SERVICE BULLETIN
TECHNICAL SERVICE BULLETIN
Bulletin No.:

TSB-031

Date:

June 8, 2018

Subject:

VP Chassis Modification

Models:

All Quantum Virtual Pipeline Trailers

Background
Quantum Virtual Pipeline (VP) trailers utilize a standard
cargo container chassis configuration. The container
construction and its interface to the chassis is also an
industry standard design.

Condition
In some cases accelerated wear and corrosion at the
interface between the container front sill and the chassis
rail have been observed. This accelerated wear can result
in weakening of the front of the container and a settling of
the container on the chassis.
In certain chassis manufacturers products, if this condition
is not addressed, the container may wear to the point that
it could interfere with the glad hand bulkhead fittings
resulting in an air leak.

Cause
The high loads observed in this area of the container in conjunction with corrosion occurring in this area
may result in accelerated wear and damage to the front sill of the container.

Correction
A reinforcement bracket is being added to the chassis to help distribute the load on the front sill of the
container. In addition to distributing this load, a corrosion resistant wear strip is being added to the
container sill.
In cases where the container wear has already exceeded established limits, an additional repair process
to the container will need to be performed.

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Labor Time
All VP Trailers with Pratt Chassis:
All VP Trailers with Chassis King Chassis:
All VP Trailers with Cheetah Chassis:

Labor OP Time: Straight Time 0.6 Hour
Labor OP Time: Straight Time 1.0 Hour
Labor OP Time: Straight Time 1.0 Hour

Chassis Parts Information
Description
Chassis Update Kit, Chassis King
Chassis Update Kit, Pratt
Chassis Update Kit, Cheetah
Seal- Latch, Container

Part Number
119347
119377
119350
118998-001

Qty
AR
AR
AR
2

Container Parts Information
Description
Wear Plate, Container, Front Sill
Rivet- Stainless Steel

Part Number
119322
118880-006

Qty
AR
6

Repair Kit- Container, Front Sill

119372

1

Application
All Quantum Virtual Pipeline trailers manufactured before June 8, 2018

Contact Information:
E-Mail: [email protected]
Phone: 800.816.8691
Fax:
949.930.3401

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Repair Procedure, Trailer Preparation
1. Back and stop abruptly to shift container rearward on the chassis. Ensure that the front of the
container is not in contact with the chassis header. Make sure the trailer is parked on a flat,
hard surface.
2. Before disconnecting the tractor open the back door and verify the pressure gauges show
below 500 psi, if more pressure is present DO NOT PROCEED. The added weight from the
fuel in the cylinders may cause issues with lifting and or supporting the container.
3. Place trailer jacks under the two front corner
container supports.

Stands shown in 40’
(incorrect) position.

4. Remove the seals from the container latch
pins at the two front corners of the container
and retract the container pins.

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5. Retract the landing gear to allow the chassis to
drop from under the container.
Note: The chassis will not fully drop from
under the front of the container with only its
own weight, if necessary place a lever
between the container and the front of the
chassis to drop the front of the chassis
approximately 8” below the front of the
container.

6. Place metal or wooden blocks between the
container and the chassis to hold the front of
the chassis in a lowered position.

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Container Inspection
Inspect the container in the area shown
where it contacts the chassis, if there is wear
in the area shown document the depth of the
wear on the work order or paperwork.
If the wear is less than 0.050” (1.3 mm)
continue with this procedure.
If the wear is greater than the allowable limit,
note the wear on the work order and report
the wear to Quantum Service at
[email protected] or 800.816.8691 then
continue with Chassis retrofit procedures.
1. Loose fit the wear strip to the lower channel of
the container, ensure it is fully seated against
the bottom of the container channel.
2. Mark the holes to be drilled in the center of the
slots.

3. Drill the six holes to 0.25” (0.63 mm)
4. Apply a zinc rich primer or equivalent to the
drilled holes.

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5. Apply silicone or RTV sealer to all corners and
edges of the inner surface of the wear strip
and install on the container channel.

6. Apply silicone or RTV sealer to the rivets and
secure the wear strip in place with 6 rivets.

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Repair Procedure, (Chassis King Chassis)
1. Disconnect the air lines from the glad hand
bulkhead fittings.
2. Remove and discard the glad hand bulk head
and fittings.
3. Install chafe protection over the air lines as
shown.

Apply a zinc rich primer or equivalent to any
exposed metal surfaces around the glad hand
bulkhead holes.

4. Route the air lines through the hole with the
electrical harness as shown.

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5. Clean all dirt and debris from the area where
the support channels will be placed.
6. Position the shim holders on the bottom of the
container support channels and position the
container support channels in the appropriate
locations (Left and Right), the holes in the
support channels should align with the glad
hand bulk head holes.

7. Place a straight edge across the frame rails
and support channels. Gauge the needed
shim stack that needs to be added by placing
shims between the container support channel
and the straight edge. Repeat this process one
shim location at a time as shown.
The shim stack should result in zero clearance
between the straight edge and the support
channel or slightly lift the straight edge but no
more than 0.050”.

8. Place the shims in the shim holders and verify
the final support channel height is between
flush to 0.050” (1.3 mm) above the frame rail
height.

9. Secure the calculated shim packages to the
support channels as shown with stainless steel
rivets.

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10. Place the container support channels with the
shims installed back in the appropriate
locations, verify the support channels are level
and the height of the support channel is within
specification.

11. Place the emergency glad hand support
bracket in position and secure through the
chassis header panel and support channel.
Tighten to 35 lb ft (47 N.m)
12. Repeat the previous step for the service glad
hand support bracket.

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13. Install the new glad hands on the glad hand
support brackets.
IMPORTANT: Verify the RED glad hand is
installed on the Emergency side and the BLUE
glad hand is installed on the service side.
Tighten fasteners to 16 lb ft (22 N.m)

14. Trim the air lines to the appropriate length and
connect to the repositioned glad hands.
IMPORTANT: before trimming the air lines verify
the new routing is not causing any strain or
abrasion points on the air lines.

15. CONTINUE TO REASSEMBLY PROCEDURE

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Repair Procedure (Pratt)
1. Clean all dirt and debris from the area where
the support channels will be placed.
2. Remove the nuts and bolts retaining the trailer
electrical connector.

3. Position the shim holders on the bottom of the
container support channel and position the
container support channel in the appropriate
location.
Verify the support channel sits flat on the plate
in the chassis and does not interfere with or
impact any of the air or electrical connections

4. Place a straight edge across the frame rails
and support channels. Gauge the needed
shim stack that needs to be added by placing
shims between the container support channel
and the straight edge. Repeat this process one
shim location at a time as shown.
The shim stack should result in zero clearance
between the straight edge and the support
channel or slightly lift the straight edge but no
more than 0.050”.

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5. Place the shims in the shim holders and verify
the final support channel height is between
flush to 0.050” (1.3 mm) above the frame rail
height.

6. Secure the calculated shim packages to the
support channels as shown with stainless steel
rivets.

7. Place the container support channels with the
shims installed back in the appropriate
locations, verify the support channels are level
and the height of the support channel is within
specification.

8. Place bolts with flat washers through the trailer
electrical connector and secure through the
chassis header panel and support channel.
Tighten to 35 lb ft (47 N.m)

9. CONTINUE TO REASSEMBLY PROCEDURE

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Repair Procedure (Cheetah)
1. Clean all dirt and debris from the area where
the support channels will be placed.

2. Remove any p-clips as needed and tie wire
harness away from area where block will rest.

3. Position the shim holders on the bottom of the
container support channel and position the
container support channel in the appropriate
location.
Verify the support channel sits flat on the plate
in the chassis and does not interfere with or
impact any of the air or electrical connections,
the mounting hole should be toward the
passenger side.

4. Place a straight edge across the frame rails
and support channels. Gauge the needed
shim stack that needs to be added by placing
shims between the container support channel
and the straight edge. Repeat this process one
shim location at a time as shown.
The shim stack should result in zero clearance
between the straight edge and the support
channel or slightly lift the straight edge but no
more than 0.050”.

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5. Place the shims in the shim holders and verify
the final support channel height is between
flush to 0.050” (1.3 mm) above the frame rail
height.

6. Secure the calculated shim packages to the
support channels as shown with stainless steel
rivets.

7. From the back side, insert a marker through
the channel to mark the hole position on the
header panel.
Remove the channel and from the inside of the
header panel drill an 1/8” hole and verify the
hole is properly positioned.

8. Once the hole position is verified, drill the
mounting hole to ½”.

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9. Place the container support channels with the
shims installed back in the appropriate
locations, verify the support channels are level
and the height of the support channel is within
specification.

10. Install the supplied hardware and secure the
support channel to the chassis header panel.
Tighten to 33 lb ft (45 N.m)

11. CONTINUE TO REASSEMBLY PROCEDURE

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Repair Procedure, Reassembly
1. Remove the metal or wooden blocks
separating the Chassis and the container.

2. Extend the landing gear to remove the weight
from the trailer stands.

3. Position the two front container latch pins in
the locked position and secure the latch with
an appropriate seal.

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Completed Retrofit

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