M8_ServiceManual_e.pdf - 第50页
3 Mechanical Section 3-10 Nozzle Holder ● Checking the nozzle holder escape After grease is applied to the nozzle’s outer surface, attach the nozzle to the head and check the condition of the nozzle holder escape. NOTE: …
3 Mechanical Section
3-9
■ Applying Silicon Grease
After the nozzle is cleaned, it must be coated with silicon grease.
● 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.
● Inspection interval
Approx. once a month
Suction pad
Nozzle ID sticker
Apply silicon grease.
3 Mechanical Section
3-10
Nozzle Holder
● Checking the nozzle holder escape
After grease is applied to the nozzle’s outer surface, attach the nozzle to the head and check the condition of
the nozzle holder 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 holder 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 holder escape.
③ Release fingers gently and check that the nozzle returns to the lower dead center smoothly.
NOTE: If the nozzle holder 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.
● Inspection interval
Approx. once a week
3 Mechanical Section
3-11
● Cleaning the nozzle holder
A roller and leaf spring that hold the nozzle may not perform smoothly due to the entry of dust and dirt,
which will cause a nozzle-dropping. Make a periodic check of the nozzle escape. If any *abnormal
conditions are seen, clean the nozzle holder. (*The nozzle stays up and does not go back to its initial
position, or the nozzle drops easily etc.)
NOTE: Please handle the roller and leaf spring inside the nozzle holder carefully, since they tend to get lost. It is
recommended that spare parts should be kept handy and start removal.
roller
leaf spring
pan-head screw
pan-head screw
Side View
Front View
ACTION:
① Unscrew the two screws with a Phillips screwdriver to take the roller and leaf spring off.
② Remove dust and dirt around the area where the roller touches, the roller and leaf spring.
Check to see that there is no flaw in them. ( replace the part with a new one if there is a flaw)
③ Apply the proper amount of Silicone Grease to the roller and the area where it touches.
Put them back in reverse order of removal.
● Inspection interval
When unusual condition is seen by an inspection, or once/twice a month.
Part Name
Part No. Remark
SCREW,BIND.HEAD LC1-M71GN-30X Pan-head screw
PIN,PARALLEL LC6-M71AY-00X Parallel pin
LEAF,SPRING 1 LC6-M714R-00X
LEAF,SPRING 2 LC6-M714S-00X
LEAF,SPRING 3 LC6-M714T-00X
LEAF,SPRING 4 LC6-M714U-00X
NOTE: A life of a leaf spring is approximately five hundred thousand nozzle changes. It should be replaced
periodically.