Farmi Forest CH27 ACC, Operation, Maintenance And Spare Parts Manual

Page: 35 / 128

35 CH27 ACR & ACC
A
A
1
2
20-40 mm
SHORTENING THE PTO SHAFT
The use of too long a PTO shaft with
a 3-point hitch could damage the
chipper’s bearings or the tractor’s
PTO shaft. Both halves of the PTO
shaft must be shortened equally.
Recommended PTO shafts:
• Bondioli & Pavesi G8 + RA2 overrunning clutch on
the chipper side
• Walterscheid W 2500 + F5/2L overrunning clutch on
the chipper side
If the tractor features a PTO brake, an overrunning clutch
must be used.
1. Mount the machine on the tractor’s 3-point hitch.
2. Lift the machine with the hitch so that the distance bet-
ween the splined shafts is at its shortest. Fig. 8.
3. First, cut the thicker shield to the correct length (1). Re-
member the 20-40 mm clearance. Then, cut a similar
length from the profile tube (2). Shorten the other
PTO shaft half similarly. Remove burrs using a file.
4. Insert the inner tube in the outer tube and carefully
move the machine up and down. Ensure that the
shaft was shortened sufficiently. Check that the shaft
has a 20-40 mm clearance. In addition, move the
machine sideways and ensure that the PTO shaft does
not bottom.
Measure distance A when the distance between the splin-
ed shafts is at its shortest.
Shortening the PTO shaft
ATTENTION