M8_ServiceManual_e.pdf - 第43页

3 Mechanical Section 3-3 Head Manifold Section ■ Air Passage To maintain the designed accuracy and com ponent-placem ent rate of the m achine, clean the air passage between the air filter assy. and nozzle ho lder periodi…

3 Mechanical Section

3-2

Head Manifold Section

① VALVE (LE4-M71A1-A0X)

② FILTER (K46-M8527-C0X)

①

②

FILTER

K46-M8527-C0X

O-RING

LE4-M71A1-D0X

FILTER CAP

LE4-M71A1-C0X

3 Mechanical Section

3-3

Head Manifold Section

■ Air Passage

To maintain the designed accuracy and component-placement rate of the machine, clean the air passage

between the air filter assy. and nozzle holder periodically.

ACTION: Carry out vacuum break operation for a few seconds with the nozzle removed.

● Cleaning interval

Approx. once a week

■ Air Filter

ACTION: Remove the filter cap from the ejector manifold, and remove the filter element from inside and check it for

dirty. If it has been excessively dirty, replace it with a new one. And, replace O-rings if it has been

deformed, because it will cause air leakage.

NOTE: When put the filter cap back on the manifold, handle the cap carefully and also pay attention not to fasten it

too much, because the filter cap is made of polycarbonate.

● Inspection interval

Once a week, and when a choking error occurs

Part Name

Part No. Note

FILTER K46-M8527-C0X Filter

FILTER CAP LE4-M71A1-C0X Air Cap

O-RING LE4-M71A1-D0X O-Ring

■ Vacuum Generator

ACTION: Breakdown visually checks the silencer element, and if it is excessively dirty, replace it with a new one.

Also measure the maximum air pressure to inspect whether the vacuum generator can generate vacuum

properly.) Inspection for Head/Nozzle Clogging and Solenoid Valve

● Inspection interval

Once a week

Part Name

Part No. Remark Note

MUFFLER LE4-M71A1-H0X Muffler

MUFFLER ASSY. LE4-M71A1-F0X Muffler Assy.

3 Mechanical Section

3-4

Inspection for Head/Nozzle Clogging and Solenoid Valve

Breakdown

The following inspection must be carried out approximately once a week.

■ Inspection of Solenoid Valve

The switching valve of the solenoid valve may catch foreign matter causing air leakage. Air leakage will

turn the suction ON even if it is turned OFF.

As a result, the suction cannot be turned OFF after a component is mounted, and components may be

returned instead of being mounted on the PCB.

● Inspecting by selecting [Manual] – [Meas. Air pressure]

①Checking the maximum air pressure

Turn ON the suction and press the nozzle tip

with fingers to check the air pressure. The air pressure is

sati

sfactory if it is “580” or higher.

②Checking the head for clogging

With no nozzles placed in the head, turn ON the suction to check the air pressure. Approx. “40”is the

standard pressure level in this condition. An error will occur if the air pressure is “120” or higher during

vacuum check performed after nozzle replacement.

③Checking the nozzle for clogging

With nozzles placed in the head, turn ON the suction to check the air pressure. “Nozzle clog criteria” has

been set for each nozzle. The air pressure must be below the criteria. If it is not, the nozzle will be

considered to be clogged and an error will occur.

④Checking the solenoid valve for switching failure

Turn OFF the suction and check for change in the air pressure.

- Press the head/nozzle tip with fingers and check for change in the air pressure.

- Turn ON and OFF the suction a few times and check for change in the air pressure.

If the air pressure changes even though the suction is OFF, air is probably leaking from the suction solenoid

valve.

NOTE: Do not disassemble the solenoid valve. Manufacturer’s guarantee will be ineffective if the solenoid valve is

disassembled.

Part Name

Part No. Remark

SOL.VALVE LC1-M71A1-10X Solenoid Valve

NOTE: For official inspection, use of a digital vacuum meter is necessary to check accuracy of the displayed air

pressure value.

Part Name

Part No. Remark

MANOMETER ASSY. LC1-M89A5-00X Vacuum Gauge Set