Sakai SW800 Series, Shop Manual

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4-004
How to Use this Chapter, "TROUBLESHOOTING" and How to Follow the Troubleshooting Flow
3. How to Use this Chapter, "TROUBLESHOOTING" and
How to Follow the Troubleshooting Flow
1. Troubleshooting codes
1) Electric system: E-01 to E-15
2) Hydraulic and mechanical systems: H-01 to H-10
2. How to follow the troubleshooting flow
★
See example shown on page 4-005.
①
Troubleshooting code No.and fault symptom
On top of the flow chart are code No.and fault symptom.
② General precautions
Under the code and fault symptom are precautions (with mark
★ ) common to the whole items in
the flow chart. Though these precautions are not indicated inside each box ( □ ) which contains
checking instructions, pay attention to these precautions when making inspections described in
the box (
□
).
③ Sub classification
To make diagnosis easier or for simplified flow chart, fault symptom is subclassed . Ex. a)
Starter does not run
④ How to forward the diagnosis
• Each box ( □ ) contains diagnosis procedure. Depending upon these results of inspection or
measurement, proceed to YES or NO line.
• Normally, if the result is YES then proceed to upper line. If NO then go to the lower line.
NOTE: The number above each box (
□
) is a reference number. It does not mean a sequence
in which diagnoses proceed.
• As a result of a diagnosis, if YES line or NO line directly goes to the description in CAUSE
column, take necessary action as indicated in REMEDY column.
• Under each box (
□
) are normal values and conditions necessary for inspection and
adjustment. If the result gives an affirmative answer to the question in the box or agrees with
the normal value indicated under the box, go to YES line. Otherwise, go to NO line.
• The normal values were taken from the standard value list.
• For locations of component parts such as relay mentioned in the flow chart, see drawings
which show locations of key units. Line colors mentioned in the flow charts are indicated in the
electric wiring diagram shown under the flow charts. In the actual machine, each harness is
identified by color.
YES
NO
1