![background image](http://html1.mh-extra.com/html/fendt/favorit-900/favorit-900_workshop-manual_4001870009.webp)
Farmer 400
Fav 700
Fav 900
Working and steering hydraulics / General system
Safety instructions and measures
A
General
12/1999
0000
000012
A
a
1/1
Capitel
Docu-No.
Index
Date
Version
Page
Safety instructions and measures
Central control block
Text-module
Reason:
Bullet-List
●
The pressure pipes of the front suspension between the central control block ZSB and the
suspension cylinders,
●
the accumulators ASP1 and ASP2 on the central control block and
●
the piped accumulator ZSP
are subject to a pressure of 200 bar even with the engine switched off and the suspension
lowered (=locked)!
Action:
The pressure has to be relieved manually before any repair is carried out or anything is released or
opened in this area.
Note:
The "Lock suspension / lower suspension" command has no effect!
Steps:
PM-Picturemodule
PM-Picturemodule
Text-module
Check:
Emptying of accumulator sounds like flowing liquid as oil temperature increases (scarcely audible in
winter).
Note and comparison:
For tractors without a central control block (e.g. Fav 500) it is still necessary to relieve pressure using
the "External power supply" method.
PMTAB_Picture
1. Loosen stopcock item A (stopcock is labelled
AV2 in further documents and circuit diagrams) on
top of central control block by approx. 1 turn
anti-clockwise.
PMTAB_Picture
2. Loosen stopcock item B (stopcock is labelled
AV1 in further documents and circuit diagrams) on
bottom of central control block by approx. 1 turn
anti-clockwise.