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10/13/08 RTA10 & RTA15 Series Rotary Tillers 311-252M
Land Pride
Section 4 Maintenance and Lubrication
Table of Contents
Section 4Maintenance and Lubrication
Maintenance
!CAUTION
For safety reasons, each maintenance operation must be
performed with the tractor’s PTO disengaged, the Tiller
lowered completely to the ground or on safely supported
blocking, tractor engine shut off and ignition key removed.
Properservicing and adjustment is the key to the long life
of any farm implement. With careful and systematic
inspection, you can avoid costly maintenance, time and
repair.
Afterusing your tiller for several hours, check all bolts to
be sure they are tight.
Replace any worn, damaged or illegible safety labels by
obtaining new labels form your Land Pride Dealer.
Tine Replacement
Refer to Figure 4-1:
TIne Replacement
Figure 4-1
6. Remove2 cap screws and fasteners from tine to be
replaced. Removetine.
7. Installnew tine on side of attaching flange as shown.
8. Replace2 cap screws and fasteners and tighten nuts
toproper torque. See The Torque ValuesChart in the
“Appendix” section on page 27.
!WARNING
Worn tines may be very sharp!
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IMPORTANT: Always install tine with cutting edge
facing direction of rotor shaft rotation. When
ordering replacement tines, be sure to order both
right and left hand tines.
IMPORTANT: Replace tines with genuine Land
Pride tines only.
Driveline Protection
Tiller drive components are protected from shock loads
with a friction clutch or a shear bolt. The clutch must be
capable of slippage during operation to protect the
gearbox, driveline and other drive train parts. Shear bolt
protection is discussed on page 19.
Friction clutches should be “run-in” prior to initial
operation and after long periods of inactivity to remove
any oxidation that may have accumulated on the friction
surfaces.Repeat “run-in” instructions at the beginning of
each season and when moisture and/or condensation
seizes the inner friction plates.
Refer to Figure 4-2 below and Figure 4-3 on page 19 to
determinewhich friction clutch your tiller has. Follow run-
In, disassembly and assembly instructions for your
specific clutch.
Clutches With 4 Adjusting Nuts
Clutch Run-In
Refer to Figure 4-2 (View - A):
1. Using a pencil or other marker, scribe a line across the
exposededges of the clutch plates and friction disks.
2. Tighten all 4 nuts uniformly until spring load is low
enough that the clutch slips freely with PTO
engaged.
Clutches With 4 Adjusting Nuts
Figure 4-2
3. Start tractor and engage PTO for2-3 seconds to
permit slippage of clutch surfaces. Disengage PTO,
then re-engage a second time for2-3 seconds.
Disengage PTO,shut off tractor and remove key.
Waitfor all components to stop before dismounting
from tractor.
4. Inspect clutch and ensure that the scribed markings
made on the clutch plates havechanged position.
Slippage has not occurred if any two marks on the
friction disk and plate are still aligned. A clutch that
has not slipped must be disassembledto separate
the friction disk plates. See “Clutch Disassembly &
Assembly” on page 18.
Refer to Figure 4-2 (View - B):
5. Turnall 4 nuts fully back if no two marks on the
frictiondisk and plate are still aligned. Clutch is ready
foruse.
6. The clutch should be checkeddur ing first hour of
cuttingand periodically each week. An additional set
of scribe marks can be added to check for slippage.
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