YSM40 Mainte_E - 第136页
4-1 1 4 Long-term inspection and other maintenance 5 Replace the O-rings. 1. Remove the connecting pipe from the head covers. 2. Replace the O-rings (4 pieces) on the connecting pipe with new ones. At this point, apply g…
4-10
4
Long-term inspection and other maintenance
4.2 Removing the parts subject to wear
4.2.1 Removing the head cover and cylinder
1
Remove the panel.
Use a Phillips screwdriver to remove the
screws that secure the panel.
53421-N5-00
2
Place the pump upright.
Place the pump in an upright position so
that the head whose parts are to be
replaced is at the top.
53422-N5-00
3
Remove the mounting bolts.
Use a hex wrench to remove the four bolts
(M6×L30) each securing the left and right
head covers (remove a total of 8 bolts).
4
Remove the head covers.
Remove the head covers along with the
connecting pipe.
53423-N5-00
Removing the panel
Step 1
Panel
Placing the pump upright
Step 2
Head whose parts are to be replaced
Removing the head cover
Step 3, 4
Hex wrench Head cover Mounting bolt
4-11
4
Long-term inspection and other maintenance
5
Replace the O-rings.
1. Remove the connecting pipe from the
head covers.
2. Replace the O-rings (4 pieces) on the
connecting pipe with new ones. At this
point, apply grease to the entire surface
of each new O-ring.
53424-N5-00
6
Put a mark.
Before removing the cylinder, put a mark on
the casing and cylinder with an oil-based
marker pen to indicate the reassembly
position.
53425-N5-00
c
The pump will break down if the cylinder is reassembled
the reassembly position.
7
Raise the cylinder.
Wear gloves and slowly turn the fan upward
to raise the cylinder.
8
Remove the cylinder.
c
of the cylinder installation surface.
53426-N5-00
Replacing the O-ring
Step 5
Connecting pipe
Head cover
O-ring
Marking
Step 6
Oil-based marker pen
Removing the cylinder
Step 7, 8
Cylinder
Fan
4-12
4
Long-term inspection and other maintenance
4.2.2 Removing the pressing plate and cup packing
1
Put a mark.
Using an oil-based marker pen, put a mark
on the pressing plate at the position of the
mark on the casing.
53427-N5-00
c
The pump will break down if the pressing plate is
mark to indicate the reassembly position.
2
Remove the pressing plate.
Always wear gloves and use a Phillips
screwdriver to loosen the four mounting
screws (M5×L12). Then remove and clean
the pressing plate.
3
Remove the cup packing.
53428-N5-00
4.2.3 Removing the cylinder parts
1
Remove the parts on the exhaust
valve side.
Use a Phillips screwdriver to loosen the
mounting screw and remove the exhaust
valve pressing plate, exhaust valve, and
exhaust valve backup.
53429-N5-00
c
intake valve pressing plate as they will be reused after
cleaning.
2
Remove the parts on the intake
valve side.
Invert the cylinder, loosen the mounting
screw with a Phillips screwdriver, and remove
the intake valve pressing plate, intake valves
(2 pieces), and intake valve backup.
53430-N5-00
3
Clean the cylinder.
Using a lint-free cloth moistened with a
cleaning solvent, wipe the entire cylinder.
c
put on the cylinder.
Marking
Step 1
Oil-based marker pen
Removing the cup packing
Step 3
Cup packing
Removing the exhaust valve
Step 1
Exhaust valve
Exhaust valve pressing plate
Exhaust valve backup
Removing the intake valve
Step 2
Intake valves (2 pieces)
Intake valve pressing plate
Intake valve backup