Jungheinrich DFG 320 Operating Instructions Manual page 62

Towing trailers: see chapter 4.8, page E35.
F
Exhaust emissions: The truck must only be operated in well ventilated areas. If the
truck is operated in enclosed areas, this can lead to a build-up of harmful exhaust
emissions, resulting in dizziness, tiredness and even death.
M
The user must comply with legal requirements, technical standards and health and
safety regulations when operating an IC engine powered lift truck in closed rooms.
Emergency Disconnect with truck electronic system deactivation: All electrical
functions are switched off.
Set the key switch to the O position. For trucks with a cabin or a canvas top the doors
must be open. Press the pushbutton in the leg area. The engine panel opens, remove
blue quick release lock from the battery pool.
F
For gas operated trucks the shutoff valve on the gas tank or gas bottle must be
tightened to prevent the gas from entering the engine area.
E 21