Upright AB38, Service & Parts Manual

Page: 61 / 133

Troubleshooting Section
5-1 AB38 Work Platform
5.0 Introduction
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 5.1 will
help localise the trouble quickly than.
This manual cannot cover all possible problems that
may occur. If a Service Engineer finds a specific
problem that is not covered in this manual, they
should contact their local distributor and if
warranted the
UpRight Product Support at:
@ Tel: +44 (0) 845 1550 058
Fax: +44 (0) 1952 299 948
Referring to Section 3.0 and Section 6.0 will aid in
understanding the operation and function of the
various components and systems of the
AB38 Work
Platform and help in diagnosing and repair of the
machine.
When troubleshooting, ensure that the work
platform is resting on a firm, level surface.
Disconnect the batteries when replacing or
testing the continuity of any electrical
component.
When performing any service on or in the
elevating assembly area, which requires the
platform to be raised, the elevating assembly
must be securely supported by overhead
cranes, or equivalent, of suitable capacity.
WARNING
GENERAL PROCEDURE
As all problems which require troubleshooting will to
some extent be unique, the Service Engineer will
need to evaluate the steps to follow for each individual
case. Troubleshooting, however, should be carried
out in a logical thoughtful manner.
The procedure which
UpRiight recommend is as follows:
1. The Service Engineer must be familiar with the
machine and its functions. i.e.
l
which functions are supposed to work?
l
when are they supposed to work?
2. Know the symptoms, and write them down. If
possible talk to the person, operator, who
initially experienced the problem.
3. Thoroughly study both the hydraulic and electric
schematics for possible causes.
4. Test all functions to determine what works
and what does not. Although the operators
information is valuable it may be inaccurate.
5. Re-evaluate the schematics and check all
suspect components electrically, hydraulically
and mechanically to determine if they are at
fault. Check to see if there is a ‘Flash Fault’,
and if necessary refer to Section 5.2.
6. Correct the problem.
7. Test, Test, & Test the machine again to see that
the problem does not recur. Recreate the
original problem to see if the same symptoms
will repeat. Recorrect the problem and again
test the machine for a prolonged period of time.
5.0