• the cased ASPL, ASPR and ZSP pressure accumulators
DANGER: are under 200 bar pressure, even when the engine is switched off and the
suspension is lowered (= locked).
Safety measures:
Prior to each repair and after releasing or opening in this area, the pressure must be
released manually.
NOTE:
The "Lock suspension/lower suspension" command has no effect!
Even externally energizing the solenoid valves
Y013
- lower suspension solenoid valve and
Y065
-
suspension raising solenoid valve has no effect!
(There are hydraulic pilot-operated non-return valves built in)
To release pressure:
• Screw in the knurled-head screw on the
MVFS
[Y013]
- Suspension lowering solenoid valve;
the chassis may be lowered
• Screw in the knurled-head screw on the
MVFH
[Y065]
- Suspension raising solenoid valve;
the rebound accumulator will be relieved
GUID-EBBBB626-0473-46B7-B630-0AC52F18AD35-high.jpg [High]
Fig. 1
Check:
As the oil temperature rises, the emptying accumulator will make a flowing sound
(barely audible in winter).
3. Working on the brake system
DANGER: The brake system hydraulic
lines remain under pressure even
when the engine has been switched
off!
Safety measures:
Before each repair to the brake
system or when removing the cab,
the pressure must be relieved
manually.
To release pressure:
1.
Engine must be off
2.
Secure the tractor to prevent it from rolling
away.
3.
With the hand brake applied, press the foot
brake 50 times
4.
Apply the hand brake 20 times
GUID-2347D0BC-3E24-4869-A351-4AC21CDB351B-high.jpg [High]
Fig. 2
General notes
:
1. Overall system/tractor
FENDT 800 Vario S4
1-5
X990.005.530.013
