Festo DHTG, Operating Instructions Manual

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DHTG
14 Festo – DHTG – 2018-02e English
Replace the shock absorber when it shows one of the following signs of wear, or every 10 million
strokes at the latest.
Check whether lubrication/testing must be carried out more frequently.
This may be necessary in case of:
– High temperatures
– Excessive dirt
– Fat solvent fluids or fumes in the vicinity.
9 Dismantling and repairs
Recommendation: Return the product to our repair service for overhaul.
The necessary fine adjustments and tests will then be taken into account.
Information about spare parts and aids can be found at: www.festo.com/spareparts
Switch off the power supplies:
– Operating voltage
– Compressed air
Exhaust the system and the product.
Replacing the integrated
shock absorber
:
1. Unscrew the flow-control screw
aJ
.
2. Unscrew the fastening screws (M) on the sub-base.
3. Using pliers, remove the retaining ring on the shock absorber.
4. Replace the shock absorber.
5. Fit the individual parts again in reverse sequence (tightening torque
è
Tab. 16).
(M)
aJ
Fig. 13
Tightening torque
Size 65 90 140 220
Flow control screw
aJ
[Nm] 1.5 1.5 5.5 5.5
Fastening screws (M) [Nm] 2.9 2.9 9.9 9.9
Tab. 16