Festo DHTG - Manual (Page 32)

DHTG
32 Festo – DHTG – 1404d 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 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