ASSEMBLY

CHANGING ROTATION OF CUTTERSHAFT

Standard cuttershaft rotation is forward rotation as shown in the diagram. To reverse cuttershaft rotation, the wing drive gearbox must be flipped over 180 degrees and the center mower drive components moved to the opposite side. When changing rotation of cuttershafts, (coarse cut only) knife pins on wing mower sections must be reinstalled in opposite direction.

Center Cuttershaft Rotation Reversal

1.To reverse direction of cuttershaft rotation, three left hand parts must be ordered: belt guard, outboard bearing plate, and an idler pulley arm. A front trash deflector is also required. Refer to the parts section of this manual for part numbers and ordering information.

2.With the mower housing securely blocked up, remove cuttershaft and turn 180 degrees.

3.Remove gearbox cuttershaft drive pulley and outboard bearing plate. Attach new mounting plate to opposite side of mower housing.

4.Remove four gearbox bolts and rotate gearbox 180 deg. to new position.

5.Install cuttershaft pulley, gearbox output pulley, idler arm pulley assembly, and belt on housing right side.

6.Attach new belt guard.

Wing Cuttershaft Rotation Reversal

1.Remove skid plate, front cover plate, and front shield.

2.Loosen powerband belt tensioner and remove powerband belt from gearbox sheave.

3.Remove four gearbox bolts and remove gearbox.

4.Change positions of gearbox vented plug and drain plug.

5.Rotate gearbox 180 deg. and remount.

6.Replace powerband belt and retension.

7.Reattach skid plate, front cover plate, and front shield.

FX17/FX21 02/11

Assembly Section 3-3

© 2011 Alamo Group Inc.

ASSEMBLY

Page 95
Image 95
Alamo FX21 Changing Rotation of Cuttershaft, Center Cuttershaft Rotation Reversal, Wing Cuttershaft Rotation Reversal