INTRODUCTION 16000 SERVICE/MAINTENANCE MANUAL
1-38
Published 05-09-17, Control # 014-28
center position. This shifts the motors back to maximum
displacement for slower output speed to slow drum rotation.
When control handle is moved to neutral position, Node-1
controller stores the load holding pressure in pressure
memory. After control handle center switch opens, Node-5
controller sends a zero output to disable brake release
solenoid HS-20. Drum brake valve shifts to block pilot
pressure to brake and opens a line to tank. When brake
applies, an input signal is sent to Node-1 controller. Node-3
controller sends a 0 volt output to each drum pump EDC to
de-stroke pumps. Node-3 and 5 controllers sends a 0 volt
output to each motor PCP.
Drum 1 to drum 2 diverting solenoid HS-16 remains enabled
until drum 1 handle is moved.
Drum 2 Electrical Schematic
DI P12-26
D0 52-32
Seat Switch
HS
16
Drum 1
Drum 2
Diverting
Gnd 43-D
DO 43-C
Drum2
Drum 1
Diverting
HS
21
Gnd 43-F
DO 43-E
Hyd
Psi
43-k Gnd
43-V 24 Volts
43-d AI
EDC
Gnd 34-G
Gnd 34-E
DO34-H
DO 34-F
Pump 4
Drum 1
Drum 2
EDC
34-K Gnd
34-L Gnd
34-S DO
34-M DO
Pump 6
Drum 2
Drum 1
+
–
PWR
CAB
System Fault Alarm
RCL Cab Fault Alarm
P11-07
P11-19
Display 1
Display 2
P11-01
P12-31
P12-32
P11-21
Start
WCP
CAN Power
Run 3
P12-24
Cab Power
Engine Stop
10 Amp
50 Amp
24 Volts
50 Amp
6C5A
6C5
CB7
6A
6C7
6C14
CB5
CB8
8C
8
HS
20
M/C
FIGURE 1-28
Drum 2
Park Brake
NODE 2
NODE 0
NODE 3
NODE 1
(Master)
NODE 4
NODE 5
DI P12-14
DO P52-07
DO P52-17
DI P51-08
DO P52-16
5 Volts P52-34
AI P51-04
Gnd P51-22
56-D DO
P52-25 Gnd
P52-02 DO
56-C Gnd
56-A Gnd
56-B DO
Drum 2
Control Handle
Handle
Rotation
Indicator
Drum 2
Pressure
Sender
RS Drum 2
Motor
Control
Drum 2
Brake
M/C
36-C Gnd
36-D DO
LS Drum 2
Motor
Control
SS
DO 56-g
EC1B 56-p
Drum 2 Motor
Speed Sensor
Gnd 56-j
EC1A 56-n
Raise
Lower
Raise
Lower
16-1020
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