Electrical Faults - Terex Genie GTH-4017 EX Service Manual

November 2008
5.3

ELECTRICAL FAULTS

Problems
When key is turned to 1, the
dashboard is not powered
The machine cannot be started
Document 57.0009.0427
Causes
Battery discharged.
Battery disconnect switch.
Ground.
40A F2G fuse blown.
Ignition key block..
Problem of the wiring line.
Ignition key.
Emergency stop button activated or
damaged
Relay K11 damaged.
70A K01 or RL2 relay damaged.
Problem of the wiring line from relay
K11 to relay K01 - RL2.
Speed selector not in neutral
position.
GTH-4017EX GTH-4514EX GTH-4013EX
Section 5 - Problems-Causes-Solutions
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PROBLEMS CAUSES
Solutions
C h e c k t h e b a t t e r y , r e p l a c e i f
necessary.
Check that the disconnect switch
is in the correct position and works
fine. Replace if damaged.
Check that the ground braid between
chassis and engine is correctly
connected and intact.
Check the fuse in the box inside
the engine compartment; replace
if necessary.
Check that contact 30 of the ignition
key is powered; if you have not 12V
on contact 15/54, change the key.
Check the wiring up to the input
of the fuses and relays board for
continuity.
Check that contact 50 of the key
supplies 12V when the key is in the
start position (turned right).
Check if the button has been
pressed accidentally; check the
efficiency of the contacts.
C h e c k t h e r e l a y ; r e p l a c e i f
necessary.
Check the relay in the box inside
the engine compartment; replace
if necessary.
Check the wiring for continuity.
Check if the speed is engaged or
change the speed selector.
-
SOLUTIONS
3