Manitowoc 999 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-16-17, Control # 233-03 1-45
999 SERVICE/MAINTENANCE MANUAL INTRODUCTION
1
To raise gantry in Crane Setup mode after rigging is installed,
move boom hoist handle (1) all the way forward. The handle
neutral switch closes, sending an input voltage of 5 volts or
less to PC. The PC sends a positive output signal brake
release solenoid HS-13. Brake release solenoid valve shifts,
to block tank port and open port from low-pressure side of
closed-loop to boom hoist brake cylinder spring, releasing
brake. The PC sends a negative output signal to enable
boom hoist pump EDC (11) that tilts pump swashplate to
stroke boom hoist pump in the lower direction.
FIGURE 1-32
999CSM1-131
87F
8D8
WB-10
WB-09
SELECT
CONFIRM
CRANE MODE
8T
0
0
8
WB-26
WB-33DOWN SCROLL
UP SCROLL
WA-24
K1
F4
F8
PRESSURE TRANSDUCER
BOOM HOIST
SYSTEM FAULT
BUZZER
25A
25
OPERATING LIMIT
BEEPER
5A
5A
+
_
ENGINE
10A
5D
5A
F1
STOP
STOP
3
RUN
START
7
MS1
K1
5DA
8
8P1
50 AMP
CB7
SEAT SWITCH
WB-34
F12
3A
REGULATED 10V DC OUTPUT
RAISE
OFF
LOWER
BOOM HOIST HANDLE
WA-05
WD-18
WD-19
DIGITAL DISPLAY
HS
13
BOOM HOIST
3
11
3
1
3
4
WC-14
BOOM HOIST
B
A
EDC
WD-37
HS
15
BOOM HOIST PAWL OUT
WD-10
WC-09
3
10
3
9
3
5
3
3
GANTRY
UP LIMIT
WB-22
WE-29
BH
PCP
BOOM HOIST
MOTOR CONTROL
PUMP CONTROL
WD-29
ROTATION INDICATOR
BOOM HOIST
14
HS
BOOM HOIST PAWL IN
WD-36
DRUM BRAKE
BOOM HOIST
SPEED
ENCODER
F
A
B
D
DRUM SHAFT
WD-05
WD-06
WA-35
SENSOR
MAST ANGLE
WA-21
PRESSURE TRANSDUCER
ACCESSORY
3
12
PRESSURE SWITCH
WB-36
ACCESSORY
3
2
WC-06
REAR DRUM
B
A
EDC
3
13
PUMP CONTROL
WD-25
REAR DRUM
MOTOR CONTROL
PCP
RD
WD-34
HS
24
REAR DRUM PAWL OUT
25
HS
REAR DRUM PAWL IN
WD-35
WC-32
HS
3
GANTRY LOWER
4
HS
GANRTY RAISE
WC-33
GANTRY RAISE
GANTRY LOWER
POWER
BOOM HINGE
PINS RETRACT
COUNTERWEIGHT
PINS DISENGAGED
BOOM HINGE
PINS ENGAGED
WB-28
WB-31
WB-32
WB-27
WB-30
PROGRAMMABLE
CONTROLLER

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English