SHB 28Z3 EN – Edition 2.0 * 28z3s710.fm 7-11
Options
In addition, a safety valve (1) protects the hydraulic rams from overload. Overload actuates
pressure switch (4), the warning device comes on and the buzzer sounds.
Notice!
The valve settings are sealed, no modifications for legal reasons!
Wiring diagram
Setting the pressure switch
Adjust the pressure switch – see Setting the pressure switch on page 7-17
Boom up to serial number AG02443
1
2
3
4
5
6
2
6
2
3
6
4
1
2
3
4
5
6
2
1
6
3
5
4
Boom serial numbers AG02444 – AG04827Boom from serial number AG04828
6
5
3
6
2
5
6
Pos. Designation Port Pos. Designation Port
1 Safety valve CT1 5 Tank line DR
2 Directional valve CT2 6 Raise/lower boom V
3 Pilot control port PILOT
4 Pressure switch GP