MEC-CP842-1.0E.pdf - 第133页
Replacing Consumable Parts >> Replacing the Carrier Clamp/Unclamp Air Cylinder Packings MEC-CP842-1.0E 6-25 5 Use a snap-ring pliers to remove the snap-r ing from the cylinder . 6 Remove the piston rod, and then re…
Replacing Consumable Parts >> Replacing the Carrier Clamp/Unclamp Air Cylinder Packings
6-24 MEC-CP842-1.0E
6.11 Replacing the Carrier Clamp/Unclamp Air
Cylinder Packings
Point
Replace these packings if a carrier air cylinder is not working properly.
Procedure
1 Close the air inlet valve lever and remove the air hose. Next, gradually open the
valve lever to release the air pressure.
2 Remove the 4 bolts to remove the air cylinder from the in- or out-carrier bracket.
3 Disconnect the air hoses and remove the forward limit sensor.
Note Make a note of the air hose connections before disconnecting them, in order to prevent
reconnecting them in the wrong positions.
4 Loosen the locknut at the end of the piston rod (for type A cylinders), and
remove the bolt.
WARNING
Press EMERGENCY STOP before performing this procedure.
C7SM3117
In-carrier clamp/unclamp cylinder
In-carrier clamp/unclamp cylinder
Out-carrier clamp/
unclamp cylinder
Air cylinder
Air hoses
Forward limit sensor
Out-carrier clamp/unclamp cylinde
r
Replacing Consumable Parts >> Replacing the Carrier Clamp/Unclamp Air Cylinder Packings
MEC-CP842-1.0E 6-25
5 Use a snap-ring pliers to remove the snap-ring from the cylinder.
6 Remove the piston rod, and then remove the rod cover from the piston rod.
Note Do not force the rod cover off if it does not slide off the end of the piston rod smoothly.
Remove any burrs from the beveled end with a whetstone or sandpaper.
7 Remove the packings from the rod cover and piston rod.
8 Clean the rod cover, piston rod, and cylinder tube.
9 Apply Daphne Eponex No. 2 grease uniformly to the rod and piston packings,
and then mounting them in the rod cover and on the piston rod.
Note Do not damage or twist the packings when mounting them. Also, the packings are directional,
so be sure to mount them in the correct orientation.
Piston rod
Snap-ring
Rod cover
Locknut
Bolt
Air cylinder
Piston rod
Snap-ring
Rod cover
Bolt
Air cylinde
r
C7SM3118
Type A Type B
Rod packing
Code No. : H14753
Type : MYR-8
Piston packing
Code No. : H14755
Type : COP-16
C7SM3119
Rod cover
Piston rod
Piston packing
Cylinder tube
Rod packing
㧔Cross-section㧕
㧔Cross-section㧕
Rod cover
Piston rod
Replacing Consumable Parts >> Replacing the Carrier Clamp/Unclamp Air Cylinder Packings
6-26 MEC-CP842-1.0E
10 Apply a thin layer of Daphne Eponex No. 2 grease to the piston rod and inside of
the cylinder tube.
11 Assemble the rod cover on the piston rod, and then insert the piston rod in the
cylinder tube.
12 Use a snap-ring pliers to assemble the snap-ring in the air cylinder.
Note The side of the snap-ring with beveled edges faces the air cylinder.
13 Type A carrier clamp/unclamp air cylinder: Adjust the distance from the end of
the piston rod to the head of the bolt and lock the locknut.
Type B carrier clamp/unclamp air cylinder: Fasten the link bracket on the end of
the piston rod.
14 Temporarily position the forward limit sensor.
C7SM3120
Piston rod
Cylinder tube
Snap-ring
A
ir cylinder
Snap-ring
Cross-section of snap ring
Beveled edge
C7SM3121
Piston rod
Air cylinder
Locknut
Bolt
9 mm
C7SM3122
Type A
Piston rod
Air cylinder
Bolt
Type B