TRANSMISSION
Ch 2 page 18 Ch 2 page 19
TRANSMISSION
SHOP MANUAL MT26/31 - 08.2006 SHOP MANUAL MT26/31 - 08.2006
TRANSMISSION
Ch 2 page 18 Ch 2 page 19
TRANSMISSION
SHOP MANUAL MT26/31 - 08.2006 SHOP MANUAL MT26/31 - 08.2006
Oil level check.
In the cold start phase, the engine must be running about 2 – 3 minutes at idling speed and the marking on the
oil dipstick must then be above the cold start mark.
The oil level check in the transmission must be carried out at engine idling speed and operating temperature of
the transmission (80° to 90° C).
At every oil change, the Fine filter must be exchanged. In addition, ZF recommends to start the auto
-
matic calibration of the shifting elements (AEB). (See at chapter 2.2)
The automatic calibration of the shifting elements (AEB) must be started after every replacement of the trans
-
mission, the electrohydraulic control or the TCU in case of a damage.
Put the Controller at the starting of the engine always to the Neutral position.
At running engine and transmission in Neutral, the parking brake must be engaged or the service brake be
actuated, to prevent the vehicle from rolling.
Prior to every start off, loosen the parking brake.
The engagement of the speed out of Neutral is only possible below the programmed transmission input speed
(turbine speed).
Reversing (Standard):
The reversing must be performed at standstill, resp. at very low driving speed.
Above the programmed reversing limit, the vehicle will be shifted to Neutral by the Electronic unit EST-37, and
the vehicle continues rolling in the previous driving direction.
The gear of the new driving direction will be only engaged when the programmed reversing speed and the
transmission input speed (turbine speed) has fallen below.
At cut-off engine, there is dispite preselected gear no powerflow between transmission and engine, i.e. the
transmission is in idling position.
The parking brake must therefore be completely actuated !
When leaving the vehicle, secure it additionally by brake blocks !
The towing speed must in no case be higher than 10 km/h, the towing distance not longer than 10 km.
It is imperative to observe this Specification because otherwise the transmission will be damaged due to insuf
-
ficient oil supply !
At a longer distance, the best solution would be to transport the vehicle with a Low loader.
MEASURED AT LOW
IDLING-NEUTRAL
Zone
"COLD"
H H L H
Zone
"HOT"
L C
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