Section 4: Maintenance & Lubrication
1/19/21
RTR1574 S/N+ Rotary Tiller 311-431M
24
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.
•
Allow only persons to perform maintenance on this
implement who have been properly trained in its safe
•
Always shut tractor down using “Tractor Shutdown
Procedure” provided in this manual before servicing,
adjusting, cleaning, or maintaining this implement.
Driveline Protection
WARNING
!
To avoid serious injury or death:
Always follow “Tractor Shutdown Procedure” provided in
this manual before dismounting the tractor.
Tiller drive components are protected from shock loads
with either a two plate friction clutch or a shear bolt.
Shear bolt protection is discussed on page 24.
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.
Shear Bolt Protection
Avoid shear bolt breakage by making sure the 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.
IMPORTANT:
Replace shear bolts with genuine
Shear Bolt and Locknut Part Numbers
Part No.
Part Description
6690845
M8 x 45 Bolt with nut (Kit)
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
exposed edges of the clutch plates and friction disks.
2. Tighten all 4 nuts uniformly until spring load is low
enough to slip the clutch freely with power take-off
engaged.
Clutches With 4 Adjusting Nuts
Figure 4-2
3. Start tractor and engage power take-off for 2-3
seconds to permit slippage of clutch surfaces.
Disengage power take-off, then re-engage a second
time for 2-3 seconds. Disengage power take-off, shut
off tractor, and remove key. Wait for all components to
stop before dismounting from tractor.
4. Inspect clutch and ensure that the scribed markings
made on the clutch plates have changed 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 disassembled to separate
Refer to Figure 4-2 (View - B):
5. Turn all 4 nuts fully back if no two marks on the
friction disk and plate are still aligned. Clutch is ready
for use.
6. The clutch should be checked during first hour of
tilling and periodically each week. An additional set
of scribe marks can be added to check for slippage.
Clutch Disassembly & Assembly
If clutch run-in procedure indicates that one or more of the
friction disks did not slip, then the clutch must be
disassembled to separate the friction disks.
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