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1, 2, 3. Valve control levers for
single- -acting or double- -acting cylinders
- - Fig. 42
These levers can be used in two positions or in the
central neutral position:
— forward = down;
— back = up.
VALVES WITH FLOAT SETTING
(OPTIONAL)
Your tractor can be fitted with valves with a float
setting for implements requiring this function.
To select the float setting, push the relevant valve
lever fully forward, past the first detent.
A mechanical detent will keep the lever engaged in
the float setting.
To release the control lever from the float setting,
simply pull it up into its rest position.
CONTROL VALVE LEVERS FOR SINGLE
OR DOUBLE- -ACTING CYLINDERS WITH
KICK- -OUT (
not for all markets)
All positions are available on fig. 43 for kick--out
applications.
--
position A = lever (1) back (lower implement);
--
position C = lever (1) forward (raise implement);
Neutral position B and position D are the same as
explained previously.
Valves with the kick--out feature, the lever will
automatically return to neutral position (B) when the
hydraulic cylinder has reached the end of its stroke.
Valves with the kick--out feature, are factory adjusted
to a pressure of 120(+10/--0) bar.
When a single acting valve is used, the automatic
release mechanism works only when lifting.
NOTE: A detent will hold the lever in the selected
raise or lower position until the remote cylinder
reaches the end of the stroke when the control lever
will automatically return to neutral. Alternatively, the
lever may be returned to neutral manually. The lever
will not return automatically from the float position.
NOTE: When the valve is used as single acting, the
automatic release mechanism works only when
lifting.
SECTION 3 - - FIELD OPERATIONS
- - Fig. 43
2
1
A
B
CONTROL VALVE LEVERS FOR SINGLE
OR DOUBLE- -ACTING CYLINDERS- -Fig. 43
There are four possible positions :
--
position A = lever (1) back (raise implement);
--
position B = neutral position;
--
position C = lever (1) forward (lower implement);
--
position D = lever (1) fully forward in float setting.
In this position the cylinder can extend or retract
freely, allowing the implement to follow the land
contours (not for all markets). Lever remains in
position that used.
CAUTION: leaks of pressurised hydraulic
fluid can penetrate the skin and cause
severe injuries:
- -
Never use your hands to locate a leak - - use
cardboard or paper.
- -
Switch off the engine and bleed the pressure
before connecting or disconnecting pressurised
lines.
- -
Tighten all connectors before starting the engine
or pressurising the hydraulic system.
If fluid penetrates the skin, seek medical assistance
immediately to prevent serious injury.
1
3
C
D
3--31
42
43
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