Page 4-1TM12 Work Platform - European
Section 4
T
ROUBLESHOOTING
4.1 I
NTRODUCTION
The following section on troubleshooting provides guidelines on the types of problems users may
encounter in the field, helps determine the cause of problems, and suggests proper corrective
action.
Careful inspection and accurate analysis of the symptoms listed in the Troubleshooting Guide
will localize the trouble more quickly than any other method. This manual cannot cover all possi-
ble problems that may occur. If a specific problem is not covered in this manual, call our toll free
number for service assistance.
Referring to Section 2.0 and 5.0 will aid in understanding the operation and function of the vari-
ous components and systems of the Work Platform and help in diagnosing and repair of the
machine.
G
ENERAL
P
ROCEDURE
Thoroughly study hydraulic and electronic schematics in Section 5. Check for loose connections
and short circuits. Check/repair/replace each component in the Truth Table which is listed under
each machine function which does not operate properly.
Use the charts on the following pages to help determine the cause of a fault in your UpRight
Work Platform.
NOTE:Spike protection diodes at components have been left out of the charts to eliminate confusion.
U
P
R
IGHT
USA
Tel: 1-559-891-5200
FAX: 1-559-896-9244
U
P
R
IGHT
E
UROPE
Tel: +31-10-238-0000
FAX: +31-10-238-0001
WARNING
!
!
When troubleshooting, ensure that the work platform is resting on a firm,
level surface.
Unplug the machine or disconnect the battery when replacing or testing the
continuity of any electrical component.
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