Citytrac 4200
Citymaster 1200
Citycleaner
Service Documents
For internal use only
Status
March 2009
Page
3 of 108
5.0 Hydraulic Installations
5.1
Safety regulations
31
5.2
Hydraulic pumps
32
5.2.1 Overview of pump locations
32
5.2.2 Variable displacement pump
33
5.2.3 Technical data
35
5.2.4 Hydraulic pump description
36
5.2.5 Flush valve
37
5.2.6 Gear pump, ZP1
39
5.2.7 Gear pump, ZP2
39
5.3
Traction drive
40
5.3.1 System diagram
40
5.3.2 Differential lock valve
43
5.3.3 Switching valve, working/transport mode
46
5.4
Work hydraulics
50
5.4.1.1 Valve manifold, old
50
5.4.1.2 Valve manifold, new
51
5.4.1.3 Torque, valve manifold
52
5.4.1.4 Measure values solenoid valves
53
5.4.2.1 Valve manifold, system diagram, old
55
5.4.2.2 Valve manifold, system diagram, new
56
5.4.3 Function description, valve manifold
57
5.4.4 Proportional throttle cartridge
60
5.4.5 Functions, system diagram
61
5.4.6 Proportional valve control unit
66
5.4.7 Hydraulic connections for front attachment devices
68
5.4.8 Rear connections
69
5.5
Citycleaner hydraulics
70
