MAINTENANCE
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 in Cuttershaft Bearing Replacement. 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. NOTE: Lube hole in bearing outer race must align with hole in housing. Outboard bearing cannot be used on inboard side. Set screws are not required for Inboard Bearing.
INBOARD (Drive Side) Bearing
CUTTER KNIVES
Cutter knives are attached to the cutter shaft with hardened knife pins and cotter pins. These pins are supplied with the knife kit. To replace existing knives, remove and discard used pins and install new knives using new pins. Knife pins must be installed in certain direction to locate cotter pins where knives will not reach them when flexing backward. After installing cotter pins, bend extended prong at a 45 degree angle.
FOR FORWARD ROTATION: On the right wing and center unit, all knife pins must be installed with their heads facing away form the cuttershaft pulley. On the left wing, the heads of the knife pins must face the cuttershaft pulley.
FOR REVERSE ROTATION: On the right wing and center unit, all knife pins must be installed with their heads facing toward the cuttershaft pulley. On the left wing, the heads of the knife pins must face away from the cuttershaft pulley.
FX17/FX21 02/11 | Maintenance Section |
© 2011 Alamo Group Inc.
