Multiva Optima T Series, Operation And Maintenance Manual, Page: 23 / 41

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6. MAINTENANCE PROGRAMME, INSPECTIONS
The following pages contain detailed instructions.
The table can be applied in practice depending on the size of the harrow and amount of field to be
cultivated. Service work should be carried out when either the hectares or working days are reached.
Table columns:
1 )
After the first 20 ha or after one work day
2 ) After the first 200 ha or after 5 work days
3 ) Every 500 ha or once in an operating period
1 )
<20 ha
2 )
<200 ha
3 )
500 ha
Bolt tightening torques X X
Tyre pressures X X
Wheel hub bearing clearance X X
Bogie bearing clearance X X
Hydraulics X
Side section locking X
Selector valve operation, Optima 500 – 700 X
Front support wheel bearing clearance, Optima 1000 – 1500 X
6.1. Bolt tightening torques
The fixing bolts of tines and blades can become loose during the first tilled hectares.
6.2. Tyre pressure
250/65-14.5" 3.0 bar
300/65-12" 3.6 bar
340/55-16" 4 bar
Bolt size, hardness Key mm Torque Nm
Tine blades M10-45, 8.8 15 / 17 50
S-tine clamps M12-100, 8.8 19 90
11x45 levelling board tines M12-90, 8.8 19 90
10x80 front levelling board tines M12-100, 10.9 19 120
Levelling board blades M12-35, 8.8 19 90
Wheel bolts M16 27 250
Towing eye, bolted M20-180, 10.9 30 400
Towing eye, plate M16-60, 8.8
M20-50, 8.8 24
30 210
400