HYDRAULIC SYSTEM MLC165-1 SERVICE/MAINTENANCE MANUAL
2-12
Published 05-26-17, Control # 238-02
Pilot Signal Manifold
The pilot signal manifold (Figure 2-15) receives flow from
each hydraulic proportional control handle in the cab.
Pressures transducers allow the control system to read the
pressures produced by the proportional control handles.
Solenoid valves SV1–SV8 allow the control system to
configure which handles control which drum functions.
Proportional solenoid valves PV1–P8 allow the control
system to override the hydraulic flow commands of the
handles.
Figure 2-15. Pilot Signal Manifold
Front of Left-Side Enclosure
Item Description
Proportional Pressure Reducing Solenoid Valves
1Boom Up
2 Boom Down
3 Front Drum Up
4 Front Drum Down
5Rear Drum Up
6 Rear Drum Down
7 Aux Drum Up
8 Aux. Drum Down
Directional Control Solenoid Valves (normally closed)
9 Select Handle 4y to Aux Down
10 Select Handle 4y to Aux Up
11 Select Handle 4y To Whip Down
12 Select Handle 4y To Whip Up
13 Select Handle 3 Boom Up
14 Select Handle 3 Boom Down
Pressure Transducers
15 Handle 6
16 Handle 2 Up
17 Handle 2 Down
18 Handle 3 Down
19 Handle 3 Up
20 Handle 4x Left
21 Handle 4x Right
22 Handle 1 Down
23 Handle 1 Up
24 Handle 4 Down
25 Handle 4 Up
26 Handle 5
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