Zetor 8621 Forterra turbo Operator's Manual page 225

Note :
∗ After first implementation of new tractor or at after general repair.
1- According to dustiness and uncleanness of intake air (straw etc.) every 50 to 200 hours
2- Clean daily when working with front attached machines if necessary in shorter periods
3- Max. period - 2 years.
4- Change hoses at least after four years from time of their production.
New hoses must not be older than two years from time of their production mentioned on hose surface
5- Max. period - five years from time of tractor manufacturing.
6- Max. period - five years from time of air-tank manufacturing or after accident.
7- This covers the adjustment of front asymmetric headlight and adjustment of brake indicator light switches (max. play between
switch and foot brake pedal stop must be 0,5 to 1,0 mm).
8- In summer season - every 100 hours.
9- In case of leakage remove the failed piston rod sealing, flush out the shock absorber by petrol and fill it up with 70 cm
shock absorber oil.
PLANNED TECHNICAL MAINTENANCE
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