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7 operation, 8 maintenance and care, 9 repair and disassembly – Festo DGSL User Manual

Page 8: 10 accessories, 11 troubleshooting, 12 technical data

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7

Operation

Warning

Make sure that in the travel range of the drive
– Nobody can reach into the path of the movable

components (e.g. by providing a protective
guard).

– There are no foreign objects (e.g. hexagon

wrench when setting the end position under
pressure).
It must not be possible to touch the drive until
the moveable mass has come to a complete rest.

Fig. 26

8

Maintenance and care

Cleaning:
• Exhaust the DGSL.
• Clean the DGSL only with petroleum ether.
• Lubricate the following components of the DGSL:

Component

Ungreased surfaces of
the piston rod

Roller bearing of the
slide

Lubrication interval

As required (e.g. after cleaning), otherwise the DGSL is
maintenance-free

Reason for lubrication

Humidity protection and
gliding quality

Gliding quality

Lubricating point

Piston rod

Guide rail

Lubricating procedure

Push the slide backwards and forwards by hand when
lubricating (even distribution of grease)

Lubricating grease

LUB-KC1 from Festo (

Spare parts catalogue at www.festo.com)

Fig. 27

• Check to see if more frequent lubrication is required. This may be the case with:

– High temperatures
– strong accumulation of dirt
– fat solvent fluids or vapours in the vicinity.

• Check the cushioning components

1 every 2 million cycles for signs of wear

(e.g. abrasion, oil leakage, ...).

• Replace the cushioning elements if there are signs of wear, at the latest after

every 5 million cycles (keep clamping component in a safe place when dismant-
ling the DGSL).

9

Repair and disassembly

• Exhaust the complete system and the device.
• Recommendation: Send the product to our repair service.

This way, the fine tuning and tests that are required will be taken into particular
consideration.

Note

In particular, attempting to repair the slide guide yourself is strongly discour-
aged.

• Information about spare parts and aids can be found at:

www.festo.com/spareparts.

To replace the integrated cushioning components

1:

• Observe the section “Precision adjustment of the

end positions” in the chapter “Commissioning”.

Fig. 28

aE

Proceed as follows:
1. Loosen the clamping component

aE on the cushioning component (clamping

component can fall out).

2. Replace cushioning component (

Accessories at www.festo.com/catalogue).

– DYEF-S-…-Y1

at DGSL-…-E

– DYEF-…-Y1

at DGSL-…-P

– DYEF-…-Y1F

at DGSL-…-P1

– DYSW-…-Y1F

at DGSL-…-Y3

– DYSW-…-Y1F

at DGSL-…-Y11

3. Carry out the precision adjustment of the end positions (

6 Commissioning).

10

Accessories

Note

• Please select the corresponding accessories from our catalogue

(

www.festo.com/catalogue).

11

Troubleshooting

Malfunction

Possible cause

Remedy

Uneven movement of the
moving mass

One-way flow control valve not
installed correctly

Check the flow control
functions (supply or exhaust
air flow control)

Bearing surfaces dirty

Clean the bearing surfaces

Hard impact at the end posi-
tion

Speed too high

Reduce speed

no or too low cushioning

– Adjust shock absorber/

fixed stop again (

6.1 Pre-

paration of commissioning)

– Reduce speed
– Check and, if necessary, re-

place cushioning compon-
ents

Missing air cushion

Simultaneous pressurization
of both compressed air supply
ports with subsequent ex-
hausting of one side

Shock absorber defective
(only for DGSL-…-Y3)

Replace shock absorbers
(

9 Repair and disassembly )

Effective load too large

Reduce effective load

Slide in initial position despite
pressurization

Tubing connection error

– Check blanking plug
– Checking the tubing con-

nection

The slide speed is too low

– Pressurization cross-sec-

tional area too small

– Flow control valves set in-

correctly

Check pressurization cross-
sectional area and adjustment
of throttle

Fig. 29

12

Technical data

DGSL

4

6

8

10

12

16

20

25

Design

Double-acting drive with yoke kinematics and ball-
bearing cage guide

Mounting position

Any

Cushioning

E/P

Flexible cushioning, without metal end stop, both
ends

P1

Flexible cushioning, with metal end stop, both ends

Y3

With progressive shock absorber,
both ends

Y11

With progressive shock ab-
sorber, both ends

N

Without cushioning

Operating medium

Compressed air in accordance with
ISO8573-1:2010 [7:4:4]

Operating pressure

[bar]

2.5 … 8 1.5 … 8

1 … 8

Pneumatic connection

M3

M5

G

x

N

M5 suitable for
10-32 UNF

x NPT

Impact energy in the end
positions

E/P

[Nm]

0.015

0.05

0.08

0.12

0.25

0.35

0.45

0.55

P1

[Nm]

0.005

0.02

0.03

0.04

0.06

0.12

0.2

0.25

Y3

[Nm]

0.5

1

2

4

7

10

Y11

[Nm]

0.5

1

2

4

7

Theoretical force
at 6 bar

Advance [N]

17

30

47

68

121

188

295

483

Return

[N]

13

23

40

51

104

158

247

415

Max. permissible forces
and torques

Catalogue specifications:

www.festo.com/catalogue/dgsl

Max. speed

[m/s] 0.5

0.8

Repetition accuracy

E/P

[mm]

0.3

P1/Y3/
Y11

[mm]

± 0.01

Ambient temperature

[°C]

0 … 60 (observe temperature range of proximity
sensors)

Note on materials

Free of copper and PTFE

Information on material

Housing, cover, yoke plate

Anodised wrought aluminium alloy

Screws

Steel

Piston rod, slide, adjusting screw

High-alloy stainless steel

Cover, stops, driver

Beryllium bronze, nickel-plated

Buffer

Nitrile rubber

Seals

Hydrated nitrile rubber, polyurethane

Weight

[kg]

Min. stroke

0.08

0.16

0.24

0.4

0.6

0.9

1.5

2.5

Max. stroke

0.1

0.23

0.45

0.8

1.5

2.0

4.3

6.1

Fig. 30