GF26.20-W-2002A | Emergency shift, function | 19.5.06 |
TRANSMISSION 715.5 in MODEL 375.4 with BODY 375.840 with CODE (GS2) Gear control
TRANSMISSION 715.5 in MODEL 944 with BODY 944.899 with CODE (GS2) Gear control
TRANSMISSION 715.5 in MODEL 950, 952, 953, 954 with BODY 940.899 with CODE (GS2) Gear control
TRANSMISSION 715.5 in MODEL 950, 952, 953, 954 with BODY 942.899 with CODE (GS2) Gear control
TRANSMISSION 715.5 in MODEL 957 with BODY 957.810 with CODE (GS2) Gear control
General information
The emergency shift permits a limited shift possibility to permit an emergency running mode.
If minor system faults exist, the gearbox can be shifted conditionally by means of an emergency switch that is positioned on the rear of the GS/EPS shift control unit.
If more severe system faults occur, however, only an emergency shift at the gearbox is possible. Two adjusting screws and a tool are included in the vehicle document wallet for shifting a gear stage on the shifter shaft itself.
Function
When the emergency switch in the GS/EPS shift control unit is operated, the matching gear, gate or range solenoid valves are actuated. This results in air being admitted to the relevant working cylinders thus shifting the gears.
When in emergency shift mode only 2nd. gear, 5th. gear, neutral and the reverse gear are available.
It is possible to shift from 2nd gear into 5th gear when driving. The other gears can only be shifted when the vehicle is stationary and the engine running.
In the event of major system errors the shifter shaft tool can be used to turn the shifter shaft.
The gear stages 1 and 2 can be shifted from the Neutral position.
In order to engage gear stages 3 and 4 or reverse gear, a plug on the shifter shaft must be removed and replaced by the appropriate adjusting screw.
The shifter shaft tool can then be used to turn the shifter shaft and to lock the required gear stage.
Then it is only possible to drive with the gear engaged. Gears cannot be changed while driving.