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Reference
Only
Manitowoc
Published 05-16-17, Control # 233-03
10-39
999 SERVICE/MAINTENANCE MANUAL
TROUBLESHOOTING
10
Test 7 – Checking Voltage at the Control Handle
Use following test points to determine the correct voltages at
control handle:
•
Engine must be off and power on, with all brakes and
locks engaged.
•
Enable the test control handle and measure the voltage
with a digital multi-meter.
•
The positive lead must be placed on the test terminal
and the negative lead on a grounded crane component
or on terminal “R”.
•
Voltages outside the normal range may indicate a
problem with the control handle, electrical circuit, or
electrical components.
Item
Description
1
Load Drum Handle
2
Boom/Swing Handle
3
Crawler Handle
4
Test Terminal
5
Ground Terminal “R”
P1524
4
3
5
1
2
Hand
Controller
Test
Terminal
Wire No.
Acceptable
Voltage (DC)
Hand
Controller
Test
Terminal
Wire No.
Acceptable
Voltage (DC)
Swing
Left
Right
Center
3
4
87FA
0
WA-08
8S Brake
WD-15 Brake
10
Ground
1.4 to 8.6
12
12
Left Travel
Left
Right
Center
87FA
0
WA-07
10
Ground
1.4 to 8.6
Boom Hoist
Left
Right
Center
1
2
87FA
0
WA-05
0
WD-29
10
Ground
1.4 to 8.6
Ground
12
Front Load
Drum
Left
Right
Center
1
2
87FA
0
WA-03
0
WD-27
10
Ground
1.4 to 8.6
Ground
12
Right Travel
Left
Right
Center
3
4
87FA
0
WA-06
8A
WB-01
10
Ground
1.4 to 8.6
12
12
Rear Load
Drum
Left
Right
Center
3
4
87FA
0
WA-04
0
WD-28
10
Ground
1.4 to 8.6
Ground
12
Summary of Contents for 999
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 999 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 297: ...R e f e r e n c e O n l y ...
Page 298: ...R e f e r e n c e O n l y ...