YSM20_YSM20W_Mainte_E.pdf - 第88页

3-30 3 Periodic maintenance items 5 Apply the new grease b y hand. Apply as much as 2 cm of new grease to finger and rub it evenly into the ball screw grooves. 6 Spread the grease. e 1. Press the emergency stop button an…

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3
Periodic maintenance items
3.7 PU-axis
The PU (push-up) axis is designed to prevent flexing or warping of the board during clamping and is important
because it prevents depressing of the board during component mounting.
The PU axis also prevents deviations in the component mounting accuracy due to the board depressing during
component mounting, so it is important to regularly clean and inspect the PU axis to ensure it operates
correctly.
c
CAUTION
If trouble occurs with the PU-axis, contact YAMAHA sales representatives. The disassembly and cleaning of the
machine made by the customer is beyond the coverage of the warrantee.
3.7.1 Cleaning and lubricating the PU-axis ball screw
1
Prepare for work.
Take off all accessories susceptible to the
magnetic fields, such as a wristwatch and
magnetic ID card.
2
Change the conveyor width to
maximum width.
1. Press the [Width] button on the [Unit]
- [Conveyor] screen to display the
"Conveyor Width" screen.
2. Enter the maximum width in the "Target
Width" box and press the [OK] button.
The conveyor width is changed to the
specified width.
n
NOTE
The maximum conveyor width varies depending on the
machine type as follows.
YSM20 Dual-stage type: 490 mm
YSM20 Single-lane type: 490 mm
YSM20W Single-lane type: 742 mm
Regarding Dual-lane type, enter the maximum width of
lane 1 or lane 2 aligning the lane to be lubricated.
"Maximum width for one side lane"
YSM20 Dual-lane type: 410 mm
YSM20W Dual-lane type: 662 mm
3
Raise the push-up unit.
1. Press the [Push-up] button on the stage
or lane to perform grease up to display
the “Conveyor Push-up” screen.
2. Enter “0.1 mm” in “Thickness” box and
press the [OK] button. The push-up unit is
raised.
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4
Remove the old grease.
1. Press the emergency stop button and
then open the machine safety cover.
2. Detach the carriage if the machine is the
carriage type, .
3. Wipe off the old grease on 2 ball screws
with lint-free cloth.
Changing the conveyor width
Step 2,3
Step 3Step 2
54310-N2-00
Cleaning the ball screw
Step 4
Cleaning cloth
Ball screw (2 places)
Dual-stage
Dual-lane
53374-N2-00
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Periodic maintenance items
5
Apply the new grease by hand.
Apply as much as 2 cm of new grease to
finger and rub it evenly into the ball screw
grooves.
6
Spread the grease.
e
1. Press the emergency stop button and
then open the machine safety cover.
Attach the carriage if the machine is the
carriage type.
2. The push-up unit moves down by pressing
the [Push up] button.
3. Move up and down the push-up unit
several times to spread the grease. After
spreading the grease, put the push-up
unit in its up state.
e
7
Wipe away excess grease by hand.
1. Press the emergency stop button and
then open the machine safety cover.
Detach the carriage if the machine is the
carriage type.
2. Remove excess grease by hand.
Applying the grease
Step 5
Ball screw (2 places)
Dual-stage
Dual-lane
Grease
53339-N2-00
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Periodic maintenance items
3.8 Air intake fan filter
This machine is equipped with the air intake fan filters (left and right on the front (2 locations), left and right
on the rear (2 locations), 4 locations in total).
If the filters are not cleaned properly, the temperature inside the machine may rise due to filter clogging. Clean
the filters to prevent lowering of the machine function or shortening of the service life.
Additionally, the filter and removing procedures used for the YSM20 differ from those used for the YSM20W.
The following describes both procedures.
3.8.1 Cleaning filters (YSM20)
1
Power off the machine.
1. If the machine is carriage type, detach
the carriage.
2. Exit the software and power off the
machine.
2
Detach the filter cover.
1. As shown in the figure on the right, use a
hex wrench to loosen the mounting bolt
of the filter cover. At this time, it is not
necessary to remove the bolt.
2. Pull out the filter cover obliquely and
forward.
3
Clean the filters.
1. Pull out the filter from the filter cover.
2. Suck both surfaces of the filter with a
vacuum cleaner or vacuum tool to
remove dust.
c
CAUTION
If the moistened filters are used, the dust combines with
moisture and causes clogging. Since it is enough to
clean the filters with a vacuum cleaner, do not wash
the filters with water.
n
NOTE
If dust cannot be removed or the filter has worn out,
replace the filter with a new one.
4
Return the filters to their original
positions.
Attach the filters and cover in the reverse
order of removal.
Removing the filter cover
Step 2
Filter cover
Mounting bolt
Hex wrench (3)
533C5-N2-10
Cleaning the filter
Step 3
Filter
533C6-N2-00