Zanotti un0 060, Руководство по ремонту

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3.3 Valves
Cooling Circuit
SAE Pressure Switch Replacement
SAE threat Pressure Switches are installed on service ports, all which provided with valves, thus pressure switch replacement
keeps cooling circuit sealed.
(a)
Unscrew pressure switch from
service port.
(b)
Check service port valve for
leakage.
(c)
Remove sensor wirings replacing
with new ones.
(d)
Install new pressure switch.
Solenoid Valves
Individual Protection Devices
Goggles, Gloves, Vest
Solenoid Coil and Valve Tests
(a)
Unscrew coil fixing nut.
(b)
Remove solenoid coil from valve.
(c)
Insert a spike or a ferromagnetic bar inside solenoid coil hole.
(d)
Directly power solenoid or enable relative output signal to check
coil operativity.
(e)
Inspect valve core tube for dent, they usually block valve
operativity.
(f)
Check valve operativity manually changing valve state
(opened/closed) with testing coil.