Festo ADN Series, Инструкции по ремонту

Страница: 26 / 34

26 / 34 Festo 7ADNc_en
3. Unscrew the hex nut and the washer from the piston rod.
It is advisable to note the order and orientation of the piston components for
assembly of the piston components on the piston rod later.
4. Remove the piston components from the piston rod.
5. Clean the threads of the piston rod and hex nut to remove any locking agent
residue.
6. Replace the components contained in the set of wearing parts.
Note
The position of the slot for the compression spring on the piston must be
noted in the case of the compact cylinders AEN-….
7. Re-assemble the piston components on the piston rod in the correct order
and orientation.
8. Place the washer on the piston rod.
9.
Wet the hex nut with
high-strength
locking agent (LOCTITE high-strength).
4. Tighten the hex nut with the appropriate tightening torque (see Table):
Type Tightening torque
AEN-32 9.2 Nm
AEN-40 13.5 Nm
AEN-50 30 Nm
AEN-63 32 Nm
AEN-80 46 Nm
AEN-100 45.5 Nm
7.4 Inserting the piston rod into the cylinder barrel
1. Clean the inside surface of the cylinder barrel as described in Chapter
8.1 “Cleaning” .
2. Grease the following parts with the grease included in the set of wearing
parts:
Component Greasing
Inside surface of cylinder barrel Apply a thin film
1)
of
grease
Surface of piston rod Apply a thin film 1) of
grease
Piston seal lip rings Apply thin film
1)
of grease on the
outside
Piston surface between lip rings
(grease reservoir
1)
)
Fill 2/3 with grease
1)
see Chapter 8.2 “Greasing”
3. Position the piston flat against the front side of the cylinder barrel.
4. Insert the lip ring in the cylinder barrel by tilting and turning the ring
slightly.
The sealing lip must not fold back against the inside of the piston.
Note
Use a flat, blunt -edged object to insert the lip ring into the cylinder barrel
without damage.
5. Insert the piston fully into the cylinder barrel.