Manitowoc 999 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-16-17, Control # 233-03 1-33
999 SERVICE/MAINTENANCE MANUAL INTRODUCTION
1
Free Fall Lowering
See Figures 1-21, 1-22, and 1-25
The percent of free fall drum slip to brake/clutch pedal
movement is calibrated on the free fall diagnostic display
screen.
WARNING
Falling Load Hazard!
When operating in free fall, load will lower uncontrolled if
front drum brake/clutch pedal is not applied.
Be ready to apply front drum brake/clutch pedal so
lowering speed can be controlled and load can be
stopped immediately, when necessary.
FIGURE 1-22
WA-01
8D8
WB-10
WB-09
SELECT
CONFIRM
CRANE MODE
8T
0
0
8
WB-26
WB-33DOWN SCROLL
UP SCROLL
WA-22
WA-15
K1
F4
F8
FREE FALL BRAKE
PRESSURE TRANSDUCER
FRONT DRUM
SYSTEM FAULT
BUZZER
25A
25
OPERATING LIMIT
BEEPER
5A
5A
+
_
ENGINE
10A
5D
5A
F15
STOP
STOP
3
RUN
START
7
MS1
K1
5DA
8
8P1
50 AMP
CB7
PRESSURE TRANSDUCER
SEAT SWITCH
WB-34
999CSM1-122
F12
3A
REGULATED 10V DC OUTPUT
RAISE
OFF
LOWER
FRONT DRUM
WA-03
WD-18
WD-19
DIGITAL DISPLAY
WC-05
FRONT DRUM
B
A
EDC
RAISE
OFF
LOWER
REAR DRUM
WA-04
REAR DRUM
WC-06
B
A
EDC
3
9
3
4
3
7
RIN
BLOCK UP LIMITS
HS
16
FRONT DRUM
WD-33
HS
20
FRONT DRUM
WD-08
WC-18
WD-27
ROTATION INDICATOR
FRONT DRUM
19
HS
FRONT DRUM PAWL INWD-32
BRAKE
WD-24
FD
PCP
FRONT DRUM
WD-25
RD
PCP
REAR DRUM
PUMP CONTROL
PUMP CONTROL
MOTOR CONTROL
MOTOR CONTROL
WD-28
ROTATION INDICATOR
REAR DRUM
WD-35
REAR DRUM
24
HS
REAR DRUM PAWL IN
WD-34
25
HS
PAWL OUT
PAWL OUT
WD-09
WC-19
21
HS
REAR DRUM
BRAKE
FRONT DRUM
SPEED
ENCODER
F
A
B
D
SHAFT
WD-01
WD-02
REAR DRUM
SPEED
ENCODER
F
A
B
D
SHAFT
WD-03
WD-04
3
10
3
8
PROGRAMMABLE
CONTROLLER
8D8
F4
5A
FRONT DRUM PEDAL
WA-19
17
HS
FD PROPORTIONAL VALVEWC-16
WC-28
FD FREE FALL ENABLE
18
HS
3
6
3
15

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English