Differential Lock Control - Valtra 6000 Workshop Manual

35. Autocontrol II
B. Differential lock control
Picture 5. Differential lock components on tractor
Y1: Differential lock solenoid valve
K11, K12 and K13: control relays
S10 and S20: Brake pedal switches
V2: diodes
The differential lock rocking switch is placed on the selector
panel on the driver's right.
In addition, the lift/lower switch also controls the diff. lock.
The relays are places in the lever console and are accessible
after removing the console side panel:
K11: Switches off voltage to the diff. lock solenoid valve and
switches on current to the brake lights, when the brake
pedal/pedals are depressed. Switches on voltage again
to the solenoid valve, when the brake pedal/pedals are
released. Ind. light comes on.
Model
1. 1. 1994
K12: Switches on voltage to the solenoid valve, when the
rocking switch rear edge is depressed. Ind. light comes
on. When the brake pedals after this are depressed,
relay K11 is closed and current from relay K12 is cut---off
and the relay opens and switches off current to the sole-
noid valve and the ind. lights goes out. The diff. lock
does not engage after this although the brake pedals
are released.
K13: Switches off voltage to the solenoid valve and the lock
disengages, when the lift/lower switch is in the lifting
position. The lock ind. light , however, illuminates. When
the implement is lowered down to the working position,
switches on voltage to the solenoid valve and the differ-
ential lock is engaged.
245
Code Page
6000-- 8750 311 7