Citytrac 4200
Citymaster 1200
Citycleaner
Service Documents
For internal use only
Status
March 2009
Page
48 of 108
Switching valve four-wheel / front-wheel drive
Possible faults
Possible causes
Valve does not switch
No power at solenoid magnet (coil approx. 6
Ω
)
Feed pressure too low or not provided
Aperture d = 0.6 blocked
Solenoid precontrol valve defect
Main control piston jam