Body and Implement Mounting Guidelines U500 North America
Hydraulic
system
Page 214 of 294
August 2005
6.3.3 Front connectors of the power hydraulic system
(code H93 & H94)
There are 13 hydraulic connections available at the front of the
Unimog. In addition to the basic hydraulic system (circuit 1 and
circuit 2), connections of the power hydraulics at the front
could be ordered. The connections of the power hydraulic cir-
cuit 3 are labeled with red covers and the connectors of circuit
4 are labeled with green covers (see Figure 6.15 and Figure
6.16).
Figure 6.15: Front connections of the power hydraulics circuit 3
Figure 6.16: Front connections of the power hydraulics circuit 4
6.3.4 Center power hydraulic connections
The connections for the power hydraulic circuits 3 and 4 are
integrated in the platform subframe. They are located on the
left longitudinal subframe member above the battery box. The
positions of the center connections of the power hydraulic cir-
cuits are labeled with red covers shown in the following fig-
ures.
Figure 6.17: Center power hydraulic connections circuit 3
Figure 6.18: Center power hydraulic connections circuit 4
pressure line closed circuit; plug
with cap nut and inside thread
return line closed circuit;
socket with outside thread
pressure line,
open circuit,
plug
return line,
open circuit,
socket
leakage oil con-
nection, open
circuit, socket
Re-
turn
Leakage oil
connection
Pressure
line
return
line
leakage oil
connection
pressure
line
