8
NEW STRALIS MY2016
‒
GUIDELINES FOR BODYBUILDERS
STRALIS NP - CURSOR CNG-LNG
A.4
REQUIREMENTS
–
Printed 692.68.697
–
5 Ed. - Base 03/2019
d) Safety solenoid valve (CNG)
Valvola
Figure 2
Each cylinder is fitted with a valve assembly consisting of the follow-
ing devices:
●
Manual closure for maintenance and shut-off;
●
One-way solenoid valve served by the ignition key which inter-
rupts the flow entering the cylinder: thus the cylinders must be
charged when the solenoid valves are not powered.
●
the flow relief valve intervenes in the event of a sudden change
in pressure, significantly limiting the outward flow of gas from
the cylinders (for example if a pipe breaks);
●
the fusible plug (T-PRD) which in the event of a fire melts at
103
±
10
°
C and allows the gas to exit directly into the external
environment, preventing the cylinder from exploding
●
the safety valve to control the pressure (P-PRD), with an open-
ing threshold of 340 bar.
Note
Safety valves are not interchangeable and the respective orienta-
tion must not be modified.
A.4
REQUIREMENTS
General instructions
Note
If extending or shortening the wheelbase length from a type-approved length to a type-approved length, authorisation from IVECO
is not necessary if the gas system remains unchanged in terms of layout and position on the chassis.
If changing the configuration or layout, authorisation is required even if one of the possible type-approved alternatives is to be used.
The modifications must only be made by specialised personnel, working in authorised and certified workshops.
●
Before any intervention, fully discharge the gas present in the pipes. This is possible by implementing the "Partial emptying"
procedure (see Chapter A.5 ).
●
Parts must be kept perfectly clean, and care must be taken to ensure that no sediment or foreign bodies can enter during
handling operations.
●
Pay particular attention to the direction of installation of all electrical connections.
●
All threaded connections must be tightened to the torque specified for special components for the first equipment.
●
Washers, conical washers, self-locking nuts and gaskets are of a designated type and deform to contribute to the tightening
efficiency; therefore, before reassembly, these parts must be replaced.
▶
Regardless of the reason for the disassembly, the power supply system components (in particu-
lar, the valves on the cylinders) must be replaced.
Содержание Stralis MY 2016
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Страница 7: ...Printed 692 68 697 5 Ed Base 03 2019 SECTION 1 GENERAL INFORMATION...
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Страница 27: ...Printed 692 68 697 5 Ed Base 03 2019 SECTION 2 CHASSIS INTERVENTIONS...
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Страница 87: ...Printed 692 68 697 5 Ed Base 03 2019 SECTION 3 APPLICATIONS OF SUPERSTRUCTURES...
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Страница 165: ...Printed 692 68 697 5 Ed Base 03 2019 SECTION 5 ELECTRONIC SUB SYSTEMS...
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Страница 235: ...Printed 692 68 697 5 Ed Base 03 2019 APPENDIX A STRALIS NP CURSOR CNG LNG...
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