20
8.
Adjusting the pressure relief valves
As already said in the chapter “Hydraulic part” it is important to adjust the pressure relief
valves.
8.1 Adjusting pressure relief valve O1: should be same as tractor
1.
Mount pressure gauge meter somewhere between the pump (P) and the selector valve
(V1)
2.
Make sure that the autosteer system is electrical turned off.
3.
Turn on the engine of the tractor.
4.
Adjust the pressure relief valve O1 as low as possible (by turning the tuning bolt of the
relief-valve counterclockwise).
5.
steer the steering-wheels completely to one side and keep on steering to that side so
that the steering pressure will get its maximum value.
6.
Adjust the pressure relief valve O1 to a higher value (by turning the tuning bolt of the
relief-valve clockwise), keep on steering to one side and look at the pressure gauge
meter. Keep on making the pressure higher by turning the tuning bolt of the relief-
valve clockwise till the pressure doesn’t get higher:
this is the point that the value of
the pressure relief valve of O1 is the same as the pressure relief valve of the
tractor.
REMARK
Pressure relief valve O1 does not influence steering sensitivity.
Do not change pressure relief valve O1 if you want to adjust the steering sensitivity.
Go to section ‘8.1 Adjust pressure relieve valve O2’ to read more about adjusting
steering sensitivity.
O1 relief valve: pressure should be same as pressure for relief valve tractor.
Содержание UNIVERSAL AUTOSTACKER
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