Manitowoc 999 Service And Maintenance Manual

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

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English