HINTS&TIPS OPEN ENDED LEVERS In this case on an ERA invincible lock again using my favoured CB RPCP.
Te Entire ERA range pre fortress
locks , use these
standard type open ended levers , as do locks such as WMS/Avocet. For this exam- ple i use the ERA Invincible Lock. To start , lets look at a typi-
cal high and typical low lift open ended lever used in the ERA Invincible Lock:
Whilst maintaining your
very light tension , position the pick wire underneath le- ver 1 nearest the cap, and lift gently until the pick tip makes contact with the lever without lifting it at all, as pictured be- low;
High
the anti picks, we know that high lifts sit at just above the 9 o clock position, to reach the gate we must lift the high lift to the gate, the gate will be at ap- prox 11 o clock on the thumb turn. Te low lifts only need picking a few mm , so rarely need lifting further than just above the 9 o clock position of the thumb turn. It is very important to lift
You will notice that as with the H Gate levers mentioned earlier , high lift levers above have an anti pick notch in the top fence , and a low lift lever below only has an anti pick notch in the bottom fence. Again a low lift lever will re- quire lifting at least 8mm to engage a bottom fence anti pick. ERA levers like legge levers
, have some very very low lift levers in many of their differs, so again the low lift lever pro- cedures discussed at the be- ginning of this article should be used. So as with any lock , we
need to identify the location of the high and low lift levers within the lock , you could use the same process as is used with the H Gate levers used on the union lock, however , a much swifter process for identifying your high and low lift levers exists for these open ended lever locks. Tis is where the unique
design of the CB RPCP thumb turn is used to good effect , we must begin by inserting the pick and wire and applying a very light tension , as pictured below;
and set the high lift levers first , and to pick the low lift levers last , this way you avoid the anti picks, if you pick a high lift lever last, it will enter the anti pick prior to reaching the gate. So it is crucial to pick and
Low It is by touching the lever
belly in each position, and noting the position of the thumb turn for each lever. For a high lift lever , the thumb turn will sit in a position vis- ibly above the 9 position of a clock face , for a low lift le- ver the thumb turn will sit at exactly 9 o clock or below 9 o clock as in the pictures be- low;
set the high lift levers first , then pick the low lift levers last, ensuring that the last le- ver picked is always a low lift, as below;
High Bearing in mind that for a High
high lift lever the thumb turn will sit above the 9 o clock po- sition , and for a low lift lever the thumb turn will sit at 9 o clock or below 9 o clock posi- tion , we can see from the de- code above that working from the cap from lever 1 , the lock decode is , High, Low, High, Low and
High. We are now ready to pick
Low 70 • NOV/DEC 2011 •
WWW.KEYZINE.CO.UK
the lock open, to achieve this we must lift the high lifts past their anti pick to the gate, and we must pick the low lifts lower than 8mm to enter their gates without reaching
2nd high to 11 o clock Continues... 1st high to 11 o clock
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