Zetor 3321 SUPER, Operator'S Manual

Page: 154 / 233

153
ADJUSTMENT
Almost all these following works require
certain experience and service and
diagnostic equipment. That
’
s why we
recommend to do this work at
specialized or authorized workshop.
Page
Drive belt tension inspection ................................................................................... 154
Cylinder heads retorque .......................................................................................... 154
Valve clearance adjustment at engines Z 5202, Z 6202, Z 7202, Z 7702, Z 7302 . 154
Adjustment of injectors ............................................................................................ 155
Attention: ................................................................................................................. 155
Brake pedal free travel adjustment ......................................................................... 155
Tractor brake system bleeding ................................................................................ 156
1. Bleeding of trailer air brake system ..................................................................... 156
2. Bleeding of hydraulic trailer brake system .......................................................... 157
3. Service brake system bleeding ........................................................................... 158
4. Bleeding of front driving axle brake system ........................................................ 158
Bleeding process..................................................................................................... 159
Service and parking brake inspection and adjustment ............................................ 160
Service brake adjustment........................................................................................ 161
Parking brake adjustment ....................................................................................... 161
Clutch pedal free travel adjustment ......................................................................... 161
Check of clutch pedal position adjustment .............................................................. 162
Clutch hydraulic circuit bleeding .............................................................................. 162
Engine clutch adjustment ........................................................................................ 163
Free play adjustment of front wheel tapered roller bearings at tractor Z 3321, Z 4321,
Z 5321, Z 6321, Z 7321........................................................................................... 163
Pick up hitch adjustment ......................................................................................... 164
Adjustment of pick up hitch releasing push pull cable ............................................ 164
Adjustment of hydraulic inner circuit control lever force .......................................... 164
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