FHM WC8-PRO, Operations & Parts Manual

Page: 6 / 27

Farmer-Helper WC PRO Chipper 6 Revision 9/22/16
3. PTO DRIVESHAFT SAFETY TIPS
Your chipper is shipped with a PTO driveshaft. When using the PTO
driveshaft, keep your tractor adjusted as close to the chipper as possible.
Always ensure that the PTO shaft is no more than 15 degrees of
horizontal when operating.
-The following steps are recommended for safe operation of the
driveshaft under field conditions.
-Test hitch angle to prevent the driveshaft from:
Extending beyond the recommended maximum length.
Bottoming out
Reaching a position that allows joints to lock
Exceeding the maximum allowable angle for constant velocity
(CV) joints.
-Specify and test telescoping members to allow the lowest possible thrust
loads, considering the expected working conditions.
-Specify and test torque limiters to control excessive shock.
-Where necessary, specify and test overrun clutches to prevent inertial
loads from overpowering the tractor.
-Provide a means to support the drive shaft when it is disconnected from
the tractor, to prevent damage during storage or transportation.
-Provided drive shaft is of Shear design using a Grade 4 bolt, if replacing
this bolt do not use higher grade as this may cause damage to the PTO
driveshaft, Implement, or your tractor.
-On drive shafts with torque-limiting or overrun devices, be sure to
connect the device on the end of the drive shaft nearest the chipper.
-Provide a proper clearance zone for the operation of the driveshaft, to
avoid damage to the shielding components.
-It is not recommended to use PTO adaptors which may defeat the
purpose of the tractor’s master shield and/or adversely affect the
performance of the driveshaft.
4. PROTECTIVE GUARDS AND SHIELDS
Do not allow the chipper to be operated without the chip deflector
properly in place.