![background image](http://html1.mh-extra.com/html/fendt/favorit-900/favorit-900_workshop-manual_4001870752.webp)
Farmer 400
Fav 700
Fav 900
Steering / General system
Functional description
A
General
Fav 900 chassis number 23/3001 and up
04.12.2000
4000
000001
A
a
2/3
Capitel
Docu-No.
Index
Date
Version
Page
Functional description
●
In the need scenario, i.e. when the priority valve PVL has connected the auxiliary pump PL, a
maximum of 190 bar is reached in the steering cylinder.
●
The need scenario has to be simulated to check that connection of the pump functions properly and
to test the maximum pressure.
Bullet-List
Monitoring (possible fault codes 5.1.98; 5.1.99; 5.1.9A; 5.1.9B)
●
The hydraulic oil level in the Fav 700 and Fav 900 is monitored by means of the level switch FSG /
S036.
●
The maximum temperature of the entire hydraulic system is monitored by thermostat TWK-KOET /
B013 (warning message only).
●
The pressure-operated switch DOE-A / S025 monitors the operation of the LS pump PR to ensure
the minimum pressure.
●
The flow monitor DOE-PL / S026 monitors the function of the auxiliary pump PL to ensure the
minimum flow (note: in FENDOS this part can be found under "High-pressure filter".)
●
The electrical operational readiness of both switches is monitored separately, although both
components are connected to the same contact in the e-box.
●
In FENDIAS the joint signal can be found under "Enhanced control / steering monitor".
Text-module
Appendix:
The photos below are merely a guide for the different components. Please refer to the chapters "Tractor
/ General system 0000/D/------ " and "Electrics / General system 9000/D/------" for precise details of the
current installation locations.
PM-Picturemodule
PM-Picturemodule
PMTAB_Picture
Fig. 1
Central control block ZSB and flange-mounted
priority valve PVL
PMTAB_Picture
Fig. 2
Top of central control block ZSB with
pressure-operated switch DOE-A / S025,
pressure-relief valve for the auxiliary pump DBV-L
and max. pressure-relief valve (=safety valve)
DBV-A