NHTSA ID Number: 10168764
Manufacturer Communication Number: TSB-039
TSB/Document Date: 2019-12-04
Summary
A change can be made to the routing of the pneumatic actuator activation circuit so that use of the emergency air supply side will bypass the front and rear master control valves, the actuator control valve and much of the plumbing connecting these valves. By making this change the probability of the emergency air supply feature working after an accident is greatly improved.
SERVICE BULLETIN
TECHNICAL SERVICE BULLETIN
Bulletin No.:
TSB-039
Date:
November 8, 2019
Subject:
Emergency Air Supply System
Models:
All Quantum Virtual Pipeline Lite Trailers
Background
Quantum Virtual Pipeline (VP) trailers are equipped with a
port and valve that allows the introduction of an off board
air or gas supply to activate the pneumatic actuators. This
feature can be used by service personnel or by emergency
responders to allow for opening of the pneumatic actuators
from a safe distance.
Condition
Currently the port to supply off board gas or air is at the
beginning of the pneumatic actuator activation circuit, any
damage that occurs to any portion of the pneumatic
actuator activation circuit can inhibit use of the system.
Cause
In the event of an accident, the plumbing used to connect the pneumatic actuators may be damaged. If this
plumbing becomes damaged the pneumatic actuators may not be able to be opened using the onboard
gas supply or by using an off board air or gas supply.
Correction
A change can be made to the routing of the pneumatic actuator activation circuit so that use of the
emergency air supply side will bypass the front and rear master control valves, the actuator control valve
and much of the plumbing connecting these valves.
By making this change the probability of the emergency air supply feature working after an accident is
greatly improved.
If the customer chooses to make this modification on an older trailer, a parts kit and instructions will be
provided at no cost. Following the supplied instructions, the installation can be completed by any service
personnel familiar with working with CNG systems or Quantum VP trailers.
All pneumatically actuated production trailers built after October 21, 2019 have been built at the factory with
this new pneumatic routing.
11/14/2019 Revision B
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Labor Time
The estimated labor time to complete this repair is between 45’ Trailers:
The estimated labor time to complete this repair is between 20’ / 40’ Trailers:
All VP Lite Trailers:
Labor OP: G0007
Parts Information
Description
KIT- PNEUMATIC MOD, VP, 45’
KIT- PNEUMATIC MOD, VP, 40’
SCREW, HEX HEAD, CONICAL WASH, M8 X 25
NUT- U-SHAPE, LOCKING, M8, LONG
2.0 - 4.0 hours.
4.0 - 6.0 hours.
Time: Approval required for excess time
Part Number
120359
120358
S1-20381-008
118731-012
Qty
A/R
A/R
A/R
A/R
Parts for this modification are currently available for order.
Application
This bulletin may be applied to all the VP Lite Trailers indicated below.
•
•
All Quantum 45’ VP lite trailers with double doors built before 10/21/19
All Quantum 20’ and 40’ VP lite trailers with a single door built before 10/21/19
Special Tools
Completion of this procedure will require the use of equipment to safety remove the trailer roof panels and
work at the top of the trailer.
Contact Information:
E-Mail: [email protected]
Phone: U.S. 800.816.8691
Outside U.S. 949.930.3411
Fax:
949.930.3401
11/14/2019 Revision B
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45’ two door procedure
The following procedure can be used to modify 45’ VP Lite trailers with two rear doors built before
October 21, 2019
1. Mark the position of the roof panels for ease
of reinstallation later.
2. Remove and retain the fasteners holding the
front and rear roof panels. Remove the front
and rear roof panels.
If the trailer is equipped with a side mounted
front master control valve the front two roof
panels will need to be removed.
3. Close the ¼ turn valve above the regulator to
isolate the gas supply system from the
plumbing that will be rerouted.
11/14/2019 Revision B
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On systems equipped with a forward master control valve on the front of the trailer.
i.
ii.
iii.
Disconnect the green tubing from the master
control valve riser (a).
Disconnect the green tubing from the tee
fitting (b).
Cut off the tube end with the existing brass
nut and ferrule and install a new stainless nut
and ferrule on the end of the tube.
Connect the tubing that was disconnected
from the tee fitting to the master control valve
riser (c).
A
B
C
Tighten 90° – 360° TFFT
iv.
The picture to the right shows the new
completed routing and connection (in red)
over the top of the original configuration
v.
Secure the loop of the hose as needed with
tie wraps.
Continue with this retrofit procedure
11/14/2019 Revision B
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On systems equipped with a forward master control valve on the side of the trailer.
i.
Disconnect the green tubing from the master
control valve riser (A).
ii.
Cut the ¼” green tubing approximately at the
area indicated (B).
iii.
iv.
On the rear portion of the tubing that was cut,
install a new insert, nut and ferrule on the
tubing.
The stainless nut and ferrule set MUST be
used for this connection.
B
A
C
Connect the rear portion tubing that was cut
to the master control valve riser (C).
Tighten 90° – 360° TFFT
v.
The picture to the right shows the new
completed routing and connection (in red)
over the top of the original configuration
vi.
Secure the loop of the hose as needed with
tie wraps.
11/14/2019 Revision B
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vii.
Disconnect the green tubing from the tee
fitting at the front of the trailer.
viii.
Remove and discard the ¼” tubing from the
clips between the master control riser and the
tee fitting.
Continue with the retrofit procedure
11/14/2019 Revision B
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4. Remove and retain the ¼” tube tee fitting and
¼” NPT coupler from the ½” tube tee fitting.
5. Apply thread sealant to the NPT cap fitting
and install the cap in the fitting.
Tighten the cap 1-3 TFFT
6. At the left rear top of the trailer remove and
discard the fitting from the ½” green line.
7. Install previously removed ¼” NPT” x ¼” x ¼”
tee fitting and connect the ¼”tube previously
disconnected (A). Verify the open port is
facing rear ward.
Tighten 90° – 360° TFFT
8. Secure the fitting to the bracket using a tie
wrap.
11/14/2019 Revision B
A
Straight fitting shown elbow similar
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9. Connect a 14’ section of ¼” red tubing
(shown in red) to the tee fitting just installed.
Route the tubing adjacent to the other tubes
and secure as needed. Three position plastic
clips (not shown) positioned above the
existing clips will provide support for the new
tube.
Tighten 90° – 360° TFFT
11/14/2019 Revision B
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10. Remove and discard the blue tube (shown
purple) that connects the center port of the
emergency air supply valve to the top port of
the actuator control valve.
11. Remove and discard the green tube (shown
in purple) that connects the LH port of the
emergency air supply valve to the regulator.
12. Locate the green tube from the actuator gas
pressure gauge (shown in red) that goes up
the side of the container (shown in red). Cut
the line approximately in the area shown and
install the tee fitting.
Tighten 90° – 360° TFFT
11/14/2019 Revision B
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13. Install a 2’ section of green tubing from the
tee fitting to the LH port of the emergency air
supply valve.
Tighten 90° – 360° TFFT
14. Connect the previously installed red tube
routed from the tee fitting above to the center
port of the emergency air supply valve.
Tighten 90° – 360° TFFT
15. Install a 3’ section of green tubing from the
regulator outlet fitting to the top port of the
actuator control valve.
Other lines removed for clarity
Tighten 90° – 360° TFFT
16. Open the previously closed ¼ turn valve
isolating the gas supply system.
11/14/2019 Revision B
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17. Open the ¼ turn valve above the regulator to
supply gas to the system.
System Test
18. Verify operation of the actuator control system
using on board gas supply.
19. Leak check all disturbed fittings and
connections while the actuators are in the
open position.
20. Verify each of the master control valves work and inhibit actuator function.
21. Verify the emergency air supply system works to open the actuators while in the air supply
position.
22. Locate the roof panel that was marked during
removal for the position being installed. Place the
roof panel in the position and align as needed.
IMPORTANT: Use care when positioning the
panels, when sliding the panels across the cross
members, the edge of the roof panel can catch and
knock off the U-Nuts.
Where panels overlap, the forward panel
should always be on top of the panel to the
rear.
23. Loose fit all the roof panel fasteners; be sure to
replace any fasteners that may have been missing
prior to disassembly.
Tighten fasteners to 22 ft. lbs (30 Nm.)
11/14/2019 Revision B
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20’ and 40’ single door procedure
The following procedure can be used to modify 20’ and 40’ VP Lite trailers with a single rear door built
before October 21, 2019
1. Mark the position of the roof panels for ease
of reinstallation later.
2. Remove and retain the fasteners holding the
roof panels. Remove and retain all the roof
panels.
3. Close the ¼ turn valve adjacent to the
regulator to isolate the gas supply system
from the plumbing that will be rerouted.
11/14/2019 Revision B
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A
C
B
4. Disconnect the green tubing from the master control valve riser (A).
5. Disconnect the green tubing from the tee fitting at the front of the trailer (B).
6. Remove and discard the section of green tubing between the tee fitting and the master control
valve riser (C).
7. Remove and discard the tube fitting from the
tee fitting.
8. Apply thread sealant to the NPT threads and
install a NPT pipe cap on the tee fitting.
Tighten 1-3 TFFT
9. At the left rear top of the trailer disconnect the
¼” green tube from the ½” green line.
11/14/2019 Revision B
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10. Connect a 14’ section of ¼” red tubing
(shown in red) to the tee fitting shown. Route
the tubing adjacent to the other tubes but do
not secure at this time.
Tighten 90° – 360° TFFT
11. Connect a 50’ length of green tubing to the
forward master control valve riser, route and
secure the line approximately as shown.
The stainless nut and ferrule set must be used
for this connection.
12. Route the green tube toward the rear of the
trailer securing in the empty cavity of the line
clips down the length of the trailer.
11/14/2019 Revision B
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13. Continue routing the green line down the side
of the trailer as shown. As the green line is
routed and secured, secure the red line
previously installed, to the other lines as
required.
Three position plastic clips (not shown) can be
used to help support the red line down the
inside of the container.
14. Disconnect the green tube from the applied
pressure gauge. Remove and discard the
tube.
15. Disconnect the blue tube from the top port of
the actuator control valve and the center port
of the emergency air valve. Remove and
discard the tube.
11/14/2019 Revision B
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16. Remove and discard the green tube
connecting the LH port of the emergency air
valve and the supply pressure gauge.
17. Disconnect the green hose from the LH side
of the emergency air valve (A) and connect it
to the top port of the actuator control valve
(B).
B
A
18. Cut the green tube just connected to the top
port of the actuator control valve in the
approximate location shown and install a tee
fitting.
Tighten 90° – 360° TFFT
11/14/2019 Revision B
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19. Install about a 2’ length green tubing between
the tee fitting and the supply pressure gauge
as shown.
Tighten 90° – 360° TFFT
20. Install about a 2’ length green tubing between
the LH pot of the emergency air valve and the
applied pressure gauge.
Tighten 90° – 360° TFFT
21. Drill two ¼” holes in the panel adjacent to the
tee fitting that was just installed approximately
as shown. Secure the tee fitting to the panel
using a ty strap.
11/14/2019 Revision B
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22. Connect the previously installed red tube
routed from the tee fitting above, to the center
port of the emergency air supply valve.
Tighten 90° – 360° TFFT
23. Connect the previously installed green tube
routed from forward master control valve riser
to the LH port of the emergency air supply
valve.
Tighten 90° – 360° TFFT
24. Open the ¼ turn valve adjacent to the
regulator to supply gas to the system.
System Test
25. Verify operation of the actuator control system
using on board gas supply.
26. Leak check all disturbed fittings and
connections while the actuators are in the
open position.
27. Verify each of the master control valves work
and inhibit actuator function.
28. Verify the emergency air supply system works to open the actuators while in the air supply
position.
11/14/2019 Revision B
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29. Locate the roof panel that was marked during
removal for the position being installed. Place the
roof panel in the position and align as needed.
30. IMPORTANT: Use care when positioning the
panels, when sliding the panels across the cross
members, the edge of the roof panel can catch
and knock off the U-Nuts.
Where panels overlap, the forward panel should
always be on top of the panel to the rear.
31. Loose fit all the roof panel fasteners; be sure to
replace any fasteners that may have been
missing prior to disassembly.
Tighten fasteners to 22 ft. lbs (30 Nm.)
11/14/2019 Revision B
19
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