Land Pride RCM4015 Manuale Utente

10/21/15

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.

Refer to Figure 5-3 to determine which friction clutch your 
cutter has. Follow “run-in” instructions for your specific 
clutch type. Refer to this page for “Type A Clutches” and 
page 42 for “Type B Clutches”.

IMPORTANT: Prior to initial operation and after long 
periods 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!

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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.

3.

Make sure the area is clear of all bystanders and 
machine is safe to operate. 

4.

Start tractor and engage PTO drive for 2-3 seconds 
to permit slippage of the clutch surfaces. Disengage 
PTO, then re-engage a second time for 2-3 seconds. 
Disengage PTO, shut off tractor, 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” on page 41 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 5-6 on page 41 to adjust spring length.

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