GMD24-GMD28 / HD
40
6. - Putting into service
KN226BGB_A
Disc mower
6.2.8 Primary PTO shaft
Before using the machine for the first time:
- Grease the transmission.
- Check overlap of the u-joint drive shaft and
adjust length if necessary to avoid any
premature wear.
The direction of rotation is shown on a decal.
- The tractor PTO must rotate at a speed of 540/min.
- Separate the two half PTO shafts and connect
them to the machine's input shaft and to the tractor
PTO stub.
- Check the length of the PTO shaft:
• When the PTO shaft is in its maximum overlap
position (retracted), tubes should not butt against
the yokes. Keep a minimum safety travel L of 25
mm (1’’).
•
When extended to the maximum, the tube
overlap must not be below 250 mm (10’’).
If this is not the case:
- Mark length (H) to cut when the transmission is the
maximum overlap position.
- Shorten the guard tubes and the transmission
tubes by the same length.
- Bevel and clean the tubes.
- Grease the inside of the outer tube.
H
L
