FTH-Series Rotary Tillers
28
Exposure to the elements of tiller and driveshaft, or a long period of inactivity, generally results in
oxidation of some clutch components, and creates "sticking" effect on the clutch.
Consequently, the torque required to the slippage of the clutch increases considerable respect to the
value set at factory, and this may be cause of driveshaft breakage during operation, or damage to
the tractor or implement.
To avoid it, before re-using the tiller, operator must perform a short "run-in" of the clutch, as follows:
take note of the height of the compressed springs;
loosen the bolts that compress the springs;
connect the tiller to the tractor (see section Connecting to the tractor) ;
connect the driveshaft (see section Driveline installation) ;
start the tractor and engage PTO for few seconds, in order to cause slippage and separation of
the parts "stuck" of the clutch;
turn off the tractor, remove key and wait for all components are stopped before dismounting
from tractor;
retighten the bolts restoring the original springs position on the driveshaft.
NOTE
For replacement of the driveshaft service parts (e.g. friction discs), refer to the user manual of the
driveshaft Manufacturer.
7.
STORAGE
Before leaving the tiller unused for a long time, it's necessary to perform following tasks to preserve
the appearance and functionality of the machine, and to make easier the restart at later use:
park the tiller on a flat surface, in a place dry and protected from exposition to the elements,
possibly with storage temperature between 0 and 50 °C (see section Stopping and disconnection);
thoroughly clean the machine, removing from the rotor all residues due to tillage, in order to
avoid damage from grass and stagnant water;
inspect carefully the machine, checking for worn and/or damaged parts. Perform immediately all
repairs and/or replacements needed, in order to make the machine ready for restarting;
in case of abrasion of painted surfaces, provide restoring the surface protection through touch-up
paint to prevent rust;
make sure the safety decals are in their original positions, intact and legible. When required,
replace the decals immediately;
lubricate properly all grease points, and restore the oil levels as indicated in the Maintenance
section. Use protective oil to coat the exposed mechanical components and to protect them
against rust.
If the tiller driveshaft is equipped with a friction clutch, it is suggested to take note of the height of
the compressed springs and loosen the bolts that compress the springs, to prevent the discs from
"sticking" effect due to moisture, that may cause the clutch failure at restart of the activities (see
also Driveshaft maintenance).
Before restart the operations, restore the original height of the springs.
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