Unifarm Machinery Corporation
PO Box 38, Wilson, NC, U.S.A.
page 16
MAINTENANCE
Maintenance is crucial for the working life and efficiency of any agricultural equipment. If the
equipment is properly maintained and operated, a long working life and operator safety are assured.
The maintenance intervals indicated in this booklet are provided as a mere reference and are related
to normal working conditions; changes may occur depending on the type of activities, environmental
dust, seasonal factors, etc.
- Before injecting lubricating grease into the grease
fittings, clean the fittings to prevent mud, dust, or any
other foreign matter from contaminating the grease and
reducing the lubrication effect.
- When adding or changing the oil, use the same type of oil
to prevent mixing oils with different features.
- All maintenance activities must be carried out with the
tiller resting horizontally on the ground, with the engine
off and not overheated.
- After using the equipment for a few hours, make sure
that all the bolts (especially tine bolts) are tightened;
regularly check all the machine guards.
FIRST CHECK
- After 50 working hours, change the oil in the gearbox and make sure that all the screws and
bolts are tightened.
EVERY 8 WORKING HOURS
- For the T10 tillers grease the rotor support through the grease fitting A (picture 11).
- Grease the PTO shaft crosses.
EVERY 50 WORKING HOURS
- Check the oil level in the case/bevel gear pair by removing gearbox's upper oil plug (A - picture
14); oil level should be about at half of gearbox. If the model is equipped with dip stick oil plug
(B - picture 12), make sure that the oil level is contained between the 2 nicks of MIN & MAX.
- Check the oil level in the side transmission (A - picture 13) and in the T15, T20, T25, T30
tillers check the oil level in the rotor support (A - picture 14). If needed add SAE EP 80W90 oil.
- Make sure that all the screws and bolts, especially on the blades, are tightened.
EVERY 500 WORKING HOURS
- Change the oil of the case/bevel gear pair, side transmission and rotor support (T15, T20, T25,
T30); use SAE EP 80W90 oil. Contact the closest Phoenix dealer for this maintenance activity.