Welger P 202 SPECIAL, Руководство по эксплуатации

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84 WELGER RP 202 • RP 220 • RP 302 • RP 320
Main drive chain
The main drive chain must be tensioned so far that the distance
between the upper and the lower pulley is about 90 mm (fig.
101).
Worm and pick-up drive chain
Chain tensioning of the worm and pick-up drive chain is effected
by a silentbloc chain tensioner and two tensioning blocks (fig.
102).
After loosening of the screw on the square block the silentbloc
must be turned to the effect that the arrow reaches 15° on the
scale. Then retighten the screw.
After loosening the screw connection, tension the tensioning
blocks (one each on the left and on the right machine side) so
far that the upper strand of the chain (above the tensioning
block) can still be depressed by about 10 mm.
12.17. Winter break
Before a winter break:
• Remove all crop residues from the machine.
• Thoroughly lubricate all bearings.
• Remove, grind and reinstall cutter blades.
•
Grease wrapping unit.
•
Check and – if necessary – adjust air pressure.
fig. 101
fig. 102