M8_ServiceManual_e.pdf - 第53页

3 Mechanical Section 3-13 ■ Removing O-ring and Nozzle Filter NOTE: The filter is fixed by the O-ring. It has no right-side up. ① Insert an O-ring removal jig like illustrations b elow into the nozzle from its rear end. …

3 Mechanical Section

3-12

O-ring

If the O-ring inside the nozzle deteriorates and develops cracks, air leakage will occur. This will reduce the

maximum air pressure (negative pressure), causing problems with suction operation. If the reduction in the

maximum air pressure is found and the cause seems to be in the nozzle, replace the O-ring inside the nozzle.

ACTION:

① Pull out the O-ring from the nozzle and clean inside the nozzle with an air blower.

② Insert a new O-ring into the nozzle from its rear end.

③ Push the O-ring against the bottom inside the nozzle.

④ After the new O-ring has been set in place, attach the nozzle to the head and check for nozzle

clogging.

)

Checking the nozzle for clogging

NOTE: Do not apply silicon grease or the like to the O-ring since it may cause nozzle clogging.

■ Nozzle Filter

The nozzle filter prevents dust from getting inside the nozzle. It also prevents the escape action malfunction

caused by the dust. Periodical cleaning of the nozzle filter must be performed.

ACTION:

① Clean the nozzle with an air blower from its rear end.

NOTE: Normally, cleaning with the air blow may be enough. But when the dirt is firmly fixed, remove the O-ring

and the filter to clean.

NOTE: Nozzles with filter:

P005, P006, P013, P018, P019, P020 and Custom-made nozzles.

Dust and dirt are easily taken in to a nozzle hole with a big-diameter. (1.0mm or more)

Part Name

Part No. Remark

O RING LC1-M77A5-90X

FILTER, NOZZELE 15 LC6-M771Y-00X

REMOVER,O-RING LC1-M861R-01X O-ring removal jig

PIN(O RING) LC1-M8911-10X For inserting O-ring

3 Mechanical Section

3-13

■ Removing O-ring and Nozzle Filter

NOTE: The filter is fixed by the O-ring. It has no right-side up.

① Insert an O-ring removal jig like illustrations below into the nozzle from its rear end.

Jig: Modify a commercially available clip.

Dia.1mm

3mm

30 to 45 degrees

Flatten the pin edge by pliers.

（

t=0.3mm

）

② Insert the pin-edge of the jig between the O-ring and the seating face, and pull it out from the nozzle

(take care not to let the O-ring come off).

Magnified view of O-ring part

Insert the flatten pin-edge between

the O-ring and the seating face.

O-ring

Filter

ACTION:

3 Mechanical Section

3-14

■ Attaching O-ring and Nozzle Filter

ACTION:

① Insert the filter with tweezers and adjust the position of the filter using the O-ring insertion jig.

Correct Incorrect

② Set the O-ring at the tip of the nozzle and push it slowly using the O-ring insertion jig to the bottom of

the nozzle.

③ Remove the jig slowly.

④ Check that the filter and the O-ring have been set in place correctly.