Hobart 5359D Operation And Maintenance Manual page 147

OM 2012
A . Trouble shooting is an orderly process sf checking and clin;%-~u~Tng pos:.i&ic causes
of trouh!e until the exact cause of CI trou!>le is fozld. As u rukz, the b:;t place
to start looking for the cause of a trouble in a circuit or system is at the source
of*power or supply.
Continue testing or checking the circuit or systern, sivp-by-
step,
in
an
orderly manner, until the
CCJcJSe
of trouble is locnkd.
B. The chapter provides infcrmatioo useful in diagi;osing and carrzcting certain
.
troubles v.hich cause unsatisfactory operation or failure of ihe equipment.
C. Minor troubles may & remedied by the operator; however, maior repairs ,nust
be undertaken by experienced mechan its and c lectricians on iy.
2.
Trouble Shooting Chart (Figure 9)
A. Description
The trouble shooting 'chart lists information under th'ree headings as follows:
,
(1) Trouble, Symptom, and Ccnditicn
.
(2) Probable Cause
(3) Test, Check ; and/or Remedy
B. Use of the Trouble Shooting Chart
(1) A trouble shooting chart is furnished to provide maintenance and repair
personnel with
Q
time-saving guide for locating trouble. To use the chart,
proceed as follows:
(a) Locate the symptom(s) of trouble in the "Trouble " column.
(b) Check the probabl e causes of trouble
in the "Probable Cause " column.
(c) Test, check, repair, or correct the trouble as indicated in the "Remedy"
column.
(2) If the cause of a trouble is an uncommon one and cannot be located by use
of the chart, the only alternative is to start at the source of power or supply
and check the affected circuit or system completely.
[Jse schematic and
Aug 25 '85
connection diagrams which are supplied with fhis manual.
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