Belarus 1221.2, Operator'S Manual

Page: 264 / 295

BELARUS-1221.2/1221V.2/1221.3 Scheduled maintenance
263
Operation 30. Draft and position control
signal mixer (if installed)
Lift the rear hitch mechanism to its highest
position. The lever (1) must rotate in the
zone between the marks I and III.
If the lever travel does not match the above
requirements, please contact a qualified
technician to adjust tension of the signal
mixer control cable.
Operation 31. Clean the filter of the air
pressure regulator in the pneumatic
system
To clean the filter element:
• Remove the bolts (1) and cover (2).
• Take out the filter element, wash it in
detergent solution and blow with
compressed air.
• Assemble the strainer in the reverse
order.
Operation 32. Check tightness of
pneumatic system lines
• Bring the air pressure in the pneumatic
system to 6.0 to 6.5 kgf/cm² (by readings
of the air pressure indicator on the
dashboard) and stop the engine.
• Check by the pointer that the
pressure drop for 30 minutes did not
exceed 2 kgf/cm². Otherwise, find the
location of air leak and fix the fault.