chapter 4000
page 3
1,2 - 2,0 t A.C.
SERVICE MANUAL
Electric
036-0410-07
G
B
STEERING CONTROL
The steering uses the same oil as the lifting by means of a priority valve, which guarantees a sufficient
oil flow to the power steering.
The oil capacity is checked by the Ls signal (load - sensing), coming from the steering unit so that the
oil quantity sent to the power steering is equal to its real request.
The exceeding oil is sent to the control valve for other functions.
When the steering wheel is turned, proportionally to the above rotation, the steering unit “measures” a
volume of oil and sends it into the steering cylinder.
Every 1000 hours
- check the entire system to identify any leak;
any intervention must be carried out without
pressure in the system.
Every 5000 working hours
- replace hoses (G) connecting the orbitrol
device to the steering jack.
Every 10000 hours
- replace the hydraulic pipe system.
Power steering pressure setting
The max power steering pressure must be
100 Bar
In order to set the power steering pressure, the following operation are necessary:
1 - Fit a manometer on the pressure access point (A) on the punp;
2 - In order reach the adjusting screw (B) remove the cap (by means of an Allen wrench) positioned
on the upper side of the orbitrol (power steering unit);
- screw in to increase the pressure
- screw out to decrease the pressure
A
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