Krone BiG X 770-3 - Variloc Gearbox (Optional), Switching between 2 Gearbox Positions

Operation
579
18.5.14 VariLOC gearbox (optional), switching between 2 gearbox positions
It must be known in which position the VariLOC gearbox is.
If the position is not known, proceed as follows:
• Start the machine.
• Switch on the chopping drum and leave the diesel engine running at idle speed (1100 min
-1
).
• Open the menu 4-1-12 "Sensor test" and read the chopping drum speed.
Blade drum speed
Gearbox position
Approx. 660-760 rpm
Gearbox position I (transmission 1:1)
Approx. 440 – 506 rpm
Gearbox position II (transmission 1:1.5)
Table 65
WHBBX4463
1
2
Fig. 507
• Slacken the kraftband of the main belt drive, see page 693.
• Remove the screw connections (2) and remove the belt guard (1).
WHBBX4467
1
WHBBX4468
2
Fig. 508
• Place the hexagon wrench (1) on the gearbox.
• Place the wrench (WAF 36) (2) on the nut in the centre of the gearbox so that it is situated
at the height of the middle arrow.
• If the position of the wrench is not in alignment with the arrow, turn the belt pulley using the
hexagon wrench until the positions are in alignment.
• Lock the chopping drum, see page 701.