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Malfunctions in driving mode
7.7 Troubleshooting
Operating manual GMK 6400
3 112 993 en
7 - 33
1
2
.0
7.
201
3
7.7.7
Differential lock malfunctions
7.7.8
Malfunctions in the hydraulic system/hydraulic oil cooler
Malfunction
Cause
Remedy
Differential locks cannot be
switched on
Current speed over approx.
5 km/h (3 mph)
Slow down or stop the
truck crane
Drive train under tension
Slowly drive truck crane
back back and forth,
Compressed air system
insufficiently filled
Fuses F2/1, F4/6, F5/4, F5/7
blown
Replace blown fuse;
Differential locks cannot be
switched off
Current speed over approx.
5 km/h (3 mph)
Slow down or stop the
truck crane
Drive train under tension
Slowly drive truck crane
back back and forth,
Error symbol is displayed
ECOS malfunction
Read out error messages
(
p. 7 - 35) and notify
Manitowoc Crane Care
Malfunction
Cause
Remedy
Hydraulic oil temperature
above 80°C, fan in the hydrau-
lic oil cooler is running
Hydraulic system under
extreme strain and ambient
temperature very high
Stop the truck crane while tak-
ing the traffic situation into
account and run the engine
until the oil has cooled down
Hydraulic oil temperature
above 80°C, fan in the hydrau-
lic oil cooler is not running
Fuse F1/3 on carrier blown
Stop the truck crane while tak-
ing the traffic situation into
account, and replace the
defective fuse;
Defective temperature sensor
in the hydraulic system (error
message is displayed)
Have the temperature sensor
replaced
Summary of Contents for GROVE GMK 6400
Page 1: ...3 112 993 en 12 07 2013 Operating manual Part 1 Driving ...
Page 9: ...Correction sheet GMK6400 3 302 804 en 7 27 08 2018 Hook tackle Reeving A 1x ...
Page 10: ...27 08 2018 8 3 302 804 en Correction sheet GMK6400 Blank page ...
Page 12: ...06 06 2014 2 3 113 115 en Correction sheet GMK6400 Blank page ...
Page 18: ...22 01 2014 6 3 113 060 en Additional page GMK6400 Blank page ...
Page 26: ...3 112 993 en Operating manual GMK 6400 12 07 2013 Blank page ...
Page 28: ...3 112 993 en Operating manual GMK 6400 12 07 2013 ...
Page 32: ...Overview 1 4 Terms used 1 4 3 112 993 en Operating manual GMK 6400 12 07 2013 1 4 Terms used ...
Page 34: ...Overview 1 4 Terms used 1 6 3 112 993 en Operating manual GMK 6400 12 07 2013 Blank page ...
Page 64: ...3 112 993 en Operating manual GMK 6400 12 07 2013 ...
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Page 383: ...Operating manual GMK 6400 3 112 993 en 12 07 2013 8 8 Index ...
Page 384: ...3 112 993 en Operating manual GMK 6400 12 07 2013 ...
Page 386: ...Index 8 2 3 112 993 en Operating manual GMK 6400 12 07 2013 Blank page ...
Page 404: ...Index 8 20 3 112 993 en Operating manual GMK 6400 12 07 2013 ...
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Page 407: ...3 112 993 en 12 07 2013 Operating manual Part 2 Crane operation ...
Page 415: ...Correction sheet GMK6400 3 302 804 en 7 27 08 2018 Hook tackle Reeving A 1x ...
Page 416: ...27 08 2018 8 3 302 804 en Correction sheet GMK6400 Blank page ...
Page 418: ...06 06 2014 2 3 113 115 en Correction sheet GMK6400 Blank page ...
Page 424: ...22 01 2014 6 3 113 060 en Additional page GMK6400 Blank page ...
Page 432: ...3 112 993 en Operating manual GMK 6400 12 07 2013 Blank page ...
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Page 937: ...Operating manual GMK 6400 3 112 993 en 12 07 2013 15 15 Index ...
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Page 940: ...Index 15 2 3 112 993 en Operating manual GMK 6400 12 07 2013 Blank page ...
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