MTZ 1220.1, Руководство оператора

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MTZ 1220.1/1220.3 Section М . Possible failures
М 12
Defect, external manifestation Way of elimination
and bottom cover, outlet holes in cover are
littered. gap availability.
There is no air supply in connecting hose
through air takeoff valve
Rod of air takeoff valve in regulator of pres-
sure is insufficiently sunk. Screw a nut on the union of connecting
pipe.
Regulator of pressure switched compressor
to idle. Reduce pressure in balloon below 0,65 MP
(6,5 kilogram-force /sm
2
).
Displacement of rubber ring on air takeoff
valve. Turn off cover, check position and condition
of rubber ring.
Brakes of trailer are released slowly
Adjustment of brake valve and its drive is
disturbed. Adjust. (see section “Adjustments”).
Work of trailer brake system is disturbed. Adjust.
Brakes of trailer operate inefficiently
Brake valve does not provide pressure
0,77…0,80 MP (7,7…8,0 kilogram-force
/sm
2
) in main pipe.
Adjust brake valve and its drive (see section
“Adjustments”).
Brake valve does not provide pressure drop
to zero in connecting pipe. Adjust brake valve and its drive (see section
“Adjustments”).
Pressure in connecting pipe slowly drops to
zero.
Check condition of connecting pipe, atmos-
pheric valve hole, brake pedal stroke.
Work of trailer brake system of is disturbed. Adjust.