3
Tractor operation
41
Spool valve (Figs. 15 and 16):
Hydraulic control valve, spring
loaded levers
Fig. 15: In ITM 475
1
2
Control valve lever (3 Figs. 13 and 14)
has detent system that is held in the for-
ward or rearward position. To change its
position, apply force by hand and move it to
rear or forward.
Operation:
The control valve is capable of control-
ling the following services:
Double acting rams
To operate double acting rams, attach
control lever ‘Up’. To retract the ram,
move the draft control lever to the fully
down position below the adjustable stop.
Important Note
When the ram is fully extended, return
the lever to the stop to prevent the inter-
nal pressure relief valve from discharging
continuously.
Hydraulic motors.
The lever positions are identical to
those used for single acting rams,
To engage the hydraulic motor, move
the draft control lever fully ‘Up’.
To disengage the hydraulic motor, move
the draft control lever down to the stop.
Connect the hose from the implement
single acting ram to the trailer tipping
pipe at the rear of the tractor. (Fig. 12)
Move the draft control lever to between
the sector marks, (arrowheads) to find a
position where the ram neither extends
nor retracts. Set the adjustable stop (5)
below the draft control lever.
Fig. 14: In ITM 485
1
5
4
3
2
6
Single acting ram:
Operation:
To extend the ram, move the draft
Содержание ITM 475
Страница 1: ...Iran Tractor Industrial Group OPERATOR INSTRUCTION BOOK Tractor Models ITM 475 2WD 4WD ITM 485 2WD 4WD...
Страница 3: ......
Страница 5: ......
Страница 23: ...General information 1 16 Safety decal location Both side Both side Both side...
Страница 24: ...1 General information 17 General decal location...
Страница 25: ......
Страница 37: ......
Страница 116: ...5 Specifications 109 Wiring diagram ITM 475 ITM 485...
Страница 117: ......