Citytrac 4200
Citymaster 1200
Citycleaner
Service Documents
For internal use only
Status
March 2009
Page
61 of 108
5.4.5 Functions, system diagram
CT 4200 mower off;
CM 1200 suction fan off
(Y4 not connected)
Y
T-oil leakage line to tank
Circulation approx. 8 bar
Y 4
Mower/Suction fan
Through the valve Y4 is the
tankline of the hydraulic servo
controlled pressure relief valve
195bar open. At the same time
is the pressure relief vale
60bar closed. Therefore the oil
flow is goping directly to the
tank. In the system is only the
circulation pressure of appr.
8bar.