Land Pride 945551+, Operator'S Manual

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35
Section 5: Maintenance & Lubrication
9/6/17 RC2512 Series 2 S/N Rotary Cutters 330-725M
Table of Contents
5. Disengage power take-off, shut tractor engine off,
and remove switch key. Wait for all components to
come to a complete stop before dismounting from
tractor.
6. Inspect clutch to ensure that all scribed markings
made on the clutch plates and friction disc have
changed positions.
7. If any two marks are still in alignment, loosen all 8
spring retaining nuts one more revolution. Make sure
the nuts have full thread engagement and then
repeat steps 4 to 6 one more time.
8. Skip to step 10 if scribed marks are out of alignment.
9. The clutch must be disassembled into its separate
disks if, after 2 run-ins, a scribed mark is still in
alignment with another. See
“Clutch Disassembly,
Inspection & Assembly” on this page for detailed
instructions.
10. Clutch run-in was successful if all scribed marks
made on the clutch plates and friction disc have
changed positions. Tighten the 8 spring retainer nuts
to their original location to restore clutch pressure.
11. Allow clutch to cool to ambient temperature before
operating again. Clutch is now ready for use.
12. 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.
Clutch Disassembly, Inspection & Assembly
The clutch must be disassembled into its separate friction
disks if clutch run-in procedure indicated that one or more
scribed marks are still in alignment with each other. See
“Clutch Disassembly” instructions below.
Clutch Disassembly
Refer to Figure 5-4:
1. Retighten each of the 8 spring retainer nuts to their
original location.
2. Measure and record distance “A” of each spring. Keep
these measurements for reassembly.
Spring Length
Figure 5-4
IMPORTANT: After clutch run-in but before clutch
disassembly, spring retainer nuts must be returned
to their original position to measure spring length “A”.
Measured and record length “A”
for each spring before
disassembling the clutch.
Use 1 1/4" (31.8mm) for “A”
dimension if measurements were
not taken before disassembling
the clutch.
35965
Drivelines With Slip Clutches
!
WARNING
To prevent serious injury or death:
•
Always disengage power take-off, place tractor in park or
set park brake, shut tractor engine off, remove switch key,
and wait for all moving parts to stop 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.
Friction clutches must be capable of slippage during
operation to protect gearboxes, drivelines, and other
drive train parts. Friction clutches should be “run-in” prior
to initial operation and after periods of inactivity to
remove any oxidation from the friction surfaces. Repeat
“run-in” at the beginning of each season and when
moisture seizes the inner friction plates.
Clutch Run-In
Refer to Figure 5-3:
1. Using a pencil or other marker, scribe a line across the
exposed edges of the clutch plates and friction disks.
Clutch Run-In
Figure 5-3
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 .
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 slippage of friction disks.
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