M7_ServiceManual_e.pdf - 第31页
2 Periodical Checks 2-1 2 Periodical Checks
1 Installation
1-22
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2 Periodical Checks
2-1
2
Periodical Checks
2 Periodical Checks
2-2
Daily Checks
Visual Check
Check the followings before turning on the main switch and servo switch of the mounter.
NOTE: Power source and air supply must be in the ON state.
ITEM DESCRIPTION
Temperature and Humidity
Check the temperature and humidity.
Ambient Temperature：Accuracy assurance 23 +/-2 degrees centigrade
Operation assurance 5 to 40 degrees centigrade
(The average over a period of 24 hours does not exceed 35
degrees C.)
Relative Humidity：45 to 60 percent, non-condensing
Room Environment
If air is dusty, check air filters.
If mounter surface rusts as a result of corrosive gas, check vents, reflow ovens, and
board cleaners.
Air Supply
Make sure air pressure of the regulator indicates 0.50 MPa (5kg/cm
2
) for the
vacuum and 0.40Mpa for the vacuum break.
When the pointer of pressure gauge swings extreme (more than 0.1Mpa), the air
flow is possibly insufficient.
If drain cock contains water, drain it. (Adjusting temperature of dry air may be
required.)
If drain contains oil, investigate the cause.
Reject Tray (Front & Rear)
Make sure the mounting direction of the reject tray.
Make sure that the ends of the reject tray and the tape guide (on which station No.
sticker is placed) meet.
Make sure the reject tray sits properly and is not lifted by electronic components.
Conveyor
Make sure conveyor width of all the peripherals are the same.
Make sure no obstacles are on the conveyor.
Head Moving Range
Make sure no obstacles are in head moving range, e.g. on the adjust plate.
Board Camera
Check mirror and lens for dirt and flaw. Clean if dirty.
Note: If dust settles or condensation occurs on the mirror, the reflectance drops,
causing illumination to need to be brighter. This may lead to a drop of recognition
rate. To avoid this, always keep the mirror clean.
)
”Camera” in 3 Mechanical Section.
Beam Camera
Make sure no obstacles are on lens or mirror of beam camera, and check those parts
of dirt. Clean if dirty.
)
”Camera” in 3 Mechanical Section.
ANC
Make sure no obstacles are around ANC tower.
Nozzle
Clean nozzles if dirty. Replace if deformed.
)
”Nozzle” in 3 Mechanical Section.
Feeder Bank
Clean front and rear feeder banks.
Make sure tape feeders are set on bank securely. If not, it may cause head collision.
Input/Output Terminal
Assembly
Check connections of connectors and air hoses.