INTRODUCTION 2250 SERVICE/MAINTENANCE MANUAL
1-54
Published 11-06-15, Control # 040-13
Begin applying load drum working brake pedal as selected
control handle is moved to off to hold the load when the PC
releases the clutch from drum shaft. The load will fall
uncontrolled if working brake pedal is not applied before
moving control handle to off!
As the working brake pedal is released, the load starts to
free-fall. Lowering speed must be controlled with the working
brake pedal.
WARNING
Falling Load Hazard!
When working brake pedal is released, load on the drum
free falls. Selected working brake pedal controls lowering
speed! A hoisted load in Free Fall mode will fall unless
stopped by working brake pedal.
RF-23
50 AMP
8P1
10 VDC REGULATED SUPPLY
WA-03
WA-01
LEFT (DRUM 1) CONTROL HANDLE
K1
8
RAISE
5A
F16
3A
LOWER
F11
5A
8E
CRANE DISPLAY
WD-19
WD-20
WC-05
PUMP CONTROL 1
P/C
B
A
0
GND
MAIN CHARGE
PRESSURE
SENDER
WA-25
WA-22
WE-04
WE-03
8E
0
AS
19
87FA
WC-26
LEFT ROTATION INDICATOR
DRUM 2 PAWL IN
WE-36
WA-04
RIGHT (DRUM 2/3) CONTROL HANDLE
RAISE
LOWER
MAIN HOIST
PRESSURE
SENDER
RIGHT REAR
SPEED
SENDER
F
A
B
D
(DRUM 2)
WC-06
PUMP CONTROL 2
P/C
B
A
WD-25
MAIN HOIST MOTOR CONTROL
PCP
B
A
AS
20
DRUM 2 PAWL OUT
WE-37
AS
10
DRUM 2 CLUTCH
WC-17
AS
9
WB-27
WC-08
DRUM 2 BRAKE
DRUM 2 FREE FALL LIGHT
WD-36
F12
5A
8E
RIGHT REAR DRUM
WB-23
FREE FALL SAFETY
WB-20
LOW AIR PRESSURE
WD-34
OPT. MAIN MOTOR CONTROL
PCP
B
A
AS
8
DRUM 1 CLUTCH
WC-16
AS
12
DRUM 3 CLUTCH
WC-18
AMBER
WC-20
OPT. MAIN PUMP CONTROL
B
A
WC-29
C
D
P/C
MINIMUM BAIL LIMIT (DRUM 2)
WB-08
MAXIMUM BAIL LIMIT (DRUM 2)
WB-07
F10
5A
8D
WB-22
LEFT REAR DRUM
CONTROLLER
PROGRAMMABLE
RIGHT HANDLE DRUM 2 LIGHT
WC-11
GREEN
FIGURE 1-31
To Next Page
Loading...
Need help?
General
