Presentation on theme: "Pedestrian Gate Electric Strike Maintenance Source location on Dell E510 Computer. C:\Documents and Settings\Michael\My Documents\__F-Xfer\Rentals_Tenants\JASMINE\ARCHITCT\Intercom."— Presentation transcript:
Pedestrian Gate Electric Strike Maintenance Source location on Dell E510 Computer. C:\Documents and Settings\Michael\My Documents\__F-Xfer\Rentals_Tenants\JASMINE\ARCHITCT\Intercom Applies to electric strikes on front and rear of 3532 Jasmine, and front of 3717 Vinton. Vinton strike is a 16 V ac buzz model. Drafted June 2011, Michael Ernstoff
Electric Strike & Retractable Bolt Retractable bolt when new. Top Views looking down. Retractable bolt when new. Electric Strike Electric Strike Electric Strike Electric Strike Electric Strike When gate is closed, electric strike cam prevents rotation. When gate is unlocked, cam allows strike to rotate. However, if strike has gotten wedged between soft-key blocker and bolt, strike can’t rotate. The fix is to trim down the soft-key blocker so stike cannot get wedged between it and the bolt. separation If separation is OK, strike hits curved part of bolt and forces it to retract & clear strike. If separation is too small, strike hits flat part of bolt and it will not retract. Separation to small Flat part of bolt Retractable bolt after modification Retraction Door closing
Softkey blocker length trimmed back The “D” shaped soft-key blocker is supposed to be pushed in when the door is closed When it is pushed in, the main bolt cannot be pushed in by sliding a credit card into the gap in the door jam. When mated with a wedge shaped electric strike, the door often closes past the point where the soft-key blocker is depressed, as shown in second sketch from left on bolt diagram, hence defeating its purpose. More important, the edge of the electric strike often gets jammed between the soft-key blocker and the main bolt, preventing the electric strike from rotataing. In the photo, the “D” shaped soft-key blocker or soft-keying inhibitor has been cut back so the edge of the rotating electric strike can’t get wedged between it and the main bolt. All works well when the bolts are new, but as thiing wear, the fit gets sloppy and the distance between the soft-key blocker and the main bolt increases.
Electric Strike Shim A 1/8th inch thick piece of aluminum (yellow arrow) has been inserted between the mounting plate and the case of the electric strike, pushing the strike deeper into the door frame. The strike can be pushed out away from the post by moving the shim from the shown location to that indicated by the purple box. Removing the shim moves the strike closer to the mounting plate. Inserting the shim behind the mounting plate, moves the mounting plate away from the post. Lock-tite should be used on the mounting plate screws so they do not come loose. Lock tite should used very sparingly, if used at all, on the screws that hold the body of the electric strike to the mounting plate to prevent it from getting into the pivot points. Similarly, care should be taken to keep paint away from the mechanism. The Jasmine front gate electric strike is a 24 V dc silent strike. It is a special order item that costs nearly $100. Treat it with care. As the moisture content of the soil changes from summer to winter and back again to summer and back to winter, the soil expands, then contracts, then expands. As it does so, the gate moves laterally, sometimes as much as half an inch. When the swing gate moves towards the fixed post, the electric strike must be moved into the post to assured that contact, on closing, is made on the curved portion of the bolt. ( see right hand most sketch). When the gate moves away from the post, the shim may have to be removed, so the electric strike catches the bolt. An additional brace is being added across the top of the front gate at Jasmine to inhibit changes in gate to post spacing, but even with the brace, the spacing is likely to change over time. See next page for Metric Thread Notes.
Mounting Screws METRIC - The body of the electric strike is fastened to the mounting plate with two, 6 x 1 metric machine screws. The mounting plate is fasten to the gate post with stainless steel screws having an English thread, I believe