Land Pride RC5020 Series, Operator'S Manual

Page: 52 / 70

Section 5: Maintenance & Lubrication
Table of Contents
RC(M)5020 Series 2 (S/N ) Rotary Cutter 334-437M 11/13/18
48
Drivelines With Slip Clutches
WARNING
!
To avoid serious injury or death:
•
Always shut tractor down using “Tractor Shutdown
Procedure” provided in this manual before dismounting
tractor.
• A slip clutch that has been in use or has slipped for as little
as only two or three seconds during run-in may be too hot
to touch. Allow a hot clutch to cool before working on it.
Drive components are protected from shock loads by a
friction slip clutch. The clutch must be capable of
slippage during operation.
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 inner friction plates.
Refer to Figure 5-14:
1. Using a pencil or other marker, scribe a line across the
exposed edges of the clutch plates and friction disks.
2. Carefully loosen each of the 8 spring retainer nuts by
exactly 2 revolutions. It will be necessary to hold hex
end of retainer bolt in order to
count the exact
number of revolutions .
Clutch Run-In
Figure 5-14
IMPORTANT: Prior to initial operation and after 10
days of inactivity, slip friction disks to remove
oxidation and moisture. Moisture allows disks to slip
easily. Oxidation can prevent disk from slipping
causing driveline damage. This damage is NOT
covered under the warranty.
13693
3. Make sure the area is clear of all bystanders and
machine is safe to operate.
4. Start tractor and engage power take-off drive for 2-3
seconds to permit clutch surfaces to slip. Disengage
and re-engage power take-off for 2-3 seconds.
Disengage power take-off, shut tractor off and
remove key. Wait for all components to stop before
dismounting from tractor.
5. 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
the friction disk plates. See
“Clutch Disassembly,
Inspection & Assembly” below.
6. Tighten each of the 8 spring retainer nuts on the
clutch housing exactly 2 revolutions to restore clutch
to original setting pressure.
7. Allow clutch to cool to ambient temperature before
operating again. Clutch is now ready for use.
8. The clutch should be checked during the first hour of
cutting and periodically each week. An additional set
of scribe marks can be added to check for slippage.
See Figure 5-16 to adjust spring length.
Clutch Disassembly, Inspection & Assembly
If clutch run-in procedure above indicated that one or more
friction disks did not slip, then the clutch must be
disassembled to separate the friction disks.
Disassembly
Refer to Figure 5-15:
Disassembly of clutch is simply a matter of first removing
spring retainer nuts (#1), springs (#2), and bolts (#3) from
the assembly. Each friction disk (#4) must then be
separated from the metal surface adjacent to it.
Clutch Disassembly
Figure 5-15
IMPORTANT: Not all clutches are assembled the
same with the same number of components. Be sure
to keep track of order and orientation of your clutch
components during disassembly.
14714
IMPORTANT: Keep
track of order and orientation of
your clutch components during disassembly