SERVICE BULLETIN

TECHNICAL SERVICE BULLETIN
Bulletin No.:

TSB-040

Date:

November 14, 2019

Subject:

Front Chassis Container Pin

Models:

Quantum VP Lite 40’ and 45’ Trailers

Background
Quantum Virtual Pipeline (VP) trailers are built using
high cube containers that utilize a standard ISO
latching methodology in the front and rear to secure the
container to the chassis.
This high cube container configuration is only available
with a horizontal sliding pin for securing the front of the
container to the chassis.
This sliding pin configuration can only provide support
in two axis.
Condition
In the event of a collision or roll over, it is possible for
the chassis container pin to become damaged or
displaced and no longer work to retain the container to
the chassis.
Due to a reduced engagement depth of the chassis
pins that use the chamfered outer hole of the container,
chassis that use this chamfered outer hole may be
more susceptible to separation from the container in the event of a roll over.
Cause
There are two holes in each of the front corners of the container where the chassis pins may engage. The
inner hole will intersect perpendicular to the chassis pin, the outer hole will intersect at an angle to the
chassis pin.
Certain manufacturer’s chassis are designed to utilize the chamfered outer hole on the container.
On chassis’ using the chamfered outer hole, there is a reduced depth of chassis pin engagement in the
container corner block when compared to the engagement of the inner pin
Correction
A new fastening method has been developed to improve the connection between the chassis and the
container. In the event of a roll over collision this new fastening method should be more durable than the
original chassis pin. The new fastening method will provide support in all three axis.
Only Quantum VP Lite trailers using Chassis King and Cheetah chassis use the outer container corner
block hole. Quantum will be performing a goodwill update on all trailers that were built with chassis’ that
utilized the chamfered outer hole in the container corner block.
For customers that choose to update the fastening method on the trailers that utilize the inner hole in the
container corner block, a kit and instructions will be provided free of charge from Quantum.

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Labor Time
Estimated labor time for Chassis King and similar chassis:
Estimated labor time for Cheetah chassis:
VP Lite Trailers:

Labor OP: G0007

0.4 – 0.6 hours.
1.5 – 2.5 hours.

Time: Excess time Approval Required

Labor is only being reimbursed for units equipped with a Chassis King or Cheetah Chassis.
Parts Information
Description
KIT- CHASSIS PIN, 45’
KIT- CHASSIS PIN, CHEETAH
KIT- CHASSIS PIN, 40’

Part Number
120344
120373
120363

Fits
Chassis King, Pratt, Kwik
Cheetah
Pratt, Kwik

Qty
A/R
A/R
A/R

Note: 120363 retrofit kit can be used for 45’ Pratt and Kwik chassis if needed

Parts for this modification will begin to be available starting in late November on a priority basis. Contact
Quantum Warranty Department at 949.399.4546 or at [email protected] for kit availability

Application
This bulletin may be applied to any Quantum VP Lite 40’ or 45’ series trailer.

Contact Information:
E-Mail: [email protected]
Phone: U.S. 800.816.8691
Outside U.S. 949.930.3411
Fax:
949.930.3401

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40’ and 45’ Procedure
The following procedure can be used to modify the front latch pin used on all 40’ and 45’ VP Lite trailers
using Chassis King, Pratt or Kwik chassis. Note that the kit for the Chassis King chassis is unique and
requires the tapered nut.
Important: There is a different procedure in this bulletin for use on 40’ chassis / containers.
1. Place a stand under the front of the chassis header to hold it firmly in place.
2. Remove and discard the original front chassis
safety latch and bolt.

3. Remove and discard the bolt and handle for
the chassis pin

4. Remove and discard the existing chassis pin.

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5. Place the bolt through the bushing that the
original chassis pin was removed from. Insert
the bolt until it is flush with the inside of the
container corner pocket.
6. Apply anti seize to the threads inside the nut.
Insert the nut through the bottom opening of
the container corner pocket with the taper
side facing forward for Chassis King chassis
and rearward for Pratt and Kwik chassis, then
rotate 90 degrees.
Note: Picture showing inner pocket installation with taper facing rearward.
7. Hold the nut against the forward inside
surface of the container corner block and
thread the bolt into the nut.

8. While holding the nut against the inside of the
container corner block, thread the bolt in until
the cross drilled hole in the bolt is between ½”
– ¾” (13mm -19 mm) from the original latch
retainer hole.

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9. Press the bolt in until the cross drill hole in the
bolt aligns with the hole in the bracket and
insert the cross bolt.

10. Verify that the nut is not in hard contact with
the inside surface of the container corner
block, if properly adjusted it should float
inside the compartment and not touch any
side. Adjust as needed.

11. Install a locking nut on the cross bolt and
tighten until there is zero clearance between
the bolt and the bracket.

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Cheetah Procedure
The following procedure is only applicable to the Quantum VP trailers using a Cheetah Chassis with the
factory pin engagement in the outer container corner pocket.
Unlike the previous procedure, this procedure will leave the existing pin in place and install an additional
feature to secure the container to the chassis.
1. Place a stand under the front of the chassis header to hold it firmly in place.
2. The handle for the original locking pin will
interfere with the completed installation of the
new fastening method.
Cut off the handle approximately ½” past the
latch in the area shown.

IMPORTANT: Verify the safety latch will not
move past the end of the cut handle. Tighten
the pivot bolt on the safety latch plate as
needed to restrict the movement.

3. Locate the hole to be drilled by measuring
3.25” from the centerline of the existing
chassis pin and on the same horizontal
centerline.
Note: The chassis pin is 1.5” in diameter, you
can measure 2.5” from the outer diameter of
the existing pin, make sure you are not
measuring from the flats on the existing pin.
4. Drill a ¼” pilot hole and verify the hole
location is centered in the container corner
pocket.

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5. Drill a 1.75” (44 mm) hole through the header
panel.
6. Remove any paint around the hole and
prepare the surface for welding.
IMPORTANT: Verify the hole for the cross
bolt in the sleeve is positioned so the bolt
can be inserted.

7. Center the bolt sleeve over the previously
drilled hole and verify it sits flush against the
header panel. Grind as needed to provide
clearance to any other welds or components.
Place the sleeve in position as shown and
tack weld in place. Verify positioning and fully
weld the sleeve in place with a 3/16” fillet
weld.
Apply a zinc rich primer and paint all areas
affected by the cutting and welding process.
Prime and paint the sleeve inside and out.
It may be necessary to retract the factory
container pins and drop the front of the chassis
to allow for proper painting on the inside of the
header panel.
8. Apply seam sealer to the joint between the
sleeve and the header panel on the inner
surface of the sleeve.
Verify the sealer does not protrude and
interfere with installation of the bolt.

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9. Place the bolt through the sleeve that was just
installed. Insert the bolt until it is flush with the
inside of the container corner pocket.
10. Retract factory pins for clearance as needed
to insert the nut.
11. Apply anti seize to the threads inside the nut.
Insert the nut through the bottom opening of
the container corner pocket with the taper
side (if present) facing rearward and rotate 90
degrees.
12. Hold the nut against the forward inside
surface of the container corner block and
thread the bolt into the nut.

13. While holding the nut against the inside of the
container corner block, thread the bolt in until
the cross drilled hole in the bolt is between ½”
– ¾” (13mm -19 mm) from the retainer hole in
the sleeve.

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14. Press the bolt in until the cross drill hole in the
bolt aligns with the hole in the bracket and
insert the cross bolt.

15. Verify that the nut is not in hard contact with
the inside surface of the container corner
block, if properly adjusted it should float
inside the compartment and not touch any
side. Adjust as needed.

16. Install a locking nut on the cross bolt and
tighten until there is zero clearance between
the nut and the sleeve.

17. Verify the original chassis pins are engaged
and fully seated.
18. Install a seal on each chassis pin safety latch.

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