Manitowoc Published 10-01-2012, Control # 045-08 3-21
777 SERVICE MANUAL ELECTRIC SYSTEM
3
Selecting Display Language
Current software for Model 777 contains English and several
foreign-language display readings. When a new computer
chip is installed, any one of the languages could appear on
the screen when the system is powered up the first time.
Once desired language is selected, it will remain in memory
until another language is selected.
To select a different display language, perform both of the
following steps at the same time:
1. Depress limit bypass switch.
2. Turn digital display confirm/select key switch to confirm
position.
Repeat steps until screen displays desired language.
Table 3-3
Operating Conditions
Listed below are operating conditions that can be viewed on display.
[1] Boom angle and luffing jib angle are displayed at same time.
[2] Optional Item.
3] Angles at which boom stops vary with attachment.
See Operating Controls in Section 3 of Crane Operator’s Manual for specifications.
Display Reading
Unit of
Measure
Operating Range
NORMAL OPERATING CONDITIONS
The operating conditions listed below are displayed by scrolling up or down with the digital display selector.
ENGINE SPEED RPM
Low idle and high idle settings determined by engine manufacturer.
BOOM ANGLE DEG Degrees boom is positioned above horizontal.
LUFFING JIB ANGLE [2] DEG
Degrees luffing jib is positioned above horizontal.
BOOM TO LUFF JIB ANG [2] DEG Degrees between centerline of boom and centerline of luffing jib.
CLAM CLOSING PRESS PSI
See Crane Mode Selector instructions in this section for procedure to
adjust pressure.
CRANE MODE
(name of mode)
—
See Crane Mode Selector instructions in this section for procedure to select
and confirm desired crane mode.
DIAGNOSTIC SCREENS
Operating conditions listed below are displayed only by depressing limit bypass switch and scrolling up with digital display
selector. To turn off diagnostic screens, depress limit bypass switch and scroll down or stop and restart engine.
A1 2 Rows of
numbers
These numbers are used to monitor and troubleshoot controls and
hydraulic systems. See Diagnostics Display in Section 10 of this manual for
explanation of these screens.
A2
A3
D1
D2
D3
DRUM 1
DRUM 2
DRUM 8 [2]
BHST
SWING
TRACK
PROGRAM M000000.0FP —
Computer Program Version. Factory service personnel will request
these numbers when troubleshooting crane problems.
CON 00000000000 —
Computer and Crane Configuration Code. Factory service personnel will
request these numbers when troubleshooting crane problems.
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