Buhler 2425 - Manual (Page 178)

SECTION 2 - OPERATION
2-120
3. Start the tractor with the transmission in
neutral and the PTO switch, 1, in the off
(clutch disengaged) position.
4. With the PTO clutch disengaged, raise and
lower the implement to ensure proper
clearance exists between the tractor and
implement. Be sure the implement is free of
obstructions.
Figure 2-159
1