[math]T= 2π √L/g[/math] T →time of a swing of the pendulum L →length of the pendulum g → gravitation acting on the pendulum This results in the length of the pendulum (L) controlling the time of the swing. 1. Also, within the shipping carton will be the Grandfather Clock pendulum packaged in a separate cardboard box. of the back of the clock (image at right is a “cutaway” view). Wind the spring as far as it will go. Hang each weight on the pulley in the proper position as shown. We are wondering how can we put the pendulum back on, its an old clock says made in germany on it, from the 1920's … My boyfriend recently brought a mantle clock at an auction, it was not working properly so he took off the pendulum and unwound it, he tried winding it with the pendulum in but it would not tick, however when the pendulum was off it started ticking. This is a Tempus Fugit Grandmother Clock. Hang the pendulum onto the pendulum leader (see illustration 1). EXAMPLE 1: Consider, in method #2, a clock that came in for repair without a pendulum. Everything pendulum related. If no pendulum is attached, your mantle clock may be regulated by a balance wheel, which is operated by a spring. We cannot figure out how to re-attach the pendulum to the mechanism at the top. It almost seems we are missing … read more Move the pendulum slightly to the left or right and release it gently. STEP 7: Hang the Weights Be sure the hook on top of each weight is tight by turning the hook clockwise. Box 12700 Scottsdale, AZ 85267 U.S.A. Orders: 1-800-552-1520 1-480-483-3711 Fax: 1-800-552-1522 1-480-483-6116 Hours: 8:00 am - … Looking at the table below: dT is the number of minutes gained (+) or lost (-) in 24 hours. Insert it onto the pendulum as shown. 4) Attaching the pendulum. Hook the pendulum in the slot as shown. Hang the pendulum onto the pendulum leader (see illustration 1). Re-attaching the pendulum weight to a rotating mantle clock My grandfather recently gave me an antique mantle clock he's had for a number of years to try and repair. If the clock has a pendulum, swing it by hand gently to one side. (C) Attaching the tail to the pendulum The tail is tucked away in either the top or bottom compartment of the box. STEP 6: Hang the Pendulum Carefully unpack the pendulum. (D) Starting the pendulum After mounting the clock on the wall, ensuring that it hangs perfectly Here are a few things you might want to try yourself prior to calling a clock repairman. When we put it on a test run with a 39 inch pendulum, it lost 1 hr 23 mins in 24 hours. The clock should work after making the spring adjustments. Hang the weights to the bar carefully and be sure that the clock does not shift (see figure 2). Pendulum clocks are generally known to produce a tick-tock sound that can usually be heard throughout the house. Facing the clock, each weight is marked on the bottom Left, Center, or Right. Check to see if the spring is in working order. Pendulum will not swing There are many times a grandfather’s clock pendulum will look like it is swinging just fine; however, if the grandfather clock is not running properly the pendulum will eventually stop, usually in 10 to 20 minutes. If the tic-toc is uneven or the clock stops, follow the "putting in beat" procedure in step 6. 5) Attaching the weights. it's all in good working condition and was tuned a few years ago, however the pendulum has come off the wire it … The pendulum fell off while pulling the chains. 4) Attaching the pendulum. ... Re-attach the hand to the shaft and turn the hand nut finger tight. You should hear an even "tic - toc" sound. Move the Grandfather Clock close to its final location. 5) Starting the pendulum. However, you might stop hearing this sound when the momentum of the pendulum changes or slows. 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