Section 4: Maintenance & Lubrication
RTA2064, RTA2072, RTR2064 & RTR2072 Rotary Tillers 311-328M
12/19/18
20
Section 4:
Maintenance & Lubrication
Maintenance
Proper servicing and adjustments are key to the long life
of any implement. With careful inspection and routine
maintenance, you can avoid costly downtime and repair.
Check all hardware after several hours of operation and
regularly thereafter to ensure they are tight and secured.
Replace worn, damaged, or illegible safety labels by
obtaining new labels from your Land Pride dealer.
WARNING
!
To avoid serious injury or death:
•
Do not alter implement or replace parts on the implement
with other brands. Other brands may not fit properly or
meet OEM (Original Equipment Manufacturer)
specifications. They can weaken the integrity and impair the
safety, function, performance, and life of the implement.
Replace parts only with genuine OEM parts.
•
Before any adjustments or maintenance is performed, lower
implement to ground, shut engine off, and remove switch
key. Do not attempt to make adjustments or perform
maintenance with implement or power machine running.
Shearbolt Protection
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 below for correct shear bolt and nut part
numbers. Torque shear bolt nuts to 7-9 ft- lbs.
Tine Replacement
Refer to Figure 4-1:
WARNING
!
To avoid serious injury or death:
Used tines can be very sharp. Always wear gloves when
handling tines to protect against cuts.
IMPORTANT:
Replace shear bolts with genuine
Shear Bolt and Locknut Part Numbers
Part No.
Part Description
RTA20 & RTR20 (Eurocardan Driveline)
6691050
M10 x 50 Bolt & M10 Nut
(Torque nut to 7-9 ft. lbs.)
RTA20 & RTR20 (Walterscheid Driveline)
802-115C
5/16"-18 x 2" GR 5 bolt.
803-011C
5/16"-18 Locknut (Torque nut to 7-9 ft. lbs.)
IMPORTANT:
Remove and install one tine at a time
to ensure they are oriented correctly when installed.
1.
Remove 2 bolts and nuts from tine to be replaced.
Remove tine.
2. Install new tine on side of attaching flange.
3. Replace 2 bolts and nuts and tighten nuts to proper
torque. See the
Torque Values Chart
in the
“Appendix”
Tine Replacement
Figure 4-1
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 20.
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 on page 21 and Figure 4-4 on page 22
to determine which friction clutch your Rotary Tiller has.
Follow run-In, disassembly, and assembly instructions for
your specific clutch.
IMPORTANT:
When ordering tines, be sure to order
20551
Dir
ection of
Tra
ve
l
RTA20
Rotation
RTR20
Rotation