Fuel supply system - natural gas engines

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety regulations for working on fuel supply
  1
• 1.2 Safety measures when working on vehicles with start/stop system
  1
• 1.4 Safety precautions when working on vehicles with a gas system
  2
• 2 Identification
  5
• 2.1 Engine number/engine data
  5
• 3 General information
  6
• Fuel supply system
  7
• 1 Fuel system
  7
• 1.1 Overview of fitting locations - fuel system
  7
• 2 Fuel
  11
• 2.1 Assembly overview - fuel tank
  11
• 2.2 Assembly overview - natural gas fuel tank
  14
• 2.3 Assembly overview - fuel tank shut-off valve
  31
• 2.4 Assembly overview - filler neck
  32
• 2.5 Closing fuel tank shut-off valves N361/N362/N363/N429 by mechanical means
  34
• 2.6 Emptying fuel tank
  36
• 2.7 Removing and installing fuel tank
  53
• 2.8 Removing and installing natural gas fuel tanks
  56
• 2.9 Bonding protective film to natural gas fuel tank
  94
• 2.10 Determining residual pressure in natural gas fuel tank
  99
• 2.11 Removing and installing fuel tank shut-off valve
  117
• 2.12 Releasing pressure in high-pressure line
  127
• 2.14 Removing and installing filling connection
  140
• 3 Fuel delivery unit, fuel gauge sender
  143
• 3.1 Assembly overview - fuel delivery unit/fuel gauge sender
  143
• 3.2 Removing and installing fuel delivery unit, fuel gauge sender
  144
• 3.3 Installation position of fuel delivery unit
  145
• 3.4 Removing and installing tank breather valves
  146
• 4 Senders and sensors
  147
• 4.1 Removing and installing fuel gauge sender G
  147
• 5 Plug-in connectors
  148
• 5.1 Separating plug-in connectors
  148
• 6 Fuel filter
  152
• 6.1 Assembly overview - fuel filter
  152
• 6.2 Removing and installing fuel filter
  152
• 7 Activated charcoal filter system
  154
• 7.1 Assembly overview - activated charcoal filter system
  154
• 7.2 Checking fuel tank breather
  154
• 8 Accelerator pedal
  156
• 8.1 Assembly overview - accelerator module
  156
• 8.2 Removing and installing accelerator pedal module GX2
  156
• 9 Fuel pump
  159
• 9.1 Checking fuel system pressurisation pump G6
  159