DEUTZ-FAHR FL35-70HP Series, Operation Manual

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Electrical system
141
Important:
1. During operation of the engine, press the main clutch pedal fully before gearshift to avoid poor
engagement of the engagement sleeve of the transmission, resulting in "Gear collision"
phenomenon.
2. The reverse gear can be engaged only when the tractor is standstill.
3. When the tractor is operating, do not put your hand on the gear shift lever, otherwise the pressure
exerted by your hand will be transferred to the gear shift fork in the transmission to cause early wear
of the fork.
4.7.
4.7.Front Wheel Drive-Differential Lock
4.7.1.Four-wheel drive engagement
FL35-70HP Series four-wheel drive tractor is driven only by the rear wheels when it works at heavy load in field or
on humid and soft soil, the tractor's traction force may be insufficient; at this moment, coupling the front drive axle
can increase traction force of the tractor and reduce the slippage rate, so as to enhance working suitability of the
tractor. To engage and separate the front drive axle, the following operating procedures should be observed.
4.7.2.Engagement of the front drive axle
Depress the main clutch pedal, set the transmission to a proper
gear. Pull up the four-wheel drive control lever to engage the
four-wheel drive. If it is difficult to pull up the control lever,
this could result in failure in four-wheel drive engagement. In
this case, you can slowly release the clutch pedal. When the
tractor moves a little, pull up the front drive axle control lever,
to change the two-wheel drive into four-wheel drive.
Fig. 4-17
4.7.3.
4.7.3.Disengagement of the front drive axle