MTZ 1220.3 - Page 39

MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D19
Rear PTO engagement
In order to engage PTO press key (5) to
the left up to the stop, then press key (6)
and release it, then indicator lamp (7)
(yellow) will light up indicating PTO shaft
engagement.
In order to disengage PTO shaft press
key (5) to the right, indicator lamp (7) will
go out, indicating PTO shaft disengage-
ment.
ATTENTION
!
Disable PTO shaft drive if it is not
used.
Before starting diesel engine ensure,
that key (5) and button (6) of PTO
shaft switching on and off are in the
position “PTO off” (indicator lamp (7)
is off).
Disable drive while deenergizing con-
trol system (failure of generator, belt
breakage and etc.) in order to exclude
premature failure of PTO reducing
gear elements.
Independent and synchronous PTO
drives
The lever (8) has three positions:
• “Independent drive is engaged” — ex-
treme right position;
• “Synchronous drive is engaged — ex-
treme left position;
• “Disengaged” — middle position.
Engage the synchronous PTO drive only
at low gears on minimum engine idle
speed doing the following:
• Start the engine and set the minimum
idle speed;
• Press home the clutch pedal and en-
gage I or II gear;
• Release the clutch pedal slowly and
simultaneously turn the lever (8) in the
extreme left position.
Important! Use the PTO synchronous
drive only at low gears at tractor mo-
tion speed not higher than 8 km/h.
Otherwise tractor power train may get
seriously damaged.
Speed switch of independent PTO
drive
Independent drive lever (1) has two posi-
tions: