Test Exhaust Gas Color; Method For Testing Exhaust Gas Color By Handy Smoke Checker - Komatsu PC500LC-10R Shop Manual

TEST EXHAUST GAS COLOR

TEST EXHAUST GAS COLOR

Tools for testing exhaust gas color
Symbol Part No.
A 799–201–9002 Handy smoke checker
Commercially
B
available
k
Place the machine on a level ground, lower the work equipment completely to the ground in a stable
posture, set the lock lever to LOCK position, and then stop the engine.
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Be careful not to touch any hot parts when installing or removing the testing tools.
Check this item under the following conditions.
• Engine coolant temperature: 60 to 100 °C
• After having it kept for 5 seconds at normal condition, collect the exhaust gas.
If compressed air or electric power as power source is not available in the field, use handy smoke checker A.
When recording official data, etc., use smoke meter B.
For testing the exhaust gas color to perform troubleshooting, refer to this section.

METHOD FOR TESTING EXHAUST GAS COLOR BY HANDY SMOKE CHECKER

1.
Fit a sheet of filter paper to the handy smoke checker A.
2.
Insert the exhaust gas intake pipe of handy smoke checker
A into the tailpipe.
REMARK
Insert the probe so that its tip is at the center of the piping,
and it is in parallel with the piping.
3.
Start the engine.
4.
Select and display "Pre-defined Monitoring" (01/11) by re-
ferring to "SET AND OPERATE MACHINE MONITOR".
5.
Set the engine coolant temperature so that it is within the testing condition range.
6.
Turn off the auto-deceleration.
7.
Turn the swing lock switch to ON position.
8.
Turn the fuel control dial to MAX (High idle) position and operate the work equipment control lever. Collect
the exhaust gas to the filter paper by operating the handle of smoke checker A when the oil pressure is
relieved in arm IN circuit.
REMARK
• Collect it after the arm IN relief operation is held for 5 seconds.
• Collecting time: 1.4±0.2 seconds
9.
Remove the filter paper and compare it with the attached scale for judgment.
For standard values, see STANDARD VALUE TABLE, "STANDARD VALUE TABLE FOR ENGINE".
Remove the testing tools and restore the machine after the test is finished.
30-26
Part name
Smoke meter
30 TESTING AND ADJUSTING
Q'ty Remarks
1
Bosch index: 0 to 9
1
PC500LC-10R