2. CONNECTION TO TRACTOR
PIGB-206X-02 FCT1460 0614
- 25 -
BYPASS VALVE
Fig. 2-1
We distinguish between two types of tractor hydraulic systems: “open centre
hydraulic” (also called “fixed pump”) and “closed centre hydraulic” (also called
“variable pump”).
If the tractor is of the
“open centre”
type, the bypass valve must be
open
in order to
allow passage of oil back to the tractor and should only be activated when a function
on the machine is activated. If the valve is not open, this can be changed at the
thumbscrew.
If the tractor is of the
“closed centre”
type, the bypass valve must be
closed
in
order to allow the tractor to close the oil flow automatically when no functions are
active. If the valve is not closed, this can be changed at the thumbscrew.
The bypass valve is placed at the left on the valve block.
None of the hydraulic functions use more than about 15 litres of oil per minute.
Therefore the oil flow from the tractor should be set to 15 litres of oil per minute, if
possible. The bypass valve is preset to maximum 40 l/min. If this limit is exceeded,
there will be a loss of pressure which may heat the oil and the valves.
P
R
1
1
-1
7
4
3
Closed centre
Open centre
Fig. 2-1
Содержание FCT King Size 1260
Страница 1: ...Precision Chop Forage Harvester GB Original instructions Directions for use FCT 1460 ...
Страница 2: ......
Страница 22: ...1 INTRODUCTION PIGB 206X 02 FCT1460 0614 22 PR11 1810 ...
Страница 89: ...8 GREASING PIGB 206X 02 FCT1460 0614 89 8 GREASING PR11 1825 10h ...
Страница 90: ...8 GREASING PIGB 206X 02 FCT1460 0614 90 PR11 1826 50h ...
Страница 91: ...8 GREASING PIGB 206X 02 FCT1460 0614 91 PR11 1827 50h ...
Страница 92: ...8 GREASING PIGB 206X 02 FCT1460 0614 92 PR11 1830 50h ...
Страница 93: ...8 GREASING PIGB 206X 02 FCT1460 0614 93 PR11 1831 50h ...
Страница 94: ...8 GREASING PIGB 206X 02 FCT1460 0614 94 PR11 1828 250h ...
Страница 95: ...8 GREASING PIGB 206X 02 FCT1460 0614 95 PR11 1829 250h ...
Страница 102: ...12 MISCELLANEOUS PIGB 206X 02 FCT1460 0614 102 CONTROL SYSTEM PR11 1761 ...
Страница 103: ...12 MISCELLANEOUS PIGB 206X 02 FCT1460 0614 103 CONTROL BOX PR11 1762 ...