Modern AG 15' Predator - Omni - Manual (Page 35)

15’ Predatorrr - 35
operation section
constant velocity (cv) driveline
For cutters equipped with a Constant Velocity (CV) driveline, the maximum turning angle between
the tractor and cutter must be determined to ensure the joint angle does not over-extend which
can cause CV joint damage. Constant Velocity joints enable the driveline to operate smoothly with
no vibrations and clattering at angles up to 70°. angles greater than 80° can result in mechanical
damage to the CV joint and cutter driveline.
the Constant Velocity joint must be lubricated every 8 hours of operation as specified in the
maintenance Section. Failure to properly lubricate the joint will result in accelerated wear and joint
component failure.
cv driveline Maximum angle check procedure
• With the cutter attached to the tractor and the driveline disconnected from the tractor PtO
stub make a hard left turn until there is approximately a 1” clearance between the left rear
tractor tire and cutter frame or tongue.
• Stop and completely shut down the tractor. Place the tractor in Park and apply the Parking
Brake before dismounting.
• Check the CV joint at this maximum turning radius by holding the driveline yoke above the
PtO shaft andthen angle the CV joint to its maximum angle. a minimum difference of 10
degrees between the center line of the yoke and the PtO shaft must be maintained to en
sure the joint will not be over angled. If the joint cannot be angled at least 10°, there is a po
tential problem of over-angling the joint while making sharp turns.
• Solutions: to ensure the joint is not damaged, check the following:
Check the drawbar length to ensure that it is at the proper length for the RPm speed of the
cutter.
Move the tractor rear tires wider apart to limit the tractor turning radius.
Position the cutter at multiple angles and perform the above procedure. Determine the sharpest
turning radius that maintains a safe operating angle and note this position to the operator.
OPERaTION
FL15M 02/07 Operation Section 4-18
© 2007 Alamo Group Inc.
OPERa
TION
8.2 Constant Velocity (CV) driveline
For mowers equipped with a Constant Velocity (CV) driveline, the maximum turning angle between the tractor
and mower must be determined to ensure the joint angle does not over-extend which can cause CV joint
damage. Constant Velocity joints enable the driveline to operate smoothly with no vibrations and clattering at
angles up to 70°. Angles greater than 80° can result in mechanical damage to the CV joint and mower
driveline.
The Constant Velocity joint must be lubricated every 8 hours of operation as specified in the Maintenance
Section. Failure to properly lubricate the joint will result in accelerated wear and joint component failure.
CV driveline Maximum angle Check Procedure
•
With the mower attached to the tractor and the driveline disconnected from the tractor PTO stub make
a hard left turn until there is approximately a 1" clearance between the left rear tractor tire and mower
frame or tongue.
• Stop and completely shut down the tractor. Place the tractor in Park and apply the Parking Brake before
dismounting.
• Check the CV joint at this maximum turning radius by holding the driveline yoke above the PTO shaft and
then angle the CV joint to its maximum angle. A minimum difference of 10 degrees between the center
line of the yoke and the PTO shaft must be maintained to ensure the joint will not be over angled. If the
joint cannot be angled at least 10°, there is a potential problem of over-angling the joint while making
sharp turns.
• Solutions: To ensure the joint is not damaged, check the following:
Check the drawbar length to ensure that it is at the proper length for the RPM speed of the mower.
Move the tractor rear tires wider apart to limit the tractor turning radius.
Position the mower at multiple angles and perform the above procedure. Determine the sharpest turning
radius that maintains a safe operating angle and note this position to the operator. OPS-R-0006