

Eccentric alignment collar

4

6

Concentric alignment collar

4

7

Hex cap screw (Pivot bolt) and nut

4

8

Delrin® liner

4

WELDED

4

Table 3: Y-beam pivot connection hardware list

XXXXXXXXXX

XXXXXXXXXXXXX
XXX
X
XXX

XX

XXXXXXXXXX

Bushing tube sleeve

DESCRIPTION

Trailer
frame
rail

1

2

1

QUIKALIGN
4

ITEM

3
7
6

5

Figure 44: QUIK-ALIGN® pivot connection hardware

Trailer
frame
rail
1
2

XXXX
XX

XXXXX

3
8

4
7

Figure 45: Welded collar pivot connection hardware

22

L427 H

Bushing Replacement Procedure
Y-BEAM PIVOT CONNECTION DISASSEMBLY

1. Use a jack or other means to support the
suspension beam while removing pivot connection
hardware.

Removal of the pivot connection hardware for both
QUIK-ALIGN alignment systems is similar to suspensions
with frame brackets. For the recommended procedure,
refer to QUIK‑ALIGN on page 5. Reference Figure 44
and Figure 46.
Concentric
alignment
collar

Alignment
slot

2. Cut or grind the Huck fastener from the Huck bolt
(or the nut from the cap screw).
3. Remove and discard the bolt and nut.

NOTE: Alignment collar
must mount
flush against
suspension
beam

IMPORTANT: Removal of Y-beam parent material must
be avoided.
4. Carefully grind or cut the welds securing the
inboard and outboard alignment collars to the
Y-beam for both bushing assemblies.

Eccentric
alignment
collar

5. Discard alignment collars.

Y-BEAM BUSHING ASSEMBLY REMOVAL

The bushing assembly (Figure 45 and Figure 44, item
2) should be held in position by four half-inch welds
(Figure 49) on each end. To remove the bushing
assembly:
1. Using the jack, carefully lower the suspension
beam assembly away from the trailer frame and
bushing tube sleeve to expose the bushings.

Figure 46: Y-beam QUIK-ALIGN alignment collar pivot connection

2. Discard the bushing tube spacers.

However, for welded collar alignment systems, to
separate the Y-beam from the trailer frame, the collars
must be removed as defined in the following procedure.
Reference Figure 45 and Figure 47.

NOTE: If within the warranty time period, The
following is recommended at this time as
defined in Hendrickson literature number L583
Comprehensive Warranty Statement:

NOTE: Alignment collars must mount flush against
bushing inner metal and must be removed
to separate the beam from the trailer frame.
Inner
metal &
Delrin liner
(welded
collar only)

• CONTACTING HENDRICKSON prior to service.
• SEND photos to [email protected]
for evaluation.
3. Grind away the four welds on each end of the
bushing assembly.
NOTE: From a previous bushing replacement, this
weld may be 360°. The weld still needs to be
removed to replace the bushing assembly.

Alignment
slot

Alignment
collar

4. Slide out and remove original bushing assembly.
NOTE: If within warranty, the original bushing
assembly must be returned to Hendrickson for
further warranty consideration.
5. Check the edge of the bushing tube sleeve.
6. Clean as needed prior to installing new bushing
assembly.

Figure 47: Y-beam Welded alignment collar pivot connection

L427 H

23

Bushing Replacement Procedure 
Y-BEAM BUSHING ASSEMBLY INSTALLATION

Y-BEAM PIVOT CONNECTION REASSEMBLY

This procedure is the same for both QUIK-ALIGN and
welded collar bushing assemblies (Figure 48).
®

QUIK-ALIGN

NOTICE

1. Place and hold new bushing tube spacers over
bushing tube sleeves. Refer to Hendrickson
literature number L750 Bushing Tube Spacer
Inspection/Replacement Procedure for details.

Welded Collar

NOTE: Tape can be used to hold spacers in place
during Y-beam installation into trailer frame.

Figure 48: Y-beam bushing assemblies
Bushing
tube
sleeve

2. Lift and position Y-beam subassembly relative
to vehicle frame rail as indicated in Figure 44 or
Figure 45.
3. Reassemble the pivot connection using one of the
following procedures:

XXXXXX

0.5"
(12.7
mm)
evenly
spaced

XXXX XX

XXXXXX

0.25"
(6.4
mm)

XXXXXX

Both
sides,
4 welds
evenly
spaced

Bushing
assembly

CAUTION DO NOT APPLY anti-seize compound or
additional lubricant to pivot connection
hardware. A dry lubricant coating has
been applied to the threads of the pivot
connection bolt and nut. Do not allow
undercoating, paint, surface coatings, or
any other commonly used compounds
to contact the threads of the pivot
connection fasteners. These compounds
can act like a lubricant, reducing the
friction between the threads of the nut
and bolt. This can lead to overtightened
fasteners, unpredictable pivot
connection clamp loads and unreliable
axle alignments. Threads should be
clean, dry and free of contamination, as
supplied by Hendrickson.

Bushing
voids (X2)

Figure 49: Inserting HT Y-beam bushing assembly

1. Insert the new bushing assembly (Figure 48) into
the bushing tube sleeve (Figure 49).
2. Rotate bushing assemblies so bushing voids are
positioned vertically as shown in Figure 49.
3. Center bushing assembly in the bushing tube
sleeve.
4. Tack weld both ends into place.
5. Weld the bushing assembly to the bushing tube
sleeve, (Figure 49), with four half-inch (12.7 mm)
welds. Refer to Hendrickson literature number L64
Welding Procedures for weld parameters.
NOTICE

Failure to follow these procedures and/
or properly torque the pivot bolts at
this time can result in a failed pivot
connection and a loss of warranty
coverage.

CAUTION DO NOT apply undercoating, paint or
other surface coating to the suspension
and frame brackets until after
completing the alignment.

Allow adequate cooling between welds
to prevent excessive heating of the TRIFUNCTIONAL® Bushing!

IMPORTANT: New pivot connection fasteners must be
used for pivot connection reassembly.

24

L427 H

Bushing Replacement Procedure
A. QUIK-ALIGN Style Pivot Connection (Figure 44
on page 22). Reassemble as follows:
i.

4. The HT Y-beam suspension/axle is now ready
for alignment. Complete the pivot connection
assembly according to alignment procedures listed
in Hendrickson literature number L579.

Place the eccentric alignment collar onto
the new shear-type pivot bolt.

5. Restore trailer to normal operating condition when
complete.

ii. Working from the outboard side of the
trailer, insert fastener through Y-beam’s
alignment slots, spacers and bushing
assembly.
iii. Slide the concentric alignment collar over
the threaded end of the pivot bolt on the
inboard side.
iv. Thread the nut onto the threaded end
of the pivot bolt until snug against the
concentric alignment collar.
IMPORTANT: The above steps are done in preparation
for alignment. Be sure the alignment
collars pass through the alignment slots
and against the Y-beam (Figure 47). The
pivot bolt will be fully tightened after
suspension alignment as part of L579.
B. Welded Collar Style Pivot Connection
Welded collars were removed and discarded during
pivot connection disassembly. New collars are
required for this procedure. Refer to Figure 6 on
page 6, Figure 45 on page 22 and Figure 47
on page 23.
i.

Insert provided Delrin® liner (Table 3, item
8) through the alignment slot and bushing
inner metal (Figure 45 and Figure 47).

ii. Place a new alignment collar onto a new
11/8‑inch heavy hex cap screw.
iii. Working from the outboard side of the
trailer, insert fastener, with collar, through
the Y-beam’s alignment slots, spacers
and bushing assembly (toward center of
trailer).
iv. Place new inner alignment collar onto the
threaded end of the cap screw.
v.

Thread the new 11/8‑inch lock nut onto the
cap screw and tighten to 800±25 ft. lbs.
(1085±30 N∙m) of torque 5.

vi. Tack weld the nut to the cap screw threads.

5

Refer to Hendrickson literature number B31 Torque Specifications available
at www.Hendrickson-intl.com/TrailerLit.

L427 H

25

Bushing Replacement Procedure 
NOTES:

26

L427 H

Bushing Replacement Procedure

L427 H

27

Actual product performance may vary depending upon vehicle configuration, operation, service and other factors.

Call Hendrickson at 866.RIDEAIR (743.3247) for additional information.

www.hendrickson-intl.com
L427 Rev H 02-19 ECN 31886

Rev G 10-17 ECN 30561

TRAILER COMMERCIAL VEHICLE SYSTEMS
2070 Industrial Place SE
Canton, OH 44707-2641 USA
866.RIDEAIR (743.3247)
330.489.0045 • Fax 800.696.4416
Rev F 04-16 ECN 24823

Rev E 02-08 ECN 16334

Rev D 06-03

Hendrickson Canada
250 Chrysler Drive, Unit #3
Brampton, ON Canada L6S 6B6
800.668.5360
905.789.1030 • Fax 905.789.1033

Hendrickson Mexicana
Circuito El Marqués Sur #29
Parque Industrial El Marqués
Pob. El Colorado, Municipio El Marqués,
Querétaro, México C.P. 76246
+52 (442) 296.3600 • Fax +52 (442) 296.3601

© 1995 - 2019 Hendrickson USA, L.L.C. All Rights Reserved. All trademarks shown are owned by Hendrickson USA, L.L.C., or one of its affiliates, in one or more countries.
Information contained in this literature was accurate at the time of publication. Product changes may have been made after the copyright date that are not reflected.

Printed in United States of America