Spearhead MULTICUT
820
19
Servicing & Maintenance
Slip Clutch Settings
We recommend that friction clutches be stored in a dry place with the spring pressure
released. In use, the compression of the spring has to be adjusted periodically to
compensate for lining wear and to maintain the setting at the original value.
Check the condition of the friction discs before use and following periods of storage.
Release the tension from the spring, turn the clutch while holding the gearbox shaft
stationary. Adjust the spring compression to the original setting (fig. 1).
Following seasonal use, unload the spring tension and stone clutch assembly in a dry
place. Check condition of friction linings and reset spring compression to original
height before use.
Should the assembly overheat due to frequent or prolonged clutch slipping, dismantle
for inspection. The original thickness of the lining is 3.2mm, replace them when worn
to 2.5mm. Clean up all contact surfaces and replace any damaged components
before assembly.
BONDIOLI Manufacture (Belleville Spring)
Fig. No.
Position
Part No.
Setting
‘h’
Machine
2
Centre
5770043
18.5 mm (fig 1)
820
2
Inner wing
5770213
19 mm (fig 1)
820
2
Outer wing
5770214
18 mm (fig 1)
820
Warning
The slip clutch is there to protect the gearbox. If the
blades strike a large obstacle they may get damaged or
break - avoid these conditions.