Manitowoc Published 07-19-16, Control # 249-01 1-37
2250 SERVICE/MAINTENANCE MANUAL INTRODUCTION
As the swing control handle is moved to the neutral position,
the PC compensates for hydraulic system leakage or
changing engine speed. The PC sends a 0 V output to adjust
the swashplate to the centered position.
RF-13
Swing Holding
Brake Switch
50 Amp
8P1
87FA 10 V Regulated Supply
WA-08
WA-01
Swing Control Handle
K1
8
Left
5A
F16
3A
Right
F12
5A
HS
7
HS
8
HS
9
8T
F8
15A
8S
Crane Display
WD-19
WD-20
WC-24
Swing Pump
EDC
B
A
0
Swing Brake
WD-12
Swing Left
Pressure
Sender
Swing Right
Pressure
Sender
WA-24
WA-23
Controller
Programmable
Swing/Travel Alarm
WD-35
Not Used
FIGURE 1-20
Not Used
CB9
Swing Pump
B
A
(350 psi)
24 bar
M104181
Suction
Manifold
Charge
Pump
Swing Left
Swing Right
.060
X
X
HS-7
Pilot Charge Pressure
From Boom Hoist Pump
Brake
Swing
(200 psi)
14 bar
A
B
.060
FIGURE 1-21