Special Instructions; Control Unit A1E Of Ac Power Lift; Forced Lowering - Valtra 6000 Workshop Manual

32. Electro---hydraulic Power lift

1. Special instructions

A. Control unit A1E of AC power lift
Note! The internal function of the control unit has been
changed from analog to digital and the analog units are not
manufactured any more. In addition, a number of the ana-
log units in the store is limited.
The new digital unit replaces principally the analog unit. On
the earlier tractors, however, the lifting height display in the
dashboard does not function with the digital unit.
Suitability of the spare part units:
--- Unit 31287215: 6000---8750 up to 7.96
--- Unit 31287220: 6000---8750 *) from 8.96 incl (also earlier
tractors, which have AD ---instrument).
*) Modification in instrument, instrument no. 31542060.
Note! When the new digital unit is fitted on the earlier
6000 ---8750 tractors, the compensator A3E (32634500)
must be removed (to be disconnected from its connector).
The compensator has been removed in the tractor produc-
tion from new tractors (wire loom 31867940).
Note! With the new digital control unit the position sensor is
adjusted in the same way as on ACD ---power lift, see page
321/9.
Malfunctions of position sensor and forced
lowering
Position sensor
Up to manufacturing date 980331 of the digital unit the
position sensor may have malfunctions. The faulty units are
used in the tractor production from week 810 up to tractor
no. H27415. From the date 980401 the faulty functions
have been removed.
Note! The spare part units 31287220 do not cause the mal-
functions.
1. 8. 1998
If the AC power lift transport height has been adjusted
wrongly, the lift activation can disappear and the lower links
remain in the upper position.
At this time, stop the engine and switch off current. Restart
the engine and lower the lower links downwards by using
the push buttons. After this activate the lift normally. Carry
out repair by adjusting the position sensor a little outwards,
check the function..

Forced lowering

With the digital unit must always be used the forced ---lower-
ing wire loom 33009610. The earlier wire loom can cause
malfunctions. This new wire loom can be fitted as a spare
part in place of the earlier loom.
When using this wire loom, the forced lowering function can
be fitted as an option also on all earlier manufactured trac-
tors.
302
Model Code
6000-- 8150 320
Page
16