الخميس، 25 يوليو، 2013

Adjustments to the knives in big baler

-Know and explain the different knife drawer options
-
-Adjust the knife drawer to work in the field

-Change the knives in the knife drawer
1. Center the knives in the rotor
Loosen (2)             Adjust and center knifes 
  to rotor with (3)       tighten (2)
To centre the crop cutting knives, the locking plate of
the knife drawer can be adjusted.
2. Adjustment of knife frame latching hooks

retract cilinder                 loosen (4)
adjust X=1mm with (6)     tighten (4)
2.Adjustment of knife frame latching hooks.
Retract knife frame hydraulic cylinders completely. Adjust with eyebolt ref.6 a clearance   of X=1mm between latching hook ref.2 and latching plate ref.3. Adjustment to be made on both sides of the machine

3. Knife replacement
Lower the knife drawer hydraulically from  tractor
Slide open the knife drawer
Replace the knives – place false knives when knive is removed
Follow reverse way to close the drawer
remark : It is no longer necessary to unlock the knives.
 

4. Knive sharpening
Field test results indicate the knives can best be
resharpened after approximately 500 bales in clean
crop conditions. In contaminated crop conditions
resharpening may be necessary after 200 bales.
Grind on the smooth side of the knife only, never
on the notched side.
When reinstalling the knives, make sure they
regularly change position in the machine, i.e. middle
ones on the outside and vice versa, to equal out their
wear pattern

5. Knife drawers available
BB9050 & BB9060
Packer cutter : 6 knives (as BBA)
Rotor cutter : Standard - 11 knives
                      Short Cut option – 23 knives (as BBA)
BB9070 & BB9080
Rotor cutter : Standard Cut – 17 knives
           Short cut option – 33 knives (as BBA)