Land Pride RCR1272 Manuale Utente
21
Section 5: Maintenance & Lubrication
12/15/15
RCR1248, RCR1260 and RCR1272 Rotary Cutter 326-047M
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.
of any implement. With careful inspection and routine
maintenance, you can avoid costly downtime and repair.
Check all bolts after using the unit for several hours to be
sure they are tight. Replace any worn, damaged, or
illegible safety labels by obtaining new labels from your
Land Pride dealer.
sure they are tight. Replace any worn, damaged, or
illegible safety labels by obtaining new labels from your
Land Pride dealer.
!
CAUTION
!
CAUTION
!
CAUTION
Slip-Clutch Protected Driveline
!
WARNING
Cutter drive components are protected from shock loads
by either a two plate friction clutch or a shear bolt.
by either a two plate friction clutch or a shear bolt.
The shearbolt is designed to shear off when the blade
impacts objects that the cutter is not designed to cut
through. Avoid shear bolt failure by engaging the PTO
slowly at low engine rpm. See your Land Pride dealer
when replacing shear bolts. Using higher grade shear
bolt may result in driveline, gearbox, and/or tractor PTO
damage.
impacts objects that the cutter is not designed to cut
through. Avoid shear bolt failure by engaging the PTO
slowly at low engine rpm. See your Land Pride dealer
when replacing shear bolts. Using higher grade shear
bolt may result in driveline, gearbox, and/or tractor PTO
damage.
Shear Bolt, Nut & Jam Nut Part Numbers
Part No.
Part Description
802-264C
HHCS 1/2-13X3 1/2 GR2
803-020C
NUT HEX 1/2-13 PLT
803-036C
NUT HEX JAM 1/2-13 PLT
Clutch Run-In
The clutch must be capable of slippage during operation
to protect gearbox, driveline, and other drive train parts.
Friction clutches should be “run-in” prior to initial
operation and after long periods of inactivity. To prevent
driveline and gearbox damage, repeat clutch “run-In” at
the beginning of each season and when moisture and/or
condensation seizes the inner friction plates.
to protect gearbox, driveline, and other drive train parts.
Friction clutches should be “run-in” prior to initial
operation and after long periods of inactivity. To prevent
driveline and gearbox damage, repeat clutch “run-In” at
the beginning of each season and when moisture and/or
condensation seizes the inner friction plates.
Refer to Figure 5-31 on page 21:
1.
Using a pencil or other marker scribe a line across the
exposed edges of the clutch plates and friction disks.
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 the
hex end of the retainer bolt in order to count the exact
number of revolutions.
exactly 2 revolutions. It will be necessary to hold the
hex end of the retainer bolt in order to count the exact
number of revolutions.
3.
Start the tractor and engage the 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.
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.
4.
Inspect the 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” to disassemble clutch.
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” to disassemble clutch.
5.
Tighten each of the 8 spring retainer nuts on the
clutch housing exactly 2 revolutions to restore the
clutch to the original setting pressure.
clutch housing exactly 2 revolutions to restore the
clutch to the original setting pressure.
Clutch Run-In
Figure 5-31
6.
The clutch should be checked during the first hour of
operation and periodically each week. An additional
set of scribe marks can be added to check for
slippage. See “Clutch Assembly” to adjust for
proper spring length.
operation and periodically each week. An additional
set of scribe marks can be added to check for
slippage. See “Clutch Assembly” to adjust for
proper spring length.
30560
Section 5: Maintenance & Lubrication