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17
5/05/06
RTA10 & RTA15 Series Rotary Tillers 311-252M
Land Pride
Section 4 Maintenance and Lubrication
Table of Contents
Section 4 Maintenance 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.
Proper servicing 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.
After using 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. Remove 2 cap screws and fasteners from tine to be
replaced. Remove tine.
7. Install new tine on side of attaching flange as shown.
8. Replace 2 cap screws and fasteners and tighten nuts
to proper torque. See The Torque Values Chart in the
“Appendix” section on page 27.
!
WARNING
Worn tines may be very sharp!
10136
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
by either a two plate friction clutch or a shear bolt. Avoid
shear bolt failure by engaging the PTO slowly at low
engine rpm. See your Land Pride Dealer when replacing
shear bolts. Torque shear bolt nuts to 7-9 ft. lbs.
Friction clutches should be “run-in” prior to initial
operation and after long periods of inactivity. You may
have one of two types of friction clutches. Refer to Figure
4-2 and Figure 4-3 page 18 to determine which friction
clutch your Rotary Tiller has. Follow “Clutch Run-In”
instructions for your particular tiller.
To prevent driveline and gearbox damage, repeat
“Run-In” instructions at the beginning of each season
and when moisture and/or condensation seizes the inner
friction plates.
Clutch Run-In
Clutches With 8-Hex Head Socket Bolts
Refer to Figure 4-2 on page 18
1. Loosen counterclockwise all 8 hex head socket bolts
uniformly 6 full turns.
2. Cycle clutch on and off 5 or 6 times (15 seconds on
and 15 seconds off) with the engine operating at half
throttle. Disengage driveline, shut off tractor and
remove key. Wait for all components to stop before
dismounting from tractor.
3. Tighten hex head socket bolts fully back. Clutch is
ready for use
4. The clutch should be checked during the first hour of
cutting and periodically each week.
Clutches With 4-Tightening Nuts
Refer to Figure 4-3 on page 18 (View - A):
1. Using a pencil or other marker, scribe a line across the
exposed edges of the clutch plates and friction disks.
2. Tighten all 4 nuts uniformly until the spring load is low
enough that the clutch slips freely with the PTO
engaged.
3. Start the tractor and engage driveline drive for 2-3
seconds to permit slippage of the clutch surfaces.
Disengage the driveline, then re-engage a second
time for 2-3 seconds. Disengage driveline, shut off
tractor and remove key. Wait for all components to
stop before dismounting from tractor.
Shear Bolt and Lock Nut Part Numbers
Part No. Part Description
RTA10
802-267C M6 x 35 GR 8.8
803-154C M6 Lock Nut (Torque nut to 7-9 ft. lbs.)
RTA15
802-115C 5/16”-18 GR 5 bolt.
803-011C 5/16”-18 Lock Nut (Torque nut to 7-9 ft. lbs.)