Division 4.2.3 Unavailability of gaseous fuel when operating in a dual-fuel mode

In order to permit the non-road mobile machinery to move to a position of safety, upon detection of an empty gaseous fuel tank, or of a malfunctioning gas supply system:

1. (a)

   Dual-fuel engines of Types 1A and 2A shall activate the service mode;

2. (b)

   Dual-fuel engines of Types 1B, 2B and 3B shall operate in liquid mode.