Section 4: Maintenance & Lubrication
RTA2072 & RTR2072 Rotary Tillers 311-328M
9/12/22
24
Driveline Maintenance
DANGER
!
To prevent serious injury or death:
•
Tractor power take-off shaft shield, driveline shields, and
gearbox shaft shields must be installed and in good working
condition to avoid driveline entanglement and projectiles
•
Always disconnect driveline from the tractor before
servicing the drivetrain and components powered by the
drivetrain. A person can become entangled in the drivetrain
if the tractor is started and the power take-off is engaged.
WARNING
!
To prevent serious injury or death:
•
Always follow “Tractor Shutdown Procedure” provided in
this manual before dismounting the tractor.
•
Do not operate a broken or bent driveline. Such a driveline
will break apart while rotating at high speeds. Always
remove the implement from use until the damaged driveline
Before each use, check that the driveline is securely
fastened and that all driveline shields are in place,
undamaged and in working order. Replace driveline and
shields as needed. Order only genuine Land Pride parts
from your local Land Pride dealer.
The tiller drive components are protected from shock
loads with either a friction clutch or a shear bolt. Refer to
Figure 1-2 and Figure 1-3 on page 12 to determine which
driveline protection is included with the tiller. Refer to
instructions for
“Shear Bolt Protected Driveline”
or
“Slip Clutch Protected Driveline”
RTA20 & RTR20 Series Shear Bolt and Locknut
Figure 4-2
Shear Bolt Protected Driveline
Refer to Figure 4-2:
Avoid shear bolt breakage by making sure tiller is out of
the ground before engaging power take-off. Engage
power take-off slowly at low engine rpm. Increase engine
speed to 540 rpm only after tines are rotating.
See table in Figure 4-2 for correct shear bolt and nut.
Torque shear bolt nuts to 7-9 ft-lbs (10-12 Nm).
Slip Clutch Run-In
Figure 4-3
Slip Clutch Protected Driveline
Refer to Figure 4-3:
The slip clutch protects the drivetrain from shock loads.
Disks inside the clutch must be capable of slippage
during operation. To verify this, the clutch must go
through a
“Clutch Run-in”
operation.
Implement End
Tractor End
Shear Bolt & Locknut
22233
Part No.
Part Description
165.000.511 M10 x 55 class 1.8.8 Bolt & M10 Nut
(Torque nut to 7-9 ft-lbs (10-12 Nm)
IMPORTANT:
Replace shear bolts with genuine
24501