Valtra 6550 - Working Order; Setting Indexes of Transmission

509
Model Code Page
37. Autocontrol 5.2 (K41107---)
1. 8. 2000
371 6A
6250--8950
F. Working order
Setting indexes of transmission (AC 5.2)
1. Warm the transmission up to +30˚C

+60˚C
Note! If the tractor has HiTrol turbine clutch, carry out stall---test before automatic calibrations (see pagr 411---7).
2. AutoCalibration of shuttle clutches and PTO clutch:
Setting mode FIII
M4 (40 kph)
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3
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---Calibrate the forward clutch F
---Calibrate the reverse clutch R
---Calibrate the PTO clutch
CAL 1
CAL 2
CAL 6
M3 (50 kph, 8350Hi)
1700---1800 rpm
(Autocalibration sets the initial pressure and pre---filling time indexes
for the shuttle, initial pressure index for the PTO)
3 . M a k e a t e s t --- d r i v e
4. If the shuttle does not function properly make the AutoCalibration once more
Setting mode FIII
M4 (40 kph)
M3 (50 kph, 8350Hi)
1700---1800 rpm
---Calibrate the clutch that does not function properly
---Check that you have the right main gear selected
---Check that the tractor stays at a flat surface
--- Make a test drive (the shuttle)
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--- If the function is not good enough set the inde
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5 . M a k e a t e s t --- d r i v e
---Test the function of DPS (shift DPS speeds 1---2---3---2---1 at different situations like accelerating and motor braking)
6. If the DPS does not function properly make the AutoCalibration of DPS clutches:
Set the indexes no. 7, 8, 9 and 12 to zero, since the AutoCalibration
does not set the DPS pre---filling time indexes 7, 8 and 9 and the DPS
clutch C3 initial pressure index 12.
Setting mode FIII
M4 (40 kph)
M3 (50 kph, 8350Hi)
1700---1800 rpm
--- calibrate DPS clutch C1
--- calibrate DPS clutch C2
---The clutch C3 can’t be calibrated automatically
CAL 3
CAL 4
--- M a k e a t e s t d r i v e ( th e D P S )
--- If the DPS does not function properly set the indexes manually
Problems when shifting 1 > 2, Set indexes of the clutch C3 1)
Problems when shifting 2 > 3, Set indexes of the clutch C2 1)
Problems in shifting 3 > 2, Set indexes of the clutch C1 1)
Problems in shifting 2 > 1, Set indexes of the clutch C2 1)
Indexes 9, 12
Indexes 8, 11
Indexes 7, 10
Indexes 8, 11
7. Test the start of PTO (with an implement if possible).
--- If the PTO start is not good enough set the PTO indexes manually
1) Set first the pre---filling index to zero, since the correct index value is normally near zero. In addition, the effect of the pre---
filling index is not very big, since the piston free movement is short. After that is changed clutch initial pressure index up-
wards or downwards:
--- if traction disengages for a while during speed change, increase initial pressure index.
--- if there is a “double jerk” in the beginning of engagement, reduce the initial pressure index.
NOTE! The effect of the index change can be verified, when the speed change upwards is done in heavy loading.
Purchased From T.J.M Manuals