Manitowoc 999 Service And Maintenance Manual

Reference Only
ELECTRIC SYSTEM 999 SERVICE/MAINTENANCE MANUAL
3-18
Published 05-16-17, Control # 233-03
Computer Bus C-03 8P1 12 Volts DC
Computer Bus C-12 8P1 12 Volts DC
Computer Bus C-21 8P1 12 Volts DC
Computer Bus C-30 8P1 12 Volts DC
Counterweight Pins Retract Solenoid D-26 56A 12 Volts Nominal I/O 3 J10-23 (DO)
Counterweight Pins Retract Switch B-30 89D5 12 Volts Nominal I/O 3 J10-08 (DI)
Crane Mode Confirm Switch B-10 89T2 12 Volts Nominal I/O 1 J6-16 (DI)
Crane Mode Select Switch B-09 89S2 12 Volts Nominal I/O 1 J6-15 (DI)
Display Scroll Down Switch B-33 89K 12 Volts Nominal I/O 3 J10-11 (DI)
Display Scroll Up Switch B-26 89J 12 Volts Nominal I/O 2 J8-18 (DI)
Engine Clutch Cylinder Direction C-11 68CA 0 Volts Off; 12 Volts On I/O 1 (D1)
Engine Clutch Cylinder Speed C-20 68CB Variable 0-12 Volts I/O 1 (D1)
Engine Clutch Disconnect Switch B-04 89EC 12 Volts Nominal I/O 1 (D1)
Engine Coolant Temperature Switch E-19 89U3 0 Volts I/O 4 J12-15 (DI)
Engine Oil Pressure Switch E-18 89T3 12 Volts Nominal I/O 4 J12-14 (DI)
Engine RPM Magnetic Pick-Up D-07 24
7.5 Volts or 0 Volts Not Moving
3.5 Volts Moving
I/O 1 J6-05 (DI)
Engine Throttle Control C-20 68KB
Power On: 2.76 to 8.84
Engine Running: 2.64 to 8.74
I/O 1 J6-39-40 (DO)
Engine Throttle Lever A-17 68K
Power On: .064 to 10.05
Engine Running: .101 to 10.09
I/O 1 J6-39-40 (DO)
Engine Throttle Pedal A-18 68KA
Power On: .280 to 10.05
Engine Running: .092 to 10.03
I/O 2 J7-62 (AI)
Free Fall Filter Alarm E-17 89H5 12 Volts Nominal I/O 4 J12-13 (DI)
Front Drum Brake Pedal A-19 80EP
0 Volts Neutral; 1.4 to 5 Volts Lower;
5 to 8.6 Volts Raise
I/O 2 J7-64 (AI)
Front Drum Flange Encoder CH A D-01 80MA
7.5 Volts or 0 Volts Not Moving
3.5 Volts Moving
I/O 1 J6-01 (DI)
Front Drum Flange Encoder CH B D-02 80MB
7.5 Volts or 0 Volts Not Moving
3.5 Volts Moving
I/O 1 J6-02 (DI)
Front Drum Free Fall Brake Pressure A-15 80QF 1.2 Volts at 300 psi; 1 Volt at 0 psi I/O 2 J7-56 (AI)
Front Drum Handle A-03 80P
0 Volts Neutral; 1.4 to 5 Volts Lower;
5 to 8.6 Volts Raise
I/O 1 J5-50 (AI)
Front Drum Hydraulic Clutch Solenoid C-16 80F 12 Volts Nominal I/O 1 J6-31-32 (DO)
Front Drum Hydraulic Pressure A-22 80QS 1.2 Volts at 300 psi; 1 Volt at 0 psi CPU J3-53 (AI)
Front Drum Maximum Bail Limit Switch B-02 89V 12 Volts Nominal I/O 1 J6-08 (DI)
Front Drum Minimum Bail Limit Switch B-03 89T 12 Volts Nominal I/O 1 J6-09 (DI)
Front Drum Motor Control D-24 80MC
0 Volts to 1/3 Handle Motion
0.96 to 2.19 Volts 1/3 to Full Handle Motion
I/O 1 J6-06 (AO)
Front Drum Park Brake Solenoid C-18 80E 12 Volts Nominal I/O 1 J6-35-36 (DO)
Front Drum Park Brake Switch D-08 89Y3 12 Volts Nominal I/O 3 J10-15 (DI)
Front Drum Pawl Disable Solenoid D-33 80RA 12 Volts Nominal I/O 3 J10-35-36 (DO)
Front Drum Pawl Enable Solenoid D-32 80R 12 Volts Nominal I/O 3 J10-33-34 (DO)
Front Drum Pump Control (Servo Driver 1) C-05 80A
0 to 2.8 ± 10% (110 mA) Volts Down;
0 to -2. 8 ± 10% (-110 mA) Volts Up
I/O 1 J6-41 (AO)
Front Drum Rotation Indicator D-27 80N 12 Volts Nominal I/O 3 J10-23-24 (DO)
Front Drum Spring Clutch Solenoid C-28 80FS 12 Volts Nominal I/O 2 J8-27-28 (DO)
Description Pin Wire
Test Voltage
(DC unless otherwise specified)
Board
(Signal Type)

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English