Festo CRHD Series, Инструкции по ремонту

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13 / 23 Festo 7CRHDb_en
• Push a cushioning boss onto the piston rod.
• Apply screw locking agent (included in the set of wearing parts) all around
the piston rod on the chamfered end.
• Reassemble the piston components in the correct sequence.
• Push the complete piston into the correct position on the piston rod with
one rotation (to evenly distribute the screw locking agent).
• Push the second cushioning boss onto the piston rod.
• Apply the screw locking agent included in the set of wearing parts to
the inside of the threaded coupling and screw it onto the piston rod with
the corresponding torque (see table).
Type Torque
CRHD-32 10 Nm
CRHD-40 20 Nm
CRHD-50 50 Nm
CRHD-63 50 Nm
CRHD-80 60 Nm
CRHD-100 60 Nm
• Apply the grease included in the set of wearing parts to the following parts:
Component Greasing
Surface of piston rod Thin film
1)
Piston surface between lip rings Thin film
1)
Cushioning boss Thin film
1)
on
outside
1) See chapter 5.2.2 "Thin grease film"
4.3.4 Inserting the piston rod into the cylinder barrel
• Clean the inner surface of the cylinder barrel as described in chapter 5.1
"Cleaning" .
• Apply the grease included in the set of wearing parts to the following parts:
Component Greasing
Insert sleeve for piston Thin film
1)
Inner surface of cylinder barrel Thin film
1)
1)
See chapter 5.2.2 "Thin grease film"
• Insert a suitable insert sleeve, which covers the internal thread of
the cylinder barrel, on to the cylinder barrel.
• Insert the piston fully into the cylinder barrel through the insert sleeve.
The sealing lip must not fold back against the inside of the piston.
Note
If necessary use a flat and blunt-edged object to insert the lip ring into
the insert sleeve.