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Festo 7CRHDb_en
Warning
Check the plain bearing in the bearing cap for visible damage that might
impair its function, such as deposits and scoring. The entire bearing cap
must be replaced if the plain bearing is showing signifi cant damage.
•
Remove any residue of the screw locking agent from the threads of
the bearing and end caps.
•
Clean the seat of the piston rod seal
1
.
•
Clean the seat of the O-ring
2
.
•
Clean the seat of the cushioning seal
3
.
See chapter
5.1 "Cleaning"
.
1
2
3
•
Grease the new piston rod seal as follows:
Area
Greasing
1
Grease reservoir
1)
for piston rod
Fill 2/3 with grease
2
External surface for bearing cap
Thin fi lm
2)
3
Grease reservoir
1)
for bearing
Fill 2/3 with grease
1)
See chapter
5.2.3 "Grease reservoir"
2)
See chapter
5.2.2 "Thin grease fi lm"
1 2 3
•
Insert the piston rod seal into the bearing cap using an appropriate thrust
piece.
Note
Note the mounting direction (individual sealing lips facing out).
•
Compress the retaining ring (e.g. using a pair of pliers) and place it on
the piston rod seal.
•
Grease the new O-rings and insert them into the groove in the bearing and
end caps.
• Apply a thin fi lm of grease to the new cushioning seals on the front side of
the sealing surface and insert them into the bearing cap and end cap.
