Iran Tractor ITM 470, Operators Instruction Book

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3
Tractor operation 42
3. Release the clutch pedal slowly, while
maintaining foot pressure on the differ-
ential lock pedal.
4. To disengage the differential lock re-
lease the pedal. If the lock fails to
disengage automatically, depress the
clutch pedal.
IMPORTANT
DO NOT attempt to engage the differ-
ential lock with one wheel stopped and
the other wheel spinning fast. DO NOT
attempt to turn with the differential lock
engaged.
Power Take-Off (PTO)
WARNING
Power take—off shafts and power
take—off driven implements can be ex-
tremely dangerous, observe the following
important points:
• DO NOT operate the tractor without
a PTO cap fitted. It protects people
from injury as well as the splines
from damage.
• Before attaching, adjusting or
working on PTO driven implements,
disengage the PTO, stop the engine
and remove the key. DO NOT work
under raised equipment.
• Before engaging a PTO driven im -
plement and after fitting, ALWAYS
carefully raise and lower the imple-
ment using Position Control, and
check clearances, PTO shaft slide
range and articulation.
• Ensure that all PTO driven imple -
ments have the correct guards, are
in good condition and conform to
current standards.
Fig. 11:
2
1
In this tractor the Power Take-Off
(PTO) is, Live Drive from the engine using
a dual clutch and mechanical engagement.
The PTO shaft (1 Fig.11) at the rear of
the tractor has six splines and a diameter of
35 mm (1 3/8 in) with an annular groove for
positive fixing of implement couplings. A
removable cap (2 ) protects the splines and
the operator when the shaft is not in use.
Live Power Take-Off (Fig. 12)
The live PTO is engaged by using the
dual clutch. Depressing the clutch pedal
through the first stage disconnects the
drive from the engine to the transmission
without interrupting the operation of the
PTO.
To engage live PTO:
Depress the clutch pedal fully, move
the engagement lever to the rear ‘A’. Set
the engine speed to 1789 rev/min for 540
PTO shaft speed.
To disengage live PTO:
Depress the clutch pedal fully, move
the engagement lever forward to the verti-
cal position.