Festo DNCKE 40 Serie Notice D'utilisation page 38

DNCKE/KEC
WARNING
Unexpected movement of components.
Injury due to impact or pinching.
• Make sure that there is a balance of forces acting on the operating cylinder's piston.
There is a danger of the piston rod advancing suddenly when it is loosened due to
axial force (weight force) applied, especially with vertical installation.
Note
• Observe the following points:
– The test force (test pressure) must equal at least the force (pressure) acting in
the application or be specified in the application's risk evaluation.
– The test force must not be greater than the maximum static holding force
(è 13 Technical data).
– The piston rod must not slip through during a testing period of 60 s. Remedy in
case of slipping: readjust the clamping unit (è 6.2 Adjustment of the clamping
unit).
Horizontal mounting position
Case 1: without additional weight force:
Size
Test force F
P
Tab. 6
Static functional test
Place the piston rod in the returned end position.
Exhaust port (2 è Fig. 1). The clamp is active.
Pressurise cylinder chamber of the DNCKE in the advancing direction at P = 10 bar while simultan­
eously exhausting the cylinder chamber in the returning direction. Test force for testing with KEC
è Tab. 6.
The test force (test pressure) should be acting for 60 s. During this time, the piston should not move
any further.
Tab. 7
38
P
Fig. 21
KEC 16
[N] 1300
Festo – DNCKE/KEC – 1606a English
20 25
3200 8000