Festo DSBC Series, Repair Instructions

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37 / 56 Festo 7DSBCa_en
4.6 Repairing the ISO cylinder DSBC-…-T1 / T4 / A1 and DSBC-...-L / U / L1
4.7 Requirements
– Preparatory work has been completed (

Chapter 4.1 on page 26 ).
– Visual inspection has been performed (

Chapter 4.2 on page 26 ).
4.7.1 Validity
This chapter applies to the repair of the following versions of the ISO cylinder:
– DSBC-…-
L
– DSBC-…-
U
– DSBC-…- L1
– DSBC-…-
T1
(without feature “A6”)
– DSBC-…- T4 (without feature “A6”)
– DSBC-…-
A1
The different versions and features of the ISO cylinder are explained in Chapter 2.3 on page 11 .
The following repair steps describe and show the ISO cylinder with single-ended piston rod.
Differences in the
ISO cylinder with through piston rod (DSBC-…-T) :
• Note the differences shown in the components list (

Chapter 3.2 on page 20 ).
• Take into consideration the following for the repair steps:
– Instead of threaded coupling: Rear piston rod
– Instead of end cap: Rear bearing cap
– Also replace the scraper ring in the rear bearing cap.
4.7.2 Structure of the bearing cap
The bearing and end caps of the various sizes and versions differ and can differ from the illustrations shown in
the following. Before each repair, the parts lists of the online spare parts catalogue on the Festo website must
be used to determine the precise type of bearing and end cap and must be taken into consideration in the repair
(

www.festo.com/spareparts ).
1
2
3
4
6
5
7
Illustrated: DSBC-32-…-PPV-…-T1 / T4
1 Bearing cap
2
Holding disc (only DSBC-32 … 63)
3 Buffer seal (only DSBC-…-PPV / PPS)
4
O-ring
5 Scraper ring with metal insert
6
Circlip
7 DSBC-…-T1 / T4 and DSBC-…-L / U / L1: Bearing (metal).
Not illustrated: DSBC-…-A1: Bearing (plastic).