Manitowoc 777 Service And Maintenance Manual

Reference Only
ELECTRIC SYSTEM 777 SERVICE MANUAL
3-10 Published 10-01-2012, Control # 045-08
SIG 3 A-36 AI-33 Load Cell 3 0 to10 VDC Nominal CPU J3-60
SIG 4 A-37 AI-34 Load Cell 4 0 to10 VDC Nominal CPU J3-62
8P1 C-01 — 12 VDC System 12 VDC Nominal
8P1 C-03 — 12 VDC System 12 VDC Nominal
8P1 C-12 — 12 VDC System 12 VDC Nominal
8P1 C-21 — 12 VDC System 12 VDC Nominal
8P1 C-30 — 12 VDC System 12 VDC Nominal
8TA A-14 AI-11 Battery Voltage 6.5 VDC at 13 VDC I/O 2 J7-54
24 D-07 MP1 Engine RPM Transducer Above 9.0 Volts AC I/O 1 J6-05
25 C-29 DO-15 System Fault Alarms 12 VDC Nominal I/O 2 J8-29-30
25A C-28 DO-14 Operating Limit Alarms 12 VDC Nominal I/O 2 J8-27-28
25X C-27 DO-13 Swing/Travel Alarms 12 VDC Nominal I/O 2 J8-25-26
68KA A-02 AI-35 Foot Throttle 0.101 to 10.09 Volts CPU J3-64
68KB C-20 DO-10 Engine Throttle Interface 12 VDC Nominal I/O 1 J6-39-40
68KK A-17 AI-14 Hand Throttle 12 VDC Nominal I/O 2 J7-60
80MALS E-25 ECA7 Left Front Drum Encoder Channel A 7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 4 J12-01
80MARS E-03 ECA5
Right Front Drum Shaft Speed Encoder
Channel A5
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 3 J10-01
80MBLS E-26 ECB7 Left Front Drum Encoder Channel B 7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 4 J12-02
80MBRS E-04 ECB5
Right Front Drum Shaft Direction Encoder
Channel B5
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 3 J10-02
80A C-05 AO-S1 Front Drum Pump Control (Servo Driver 1)
0 to 2.8 ± 10% (110 Ma ± 10%) VDC Up;
0 to -2.8 ± 10% (-110 Ma ± 10%) VDC Down
I/O 1 J6-41
80DS C-35 DO-19 Front Drum Free Fall Light 12 VDC Nominal I/O 2 J8-37-38
80E C-07 DO-1 Front Drum Band Brake 12 VDC Nominal I/O 1 J6-21-22
80FLS C-33 DO-17 Left Front Drum Clutch Free Fall 12 VDC Nominal I/O 2 J8-33-34
80FRS C-16 DO-6 Right Front Drum Clutch Free Fall 12 VDC Nominal I/O 1 J6-31-32
80MA D-01 ECA1
Front Drum Flange Speed Encoder
Channel A1
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 1 J6-01
80MB D-02 ECB1
Front Drum Flange Direction Encoder
Channel B1
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 1 J6-02
80N D-27 DO-22 Front Drum Rotation Indicator 12 VDC Nominal I/O 3 J10-23-24
80P A-03 AI-1 Front Drum Handle (Handle 1)
0 VDC Neutral; 5 to 1.4 VDC Lower;
5 to 8.6 VDC Raise
I/O 1 J5-50
80Q C-18 DO-8 Front Drum Disc Brake Solenoid 12 VDC Nominal I/O 1 J6-35-36
80QS A-22 AI-19 Front Drum System Pressure (Pump 0A) 1 VDC at No Pressure; 1.2 VDC at 300 PSI CPU J3-53
80S D-24 AO-1
Front Drum Motor Control Right and
Left Side
0 VDC Up to 1/3 Handle Movement;
0.96 to 2.19 VDC 1/3 to Full Handle Movement
I/O 1 J6-06
81MALS E-27 ECA8 Left Rear Drum Encoder Channel A 7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 4 J12-03
81MARS E-05 ECA6
Right Rear Drum Shaft Speed Encoder
Channel A6
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 3 J10-03
81MBLS E-28 ECB8 Left Rear Drum Encoder Channel B 7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 4 J12-04
81MBRS E-06 ECB6
Right Rear Drum Shaft Direction Encoder
Channel B6
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 3 J10-04
81A C-06 AO-S2 Rear Drum Pump Control (Servo Driver 2)
0 to 2.8 ± 10% (110 Ma ± 10%) VDC Up;
0 to -2.8 ± 10% (-110 Ma ± 10%) VDC Down
I/O 1 J6-42
81DS C-36 DO-20 Rear Drum Free Fall Light 12 VDC Nominal I/O 2 J8-39-40
81E C-08 DO-2 Rear Drum Band Brake 12 VDC Nominal I/O 1 J6-23-24
81FRS C-17 DO-7 Right Rear Drum Clutch Free Fall 12 VDC Nominal I/O 1 J6-34-33
81MA D-03 ECA2
Rear Drum Flange Speed Encoder
Channel A2
7.5 VDC Plus or 0 VDC Not Moving; 3.5 VDC Moving I/O 1 J6-03
Wire # Pin # I/O # Description
Test Voltage
(DC unless otherwise specified)
Connection

Manitowoc 777 Specifications

General

Brand	Manitowoc
Model	777
Category	Construction Equipment
Language	English