Malfunctions In The Hydraulic System/Hydraulic Oil Cooler; Malfunctions When Inclining The Crane Cab; Malfunctions When Operating With The Hand-Held Control - Manitowoc Grove GMK6300L Operating Manual

Malfunctions during crane operation
14.4 Finding and eliminating malfunctions
14.4.10
Malfunction
Hydraulic oil temperature
above 80 °C (176 °F), fan in
the hydraulic oil cooler run-
ning
Hydraulic oil temperature
above 80 °C (176 °F), fan in
the hydraulic oil cooler not
running
g
Symbol is red
14.4.11
Malfunction
Crane cab inclination function
not working
14.4.12
Malfunction
CAN lamp flashes or stays off
after connecting the hand-
held control
Motor will not start
Pre-selected function cannot
be performed
Operation not possible
14 - 24

Malfunctions in the hydraulic system/hydraulic oil cooler

Hydraulic system is heavily
loaded
Fuse F1/7, F1/8 blown.
Faulty temperature sensor in
the circuit of the hydraulic
system, error message is
displayed
Corresponding hydraulic oil
filter soiled

Malfunctions when inclining the crane cab

Fuse F1/1, F1/7 blown

Malfunctions when operating with the hand-held control

Some other socket is lacking a
bridging plug
Fuse F2/6 blown
Ignition in the driver's cab
switched on
Another function has been
pre-selected
Malfunction in the control
system
Cause
Cause
Cause
3 112 xxx en
Remedy
Stop the crane operation and
keep the engine running until
the oil has cooled down
Stop crane operation and
replace blown fuse;
à
p. 14 - 6
Have the temperature sensor
replaced
Change hydraulic oil filter;
à
Maintenance Manual
Remedy
Replace the blown fuse;
à
p. 14 - 6
Remedy
Insert bridging plug;
à
p. 12 - 21
Replace the blown fuse;
à
p. 14 - 6
Switch off the ignition in the
à
driver's cab; p. 4 - 23
Pre-select the desired function
Manitowoc Crane Care
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Operating Manual GMK6300L