Relating to Standard Lock, KF2
Is it possible to adjust the stroke length of the KF2 spring, or must I always use 100% of the nominal stroke ±0.5 mm?
KF2 - Adjusted Stroke Lengths
There are two versions of the KF2 Controllable Gas Spring, the standard model KF2 and an adjustable model KF2-A. For more information on the adjustable model, see Technical Data 10.5/2 (Chapter 10 in the main KALLER Catalog).
How fast can the KF2 spring be stroked?
KF2 - Maximum Stroke Frequency
The maximum stroke frequency (spm) at which a KF2 spring can run depends on the stroke length of the spring and level of cooling. See Cooling (optional) 10.4/5 (Chapter 10 in the main KALLER Catalog) for more information.
What can I do to eliminate KF2 springback?
If you are using 100% stroke length ±0.5 mm of the KF2 spring, a max 1 mm of spring back can be expected. It is possible to eliminate this at anytime by converting the Standard Lock into a Positive Lock System.
For more information or support, please contact your local KALLER distributor (link) or KALLER Technical Helpdesk (link).
Can I lock a KF2 Controllable Gas Spring at any position?
Locking a KF2
Basically yes, but the less you stroke the KF2 Controllable Gas Spring, the greater the springback will be.
For more information or support, please contact your local KALLER distributor (link) or KALLER Technical Helpdesk (link).
Troubleshooting Standard Lock System, KF2
|
System |
Problem |
Solution |
|
Standard Lock, KF2
|
KF2 spring does not lock |
Make sure the KF2 spring’s Air Port 4 has minimum 4 bar air pressure before press BDC. |
|
Check that all hose connections are correct |
||
|
KF2 piston rod’s springback is greater than 1 mm |
Make sure 100% of the KF2 spring’s nominal stroke length ±0.5 mm is used. |
|
|
Make sure the KF2 spring’s Air Port 4 has minimum 4 bar air pressure before press BDC. |
||
|
KF2 piston rod does not return
|
Make sure the KF2 spring’s Air Port 4 has zero air pressure when required to open. |
|
|
Check for any obstructions in the tool preventing piston rod returning. |
||
|
Check that there is gas pressure in the KF2 spring. |