Micro Mini Scooter tune up

A Micro Mini Scooter gets a little TLC

IMG_0983
FixItWorkshop, Worthing, March’20, Micro Mini Scooter.

I like Micro scooters and I would have loved one when I ‘were a boy’.  My daughters have them and they love zipping along the pavement on them to school.  The scooters handle well and are well screwed together.  They are also well supported from a spares point of view, so I like them even more.

Make and model: Micro Mini Scooter

Fault reported: Back wheel stuck

Cost of replacement: £55

Manufacturer support:  7/10

Cost of parts: £2.00

Hours spent on repair: 30 minutes

Tools needed: Cleaning tools/ cross-head screwdriver/ Allen keys

Sundry items: Silicone spray/ cleaning rags/ PTFE spray for steering

Repair difficulty: 2/10

Cups of tea: 1

Biscuits: 1 custard cream

The scooter in the picture belonged to my friend’s son who’d taken it through one too many puddles I think, as the rain water had taken its toll on some of the scooter’s moving parts.  Over time, the rear wheel’s bearing had suffered excess water ingress, had rusted and had seized.  I’m always amazed at how ‘stuck’ things can get with only a small amount of rust.

This slideshow requires JavaScript.

In their wisdom, Micro have decided to fit their products with generic bearings commonly fitted to skateboards, roller boots, bikes, cars, photocopiers etc, which means that replacement bearings are a doddle to obtain.  I bought some upgraded bearings with better water seals for under £10, so I know that the repair will last longer than the original equipment fitted from the factory.

The front wheels were seemingly fine, so I left them alone. ‘If it ain’t broke, don’t fix it’.

On this model, the rear wheel comes off with one Allen key bolt holding a retaining a stub axel, which slides out with a little persuasion.  The bearings just pop out of the wheel using a small screwdriver as a lever and before fitting new equipment, I always clean the area first to ensure that no dirt is trapped, which could cause premature bearing failure in future.

With the new bearings in, stub axel refitted, a quick wipe down with a strong cleaning wipe, a little PTFE lube applied to the scooter’s steering mechanism and it was ready to see another day.

Bonza.

Horray for Henry!

A Numatic Henry vacuum cleaner gets the kiss of life…

IMG_1545
FixItWorkshop, Worthing, March’20, Numatic ‘Henry’ vacuum cleaner HVA200a (to be exact).

There are times when only no-nonsense suck will do.  Other vacuum cleaners offer the moon on a stick, but rarely live up to the repeated abuse of everyday life.  Henry on the other hand is tough, no-nonsense and above all, reliable.

Reviewers of this kind of thing, seem to agree.

Make and model: Numatic International ‘Henry’ vacuum cleaner HVA200a

Fault reported: Dead/ not running

Cost of replacement: About £130, give or take

Cost of parts: £17.25

Hours spent on repair: 1

Tools needed: Cleaning tools/ cross-head screwdriver

Sundry items: Silicone spray/ cleaning rags

Repair difficulty: 2/10

Cups of tea: 1

Biscuits: 1 bourbon, I think

I have friends in trades who will only buy and use Henry ‘hoovers’ as they last, always work and are easy to use. And above all, who doesn’t like an appliance with a smiley face?

The example in the picture above had been used by a local Worthing taxi driver everyday for the last 15 years without any problems and was in pretty good nick.  The filter was clean and apart from some wear and tear scratches, still looked like the current model.

One day, Henry failed to switch on and after the owner had checked the fuse in the plug, he decided to get in touch with the workshop.

IMG_1546
FixItWorkshop, Worthing, March’20, Henry’s on switch.

The HVA200a has two speed settings, one at 600 Watts power and one at 1200 Watts power, selectable by a red switch and indicated in a red tell-tail lamp.  When plugged in, nothing was happening.

Time to perform surgery.

Opening up Henry’s casing was straightforward and top marks to the designers for creating sensible parts that fit together logically.  Henry is designed to last and be repaired.  All very pleasing.

This slideshow requires JavaScript.

With the lid removed, all electrical checks were made from the plug to the end of the flex, down to the motor.  The flex was in good condition with no snags, shorts or earth faults.  The cable winder on this model is a simple handle operating spindle and was a bit sticky.  The contacts inside the gubbins were also tarnished, so while it was all in pieces, I decided to clean all of the electrical contacts with cleaner and make sure all the sliding parts of the cable winder were clean and had a small dab of silicone spray for smoothness.

Testing for current around the circuit revealed that the speed control board was where things stopped.  The speed control board was dead and required replacing.

To prove this fact, I was able to temporarily by-pass the controller and connect the mains switch to the motor, which revealed that the motor was strong.

A quick bit of shopping with my favourite parts suppliers yielded a replacement (updated) speed control PCB for under £20, which seemed like good value to me.  After making a note of the wiring (see slideshow), the new PCB was connected up, the casing back together and Henry was ready to run, once more.

I also decided to give Henry a little polish too, just because.

 

 

Dyson: Please sell me the part I need

A DC32 Animal Vacuum Cleaner gets a second chance

One of these please, Dyson…

 

IMG_0558
FixItWorkshop, Worthing, December 2019, broken turbine/ fan.

All things made, will eventually break.  Things that are made eventually wear out and either must be replaced or repaired.  However, some things wear out a little faster than others.

Planned obsolescence and manufacturing budgets mean that parts within products can wear out faster than reasonably expected and fail totally, rendering the rest of a perfectly working item, useless.

This is where us repair folk come in.  We refuse to accept this problem and work away tirelessly in sheds and lockups everywhere, working on solutions to problems such as this, keeping things going, a little longer.

A friend’s DC32 Animal cylinder vacuum cleaner’s roller beaters had stopped turning and made nothing but a horrible noise, when the cleaner was in use.  Not cool.

The roller beaters on this model are literally vacuum operated by a turbine/ fan which spins fast when air passes across it, driving the beaters by a toothed belt and gear.  There is no separate motor to drive the roller beaters, which is quite an elegant solution to a complex problem.

Fast forward to the issue and despite identifying the broken part and then contacting Dyson directly for a replacement, they would not sell what I needed, a part that would probably cost no more than £10 to supply.  Such a shame.

Website
FixItWorkshop, Worthing, December 2019, Dyson website screenshot 22/12/19.
Copy head
FixItWorkshop, Worthing, December 2019, a copy item on eBay for under £20, screenshot 22/12/19.

The price of the (original equipment quality) complete Dyson Turbine Head, suitable for the DC32 vacuum cleaner, is £60.00 as a direct replacement from Dyson, but the part is now copied by other manufacturers.  A pattern part design is available for under £20 and if this was my machine, I’d be tempted at that price.  Pattern parts have their place, but I suspect that at this price, performance won’t be quiet as good as the original.

So, a choice:

  • Replace the part with a brand new Dyson part – too expensive
  • Replace with a non-original part, that will probably do the job – unknown outcomes, unsatisfying
  • Attempt a repair on the original part.  Of course it’s what I’m going to do!

On with the repair.  The Turbine Head is screwed together using Torx head screws and the side vents that secure the main drive unit, pop-off the main casing, with some encouragement.

This slideshow requires JavaScript.

A picture paints a thousand words and the above slide shows the dismantling and reassembly process for the Turbine Head.  If attempting this kind of thing yourself, remember to keep all components free of dirt and grime.

In the absence of a replacement, I attempted a repair to the existing fan and since it was made of plastic (some kind of nylon derivative I think) it was going to be difficult.  Not many glues will stick this type of plastic well, so my choice was going to be ‘make or break’, literally.  I considered an epoxy resin, but opted for Gorilla Glue, since it expands slightly in use, to all of the microscopic gaps.  I also used it to modify the fan by filling-in around the spindle to try and prevent slippage, when spinning.  When dry, I lightly sanded any high spots of glue away.

IMG_0655
FixItWorkshop, Worthing, December 2019, glued turbine/ fan.

Once the whole unit was back together and reconnected to the main vacuum cleaner, the head roller beaters spun once again without a horrible noise.  Question is, how long will it run for?  If anyone thinks they can make a replacement using 3D printing, please let me know!

An orange Kenwood Chef A901! I mean, what’s not to like?

More orange please!

Why oh why oh why are more kitchen machines not orange?  I mean, just look at this beauty.  Rare-ish and as a Chef spotter, I think the only time I’ve seen another is on the kids’ TV program, Waffle the Wonder Dog on Cbeebies, here in the UK.  Do you have one in another funky colour?  If so, please send me a picture!

An orange Chef in the workshop:  It was like Christmas had come early.

IMG_20191209_213850
FixItWorkshop, Worthing, December’19, orange Chef A901.

 

Make and model: Kenwood Chef A901 (orange)

Fault reported: No go

Cost of replacement: About £300

Cost of parts: £13.74

Hours spent on repair: 2

Tools needed: Cutters, screwdriver, soldering iron, multi-meter, cleaning tools

Sundry items: Light oil

Repair difficulty: 5/10

Cups of tea: 1

Cheesecakes: 2

Capture
FixItWorkshop, Worthing, Kenwood Chef Major in Orange.  Super rare?

The Chef had actually been working for a living since it provided daily assistance in the production of artisan cheesecakes, being sold at a local market.  Recently it had decided to start a smoking habit and then go on strike leaving the owner in a bit of a muddle and customers with rumbling tummies.  That simply wouldn’t do.

Anyway, on with the repair. Opening up the casing revealed the problem straightaway.  One of the capacitors had failed and a resistor had burned out, leaving a failed circuit.

IMG_7870 cap
FixItWorkshop, Worthing, December’19, A901 failed components.

With a decent repair kit bought (from eBay), I replaced all components relating to the speed control circuit, which made the motor run again.  I also replaced all the machine’s 5 feet, since the originals had long since gone to mush, something they all do with age. Since the motor was out of the unit, I took the trouble to adjust the motor’s end float and oil the bearings, for ultra-smooth running.  Very satisfying.

IMG_20191202_210500
FixItWorkshop, Worthing, December’19, orange Chef in bits.

With the casing all back together, I gave the machine a light T-Cut and polish to make it look as good as new and despite its 30-odd years and the odd bit of flaky paint, I think you’ll agree- it looks fab.

IMG_20191209_213838
FixItWorkshop, Worthing, December’19, orange Chef A901, open, looking fab.

PS, thanks to Andrew for supplying the very yummy scrummy, lime cheescakes.

 

 

Check your plug! A simple Miele PowerLine Vacuum Cleaner repair

Mains plugs lead a hard life, make sure yours are safe. If they are damaged, replace!

Before and after…

A quick 15-minute job, with a satisfying result.

Sometimes, it’s not a complicated fault preventing an otherwise good machine from working.  It’s just a case of taking the plunge and getting stuck in as the owner of this vacuum cleaner had proved.

Make and model: Miele PowerLine Vacuum Cleaner

Fault reported: Not running/ occasional sparks(!)

Cost of replacement: About £139.99

Cost of parts: £0.00

Hours spent on repair: ¼

Tools needed: Cutters, screwdriver and soldering iron

Sundry items: Silicone spray, T-Cut

Repair difficulty: 1/10

Cups of tea: 1

Biscuits: 1 Ginger Nut

 

IMG_0300
FixItWorkshop, Worthing, November ’19, Miele S5211 Vacuum Cleaner.

Sometimes the simplest things are the best.  This machine had been working well when sparks began coming from the mains plug.  The owner had reacted quickly by turning off the power and then removing the plug from the wall socket.  Good job.

The owner then bought a new plug from a local hardware shop to replace the damaged (cracked) plastic plug fitted.  She then fitted the new plug to the vacuum cleaners’ flex but nothing happened when she switched it back on.  Frustrating!  It’s reassuring to hear that folk still bother to get screwdrivers out and attempt a repair.  It makes it all worthwhile.

When I saw the vacuum cleaner and heard the back story, I immediately inspected the plug wiring and spotted that a bit of insulation was still trapped on the live connecter, preventing the electrical connection.  30 seconds with a pair of cutters and a small flat blade screw driver and the machine was working again.

Me being me, I then decided to give the Miele’s plastic casing a quick polish with T-Cut and wax, to bring it up to the correct standard.

It made me think:  How often do people change plugs these days?  Not often.  So, if you’re wondering what the correct position of the wires should be, it’s this (UK specification).

Capture
FixItWorkshop, November’19, UK plug – not my image.

General hints

  • Make sure all screws are tight
  • Ensure the cable grip clamps the cable insulation
  • Don’t trap wires in between the casing

If in any doubt, consult a friendly shed-dweller or spanner spinner.

Genuine or pattern parts? A Dyson DC40 gets a little tune-up.

Genuine or pattern parts? What to do!?

Article 100!

It’s a dilemma sometimes.  Should you always fit genuine replacement parts or is it OK to fit quality aftermarket or pattern parts.  My answer:  It depends.

Make and model: Dyson DC40

Fault reported: Torn hose and loss of suction

Cost of replacement: About £200.00

Cost of parts: £16.53 (hose and filters)

Hours spent on repair: 1

Tools needed: Screwdrivers

Sundry items: Silicone spray, PTFE spray, rag

Repair difficulty: 2/10

Cups of tea: 2

Biscuits: 1 McVities Gold Bar

A mate of mine contacted me to ask if it was worth fixing his 6 year old Dyson DC40 and as always, I said yes it was.  A couple of days later, it was working again, like new.

IMG_0446
FixItWorkshop, November’19, Dyson DC40.

The DC40 is still supported by Dyson and parts are readily available direct from them.  Problem is that, as my mate did, the price of some spares (although quite reasonable actually) can put some people off, which means that serviceable machinery can end up at the local dump, prematurely.  Which is a shame.

This is where pattern parts can help.  Often, aftermarket manufacturers will make spares for popular models and the advantage of these is that they are often much cheaper than the original part.  However, it’s not as simple as that.

I’ve fixed 100s if not 1000s of things and have used and continue to use a mixture of genuine original (often called OE or Original Equipment) and pattern parts for different reasons.  Assuming original equipment parts are the best, here are my thoughts, in no particular order, to help you if facing a similar dilemma.

In favour of pattern parts:

  • They can make a repair viable, financially
  • Parts can be available, long after original parts become obsolete
  • They can provide enhanced features that were not part of the original design

In favour of genuine/ original equipment parts:

  • They will fit exactly as the specification will be to the original design
  • They maintain manufacturers warranties, where applicable
  • They normally last well and perform as expected

As a further example, I will only fit genuine water pumps (on car engines) but will fit pattern air filters.  Water pumps must work within very exact performance tolerances whereas air filters, although important, don’t so much.  It’s a personal thing at the end of the day.

Back to the repair.  This Dyson wasn’t picking up dirt and the extension hose was torn, so a new hose was ordered from a supplier on eBay for under £10, a genuine part was over £25.  The hose just clicks out and in, so all that was required was a small flat bladed screwdriver to remove and refit the hose.  Nice and easy.

The next job was to sort out the lack of suction.  As with all Dysons with a problem like this, I always check filters.  As suspected, both filters were expired and needed to be replaced as they were too far gone to be washed.  Again, pattern part filters were available on eBay for under £7, genuine ones were much dearer.  All new parts fitted well and soon the vacuum cleaner was breathing easily again.

Another issue with the DC40 is the switch lever which diverts suction from the beater head to the hose, which was sticking on this machine.  A quick clean up and a small spray of silicone spray on all the moving parts had it all working again.

This slideshow requires JavaScript.

I always clean-up the beaters on any vacuum cleaner in for a service and this one seemed to have half a head of hair stuck in it, which would have impeded performance.  The hair was so bad, I had to remove the beaters (just one screw) and cut off the hair with a knife.

With all the remedial work completed, the Dyson ran well proving once again that it’s usually worth repairing, rather than replacing.

 

Dyson DC25 with various problems

Another Dyson dodges the dump

An email dropped into my inbox about a poorly Dyson DC25, that needed a bit of a clean up.  I said no problem, I’ll take a look.  What turned up was a vacuum cleaner that needed a bit more than a quick clean up with a J-Cloth.

Make and model:  Dyson DC25 (blue/ grey)

Cost of replacement:  £N/A, price when new £300

Cost of parts:  £6.89 (plus my time)

Hours spent on repair:  2.5 (plus testing)

Repair difficulty:  5/10

It soon became apparent, that the Dyson was quite ill.

Here’s a summary of the problems:

  1. The mains cable flex was split, exposing the internal cables risking electric shock
  2. The roller beaters would not spin
  3. Suction was limited

None of these features were useful in vacuum cleaner, so out came the screw drivers.

The mains flex damage was about 90 cms from the handle end, so rather than replacing the whole cable at about £30, I decided to shorten the one already fitted on the Dyson.  This involved removing three screws on the reverse of the handle to expose the wiring.  From there, the broken flex could be cut-out and the sound part of the flex, reattached to the Dyson’s wiring.  See below.

This slideshow requires JavaScript.

The DC25 features a roller-ball, enabling the beater head to twist and turn in to tight spots on the floor.  This means that mains power must navigate the various joints and hinges on the way from the main body to the roller beaters.  A quick test revealed that the power was not getting through.  After removing one of the side covers, there was evidence of a previous repair.  One of the mains cables had broken and had then been twisted back together.  Clearly, an improvement was needed.  Using a section of repair cable, a small joint was soldered back in to place with some mains-rated heat shrink around the connection for insulation and reinforcement.  See below.

This slideshow requires JavaScript.

The beater head also needed a good clean, which meant a strip-down and re-build.  All parts were cleaned, inspected and reassembled.  During that process, a small break in the beater head wiring was found, repaired and put back together.  See below.

This slideshow requires JavaScript.

Finally, the machine needed a good clean up.  The main cylinder was washed, the filters washed (although I later decided to replace these) and the main seals on the vacuum system, cleaned and silicone sealed.  See below.

This slideshow requires JavaScript.

During clean up, the spigot-yoke that holds the roller ball in place on one side was found to be missing.  Luckily the owner had kept this and dropped it back to me to re-fit.

This Dyson was on the brink, but with a little bit of spanner-time, it’s now ready to serve many more years.