Operation of the Rotary Harvesting Unit
Continued on next page KM00321,0000284 1922FEB101/6
Length of Cut and Drum Speeds with CLAAS
Forage Harvester 830900 (Type 493)
2speed gear box
The twospeed gear box of the rotary harvesting unit is
available in two versions:
•
Speed increase for normal to long length of cut
(standard)
•
Speed reduction for short length of cut (option)
See tables below to determine lengthofcut adjustment.
Cutterhead with 28 knives (type 493)
Twospeed gear box (III) for normal to long length of
cut (standard)
KM1001122 —UN—22FEB10
I—Length of cut, number of knives II—Lengthofcut
transmission, forage
harvester
III—Rotary harvesting
unit drive
IV—Gathering drum
speed
2x14 knives 2x7 knives
Gear Gear
rpm
5.1 mm 10.2 mm 1 51
6.0 mm 12.0 mm 1 51
6.9 mm 13.8 mm 1 51
7.7 mm
15.4 mm 1 51
8.6 mm 17.2 mm
1
2 64
6.9 mm 13.8 mm 1 51
7.7 mm
15.4 mm 1 51
8.6 mm 17.2 mm 2 64
9.4 mm 18.8 mm 2 64
10.3 mm 20.6 mm 2 64
11.1 mm 22.2 mm 2 64
12.0 mm 24.0 mm
2
2 64
3014
040810
PN=66