M2series_ServiceManual_e.pdf - 第44页

3 Mechanical Section 3-12 ■ Applying Silicon Grease After the nozzle is cleaned, it must be coated with silicon grease. Apply silicon grease. Nozzle ID sticker Suction pad ● Nozzle outer surface Apply a slight amount of …

3 Mechanical Section

3-11

■ Inspection of Suction Pad (Nozzle No. N017, N018, N019, N020)

Check that the rubber suction pad located at the nozzle tip is free of scratches and cracks. If they are found

on the pad, replace the pad with a new one.

ACTION: Remove the old pad, apply silicon grease to the inner surface of a new pad, and then install it in the nozzle.

NOTE: N020 has a different nozzle structure from those of N017 to N019. Thus, in the case of N020, remove the

pad stopper from the nozzle tip first and then remove the suction pad. After a new pad is installed, make

sure that the pad stopper is re-installed properly.

Nozzle N020

Suction pad

Pad stopper

(Can be removed by turning counter-clockwise

using a flat-blade screwdriver)

Part Name

Part No. Remark

RUBB.PAD17 LG0-M77A0-00X Suction pad for N017

RUBB.PAD18 LG0-M77A1-00X Suction pad for N018

RUBB.PAD19 LG0-M77A2-00X Suction pad for N019

RUBB.PAD20 LG0-M77A9-00X Suction pad for N020

PAD STOPPER M020 LG0-M770U-000 Pad stopper for N020/M020

GREASE SILICON LG0-M89AB-00X Silicone Grease

3 Mechanical Section

3-12

■ Applying Silicon Grease

After the nozzle is cleaned, it must be coated with silicon grease.

Apply silicon grease.

Nozzle ID sticker

Suction pad

● Nozzle outer surface

Apply a slight amount of grease to the outer surface (indicated by dotted lines in the above illustration), and

then wipe it off with a dry cloth.

NOTE: Silicon grease must be applied so that it forms a thin film on the surface.

● Suction pad

Application of oil content is needed to prevent deterioration of the rubber. Apply a slight amount of grease

to the outer surface of the suction pad, and then wipe it off with a dry cloth.

NOTE: Silicon grease must be applied so that it forms a thin film on the surface.

Do not apply excessive amounts of grease. This may cause collection of dirt

or dust in the air passage and on placed components, resulting in component

placement failure.

● Checking the nozzle escape

After grease is applied to the nozzle’s outer surface, attach the nozzle to the head and check the condition of

the nozzle escape.

NOTE: When the nozzle is placed in the head (nozzle holder), it can slide a few millimeters vertically. This nozzle

sliding movement is called nozzle escape.

ACTION:

① Attach the nozzle to the head.

② Push the nozzle gently with fingers up to the top dead center of the nozzle escape.

③ Release fingers gently and check that the nozzle returns to the lower dead center smoothly.

NOTE: If the nozzle escape is not smooth, there may be problems with component suction and placement. If the

nozzle gets caught or does not move smoothly, check the nozzle holder and nozzle’s inner/outer surfaces

for collection of foreign matter or scratches.

3 Mechanical Section

3-13

■ 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:

N004, N005, N006, N013, N018, N019, N020,

Custom-made nozzles

Part Name

Part No. Remark

O RING LC1-M77A5-90X

FILTER LC1-M771Y-10X