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MAINTENANCE
HYDRO 88 & 96 03/09 Maintenance Section 5-9
©2009 Alamo Group Inc.
MAINTENANCE
Cuttershaft Replacement
NOTE: It is recommended that cuttershaft bearing and housing assemblies be replaced when replacing
cuttershaft.
1. Place unit on the ground or securely support at a convenient height.
2. Remove cuttershaft bearing and housing assemblies as outlined above. After removing both assemblies,
the cuttershaft can be removed and a new one installed. It may be necessary to remove two sets of knives
nearest the drive end of cuttershaft.
3. Install new bearing and housing assemblies.
Changing to Forward or Reverse Rotation
To change direction of cuttershaft rotation, three left hand parts are required. A belt guard, an outboard bearing
plate and a idler pulley arm. (Consult parts list for these part numbers). Remove the cuttershaft and turn 180°.
Remove the gearbox cuttershaft drive pulley and outboard bearing plate, (using the proper bearing plate)
mount the plate to opposite side mower housing. Remove the four bolts that mount the gearbox and rotate
gearbox 180° to new position. Install cuttershaft pulley, gearbox output pulley, idler arm pulley assembly, and
belt. REPLACE EXISTING BELT GUARD WITH PROPER GUARD.
Replacing Cutter Unit Knives
The cutter knives are attached to the cutter shaft with hardened pin and cotter pins. These pins are supplied
with the knife kit. To remove existing knives, remove and discard these pins and install new knives using new
pins. See Figure ASM-FL-0047