How to Maintain A battery high-powered Quartz clock
How to Maintain A battery high-powered Quartz clock
make sure the metal contacts within the battery holder don't seem to be unsound. The spick-and-span battery you set in won't fix the matter if the metal contacts area unit dirty. If the metal isn't shiny and clean then scrape it exploitation sandpaper (220 grit or there-about can work fine). If you do not have sandpaper then you'll be able to use atiny low flat-bladed screw driver or different 'pointy' metal tool. If this fixes the matter, then you've got gotten off the hook within the best attainable manner.
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Check the static magnet. If the matter still persists, then the Lavet sort motor in your Quartz clock in all probability encompasses a slightly misaligned static magnet, (i.e., the rotor). you would like to maneuver the magnet into the right position. So, you have ne'er detected of this thing? visit Wikipedia.com and skim the article on "Lavet sort stepping motor".
Please note that this text solely shows a super-small stepper motor like is employed in a very wrist-watch. The one in your clock is far larger and easier to figure on. strive to not let yourself be intimidated. it's not that onerous.
Perform a straightforward check to verify that your Quartz clock has this kind of drawback. Lay your clock on a flat table with the face of the clock inform up at the ceiling. See if the used encompasses a drawback wherever it starts and stops or maybe stops utterly. If so, then it's probably that the little static magnet has slipped backwards and is not any longer within the same horizontal plane because the metal of the magnet.
this can be currently the second a part of this straightforward test: Flip the clock over in order that the force of gravity can pull the limited magnet into its correct position. The face of the clock can currently be facing down towards the ground.
If your table is created out of glass then you'll be able to sit on the ground and appearance up through all-time low of the table to visualize if your clock is running properly. Or, you'll be able to simply choose the log up and hold it on top of your head to appear at it. you would like to stay it within the same horizontal downward facing position. If your clock works fine within the downward position however not within the upward position, then you've got a misaligned magnet.
take away the limited black plastic box from the rear of your clock. this can be the box that holds the AA battery within the back and therefore the clock hands on the front. it's known as a stepping-type clock movement. To do this, begin by removing the clear plastic cowl on the front of the clock. it always has three plastic tabs or indents round the outer reaches. See if you'll be able to find wherever these three tabs area unit.
Use atiny low flat screwdriver to softly pry these three tabs loose and take away the clear plastic front cowl.
Gently take away the three clock hands, (the used, the big hand, and so the hour hand). simply pull outward (on one hand at a time) and that they can pop off. place them in a very tiny instrumentation off to the aspect to stay them safe. strive to not drop them on the ground and particularly to not tread them.
On the rear of your clock, there area unit a pair of giant black plastic tabs or hooks that firmly mount the clock movement to the rear of the clock. Gently pry these a pair of tabs outward barely enough to permit you to get rid of the clock movement from the rear of your clock.
take away the battery.
Open up the clock movement and appearance within. to try to to this you would like to get rid of the black plastic cowl on the rear of your clock movement. Be careful. it's three unleash tabs, not 2. there's a hard-to-see tab within the middle of the battery compartment. strive to not break any of those tabs as a result of you would like them to carry your clock movement along. Gently take away the rear cowl and appearance within. If any of the limited white plastic gears have fallen out of their correct position, then place them back.
acquaint yourself with the elements within your clock movement.
See {the little|the tiny|the tiny|the insufficient|the limited|the miscroscopic} board? There area unit a pair of terribly small copper wires that connect this circuit board to a wire coil mounted beneath. strive to not break these wires. they're solely zero.003 inches in diameter and area unit terribly fragile. Please notice that the coil of wire is wrapped around one leg of a comparatively giant "U" formed piece of flat metal. These a pair of items along kind AN magnet.
once current flows within the coil of wire then it makes the iron-alloy metal core become magnetic. there's AN air gap at the open finish of the "U". this can be wherever the limited static magnet goes. Together, these three elements kind a Levat sort motor. The static magnet is made within the form of a toroid, (or donut).
hooked up to at least one aspect of the magnet may be a Pieris rapae plastic gear with teeth on that. it's known as a rotor as a result of it "rotates", (i.e., it spins around in a circle sort of a bicycle tire). there's AN shaft or very little plastic rod that goes at ninety degrees all through the middle of our magnetic toroid. the limited magnet should be lined up right within the middle of the flat metal that surrounds it, (i.e., the electromagnet), alternatively our very little motor does not run all right.
One finish of this tiny plastic shaft for our rotor goes into a trifle hole that is found within the black plastic cowl that you took off. this tiny hole is just too deep! this can be the total drawback. we'd like to scale back the depth of this hole in a very precise manner. Doing therefore can probably alter the clock to figure utterly for several years to return. The difficult question here is "How will we do this? however will we live or somehow verify simply specifically however deep this hole ought to be? conjointly, however will we then stock up all-time low of this hole in a very precise manner, (to within a couple of thousandth's of AN inch)?"
confirm that you've got settled the precise hole within the back cowl that's meant for holding the stepper-motor rotor in situ. Open up the outlet in order that it goes all the manner through. strive to not use atiny low drill. you may scuff the perimeters of the outlet. this might considerably speed up the speed at that these plastic elements would wear out.
suppose it. you would like your clock to last a few years to return. this implies that your very little rotor are going to be spinning in situ and rubbing against the within of this hole day and night for several years. For long life ( ساعت دیواری طرح قهوه ) it's vital that at the places wherever plastic rubs up against plastic that each surfaces ought to be terribly sleek.
No, a drill isn't counseled. The vital issue is that it's created out of hardened steel which the tip. The plastic wall at the rear of this hole is simply concerning 1/64 th of an in. thick. simply pushing on that (from within the hole) with the proper style of sharp, pointy metal tool can poke a hole all the manner through.
the precise size of this hole could vary from manufacturer to manufacturer, therefore it's within the vary of zero.025 to 0.050 inches in diameter. Once you have poked a hole through the rear wall from the within, then flip the rear cowl around and clean it up from the surface. you would like the outlet to be nicely opened-up in order that you'll be able to get at it from the rear, (while the clock is running in a very face-down position).
you're about to place glue down this hole, a special style of glue. it's known as "Plastic Fusion" and you get it at a store for HVAC known as Grainger's. (Do a Google search on the net to seek out close toest|the closest} Grainger's store near you.
Also, you would like smart air ventilation as a result of the fumes from this glue area unit cytotoxic. scan the cautions on the rear label.) it's a 2-part glue and is incredibly thick. you would like the glue to fill the top of this hole no end the rotor from spinning. Use automobile gas on the tip of the rotor shaft shaft in order that the glue wouldn't continue the rotor and it'd be unengaged to keep spinning. it's vital that the clock run and keep running the total time that this glue is drying.
you would like the glue to stay to the rear cowl of your clock movement however to not the rotor itself. to try to to this you would like to take care to not place oil on the surface of the rear cowl close to the outlet. However, you are doing need a touch of oil down within the hole on the tip of the rotor shaft shaft. The safest thanks to management wherever the oil will and does not go is as follows. Before swing the rear cowl on, dip the tip of the rotor shaft shaft into a trifle gas. Wipe off most of the oil by gently touching it to a clean, dry surface many times. Use the table prime of my work bench. place the rotor back within the motor.
Be terribly careful that the shaft shaft of the rotor is inform straight up and down and not off to the aspect a trifle bit. The rotor itself may be a very little magnet and therefore the metal it sits next to is additionally slightly magnetic. the key to creating the rotor get on my feet straight is to rotate it by forty five degrees or ninety degrees in order that its own field of force is correctly aligned with the residual magnetic fields of the 2 items of metal on either aspect of the rotor. simply play with it, you will get it. If the rotor shaft shaft isn't straight up and down once you place the rear cowl on, then you may break one thing, (the very little shaft socket towards the front of the clock). it's attainable to repair a possibility like this however it's terribly finical. simply take care and do not break it, OK?
Gently place the rear cowl on whereas keeping the clock movement in a very face-down position. Oil could try and start up the outlet. Gently dab it off to stay the encompassing space dry. you will like better to highly to|favor to|opt to} use one thing more applicable, sort of a rag or tissue.
place the battery within the clock in order that it runs. you will need to briefly place the used back on the clock to verify that it's running properly whereas in a very face-down position. Take the used off once more as a result of it gets within the manner whereas you're attempting to try to to the gluing. strive exploitation spool of solder (because it's a hole within the middle), as an area wherever you'll be able to set the clock movement down in a very face-down position. you will have another item, (such as a trifle wood board with a hole in it), that's convenient for you.
misunderstanding your 2-part glue and gently push a trifle little bit of it down the outlet. This last half is additional art than science. Use your best judgement. it's higher to err on the aspect of deficient glue down the outlet instead of an excessive amount of.
place an enormous chunk of glue (~ 1/3 in. in diameter) round the whole space. the limited chunk of glue down the outlet has nothing to stay to owing to the oil. What holds it in situ is that the massive chunk of glue. it's vital that the clock keeps running for the total time that the glue is drying. It takes the glue concerning AN hour or a pair of to dry.
