Iran Tractor ITM 950, Operators Instruction Book

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3
Tractor operation 45
ATTACHING AN IMPLEMENT
WARNING
If two people are involved in attach-
ing an implement, great care must be
taken. When making any adjustment to
the hydraulic lift system, the person in
the area of the linkage must stand clear.
1. Lower the links using Hydraulic Con-
trol Lever, back the tractor up to the
implement, raise the lower links so
that the left-hand link is in line with
the pin on the implement.
2. Apply the parking brake before dis-
mounting from the tractor.
3. Fit the left-hand lower link first and
secure with a linchpin. If any small up
and down adjustments of the lower
links are necessary they must be made
from the driver’s seat.
4. Attach the right-hand lower link to the
implement. Use the leveling lever if
necessary to adjust the height of the
link, then fit the linchpin.
5. Attach the top link to the implement
and secure with linchpins and adjust
for length.
Fig. 14: ‘A’ frame
On implements which have variable top
and bottom attachment points, the link-
age should be connected in accordance
with the dimensions given in Table 3-3,
depending on the category of linkage used
(In this tractor is category 1), see Fig.14.
Linkage
type
‘A’
lower link
width
‘B’
Top link
height
Category 1 683 mm 460 mm (min)
Category 2 825 mm 510 mm (min)
Table 3-3: To ISO standard 730/1-1977(E).
With heavy implements this will reduce
unnecessary strain on the tractor and loss
of lift capacity.
Some implements have two or more
optional positions for the lower links.
Providing the implement will penetrate to
the required depth, reasonably rapidly, it
is usually best to use the lowest pick-up
point provided. This will give the maxi-
mum weight transfer, minimise hydraulic
system pressure and power losses.
6.If the leveling lever was used to facili-
tate the attachment of the right-hand
lower link, adjust the right-hand lift
rod to its normal operating length by
screwing the lift rod in or out until the
implement is level.
7. Adjust the top link as necessary to
level the implement.
DETACHING AN IMPLEMENT
WARNING
If two people are involved in detach-
ing an implement, great care must be
taken. When making any adjustment to
the hydraulic lift system the person in
the area of the linkage must stand clear.
1. Select a level area as this will make