Generic Battery Mantel Clock

A battery clock returns to the mantel.

A friend of the family was very upset that her mantel clock had decided to stop and despite changing the battery, it refused to start ticking.

FixItWorkshop, Worthing, May’19, Clock.

Now, this clock was not an expensive item, but it matched the décor of the room it was in and so the owner was very keen for it to be returned to its place above the fire.

Battery clocks like this are ubiquitous and often, like this one, don’t even carry a makers’ brand logo or name.  I was thinking; if the clock’s motor was unsavable, I would replace it using a generic replacement from eBay.

I’ve fixed many battery powered quartz clock motors.  They all work in a similar way.  An electromagnet which is pulsed using a simple circuit, regulated by a quartz crystal.  Add-in some gears and pointer hands and you’ve got yourself a clock.

After removing clock motor from the housing, just two screws, the motor comes apart by peeling back two plastic tangs.  Care should be taken not to force anything at this stage as the parts are very small and delicate.

The motor gears and electromagnet out of the way, the printed circuit board popped out and the fault became clear.  At some point in the past, I suspect that a battery had leaked just a little and the vapour from the leak had corroded the contacts.  A little dab of contact cleaner on an old toothbrush and a little bit of scrubbing and the corrosion was gone.

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A little bit of jiggery pokery again and the motor was back together and refitted to the clock’s frame.  It just goes to show that something as simple as this can be fixed with basic tools and patience.

Job done!

Cost of replacement:  N/A.  Cost of repair:  Just 30 minutes tinker time and a cuppa.

Vedette Wall Clock ne marche pas

A little repair on a French wall clock

This lovely wall clock had been running perfectly fine until a friend of mine decided to move it temporarily from the wall, during a recent bout of home decorating.  Now, I’m no expert on French wall clocks, but we think this one is circa 1920s or 30s, but either way, it’s a lovely thing to have in the house.  This one is also fitted with Westminster chimes, so one assumes it was made for the English market as an export item, all those years ago.

FixItWorkshop, Jan’18, Vedette Wall Clock (French)

Once the paint had dried, the owner decided to re-fit the clock to its hook on the wall, but it simply didn’t run, even when fully wound-up.  Strange, what had happened?

Having a quick look at the front of the clock revealed nothing much.  The pendulum was where it should be and appeared to swing freely, as a pendulum should, but there was a slightly strange ‘double-click’ tick-tock, indicating something wasn’t right.  Clocks of this type should emit a definite even tick – tock -tick-tock.  This one wasn’t. Hmm.

Before going to see the clock, I had already decided that the small spring that suspends the pendulum could have been broken, so I packed a few spares I happened to have, just in case.  Opening up the mechanism revealed that the spring was actually intact, not bent or warped and therefore perfectly serviceable.  It was fairly obvious almost immediately that the small clasp which secures the pendulum to the escapement lever was bent and the probably cause of the problem.  All that was needed was a small amount of tinker-time to fix that with a small pair of pliers.  However, that wasn’t the end of the story.  Having undergone a ham-fisted removal from the wall, the escapement pendulum lever was now in a slightly different position and some more fettling was required to get the clock back ‘in-beat’, a common requirement on this mechanism type and often the reason why a clock won’t run, even when fully wound.

As the clock mechanism was out of the main casing (see photo) I decided to prop-up the mechanism on two tins of beans to allow the pendulum to hang over the side of a level table.  This allowed me to access to the clock’s mechanism and hear what was going on clearly.  A slight adjustment on the main pendulum lever to the right on this mechanism and the clock was back ‘in beat’, keeping good time.

After giving the case a general clean up and polish, I refitted the clock mechanism back inside it and hung the whole thing back on its hook, back where it belonged, on the wall.

Cost of a replacement: Sky’s the limit. Cost of repair; 1 cup of tea and 1 chocolate digestive.

Turning back time: Bentima mantelpiece Westminster chimes clock

A little clock repair

Someone got in touch regarding a family heirloom clock that wasn’t running.  The Bentima clock itself was in good overall condition and considering its age, had been in the same family for a couple of generations or so.  The owner really missed the clock ticking and chimes on the hour.

FixItWorkshop, Sep’17, Bentima mantelpiece clock.

Access to the clock’s mechanism is pretty straightforward on this type of clock as there’s a simple wooden door on the back with a catch.  Opening up that door reveals a weighted pendulum with escapement above.  It was clear that someone, at some point, had replaced the pendulum spring and that all that was probably required was a minor adjustment to make the ‘tick match the tock’, or in other words, get the clock back ‘in beat’…tick-tock-tick-tock-tick-tock… evenly spread.

FixItWorkshop, Sep’17, Bentima mantelpiece clock, mechanism.

On this mechanism, all that was needed was a level surface and a small flat-bladed screwdriver to slightly move the pendulum pivot point. Once running, a small adjustment to slow-down the running was needed (time was too fast), but this was easily adjusted using the knurled screw on the pendulum.  I recommended that if a flat level surface at home couldn’t be found, 1 penny pieces could be used under the clock’s feet to restore balance.  A nice little repair.

Cost of a clock like this:  Check eBay.  Cost of repair; my time.