Project compressor

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Was given a non-working compressor and I hope to get it working again if I do I might give it a lick of paint and tidy it up.

The problem is the motor doesn't work. When you turn it on there is the hum of power and it looks like it wants to spin but it doesn't. it just gives a little jump. I've tire giving the fan a little push to help it go but it won't I've also removed a plug from the compressor barrel to lose the compression to see if that helps but it didn't. I suspect motor brushes.

https://img.photobucket.com/albums/v295/chris-red/IMG_20161015_132028_zpsghxpshjg.jpg

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Bit stuck now, I don't know how to split the compressor from the motor the fan was held on by a circlip but I can't pull it off and don't want ot put too much force though it it looks like I might have to remove the piston and rod, but wanted to get some advice before going further.
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Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

RhynoCZ · Super Spammer Joined: 09 Mar 2012 Karma :

Is the condenser (capacitor) charging properly? If that's not the problem, then I'd be getting a new motor, they are not that hard to come by, you can even change the whole compressor unit. You already own the most important thing, and that is the tank. My neighbor used the compressor from an old frefigerator, the pressure build up is slow, but it's working.

Well, that, if you don't mind the unit not being period accurate. Thumbs Up

Q: Is capacitor the same thing a condenser in English? In Czech we say condenser. Thinking

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'87 Honda XBR 500, ~~'96 Kawasaki ZX7R P1~~, ~~'90 Honda CB-1~~, ~~'88 Kawasaki GPz550~~, ~~MZ 150 ETZ~~
~~'95 Mercedes-Benz w202 C200 CGI~~, '98 Mercedes-Benz w210 E200 Kompressor

ZebraDriver · Scooby Slapper Joined: 13 Feb 2011 Karma :

Probably won't have brushes. Check capacitor (usually swollen or leaking if faulty) , centrifugal switch (stuck open and preventing start winding/cap from working) and start winding or main winding fault (open or short circuit).

ZD

p.s. Fan will lever off shaft but will probably crack as your doing the levering (old fans tend to be brittle). After fan is off end cover will come off showing centrifugal switch and wiring connections. Smell the windings at this point - a "sweet" smell tends to indicate burnt out windings

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

The capacitor is new the bloke I got it off replace d that and gave up.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Don't know the capacity of that one but do remember you can buy a 50 litre clarke compressor for about £150 brand new.

You can buy new clarke electric motors for about half that (depending on size).
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

331X2 · Crazy Courier Joined: 10 Jul 2013 Karma :

Don't think it's the machine mart 'Clarke' going by the name plate.

OP, what's the value of the capacitor and how is it connected? Does the pump rotate freely?

V2 · Nearly there... Joined: 06 Feb 2006 Karma :

If it was the capacitor then the motor should still start after spinning by hand if I remember back to college correctly!

Cant you just drop off said motor at a motor rewind place and let them have at it?

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

bugeye_bob · World Chat Champion Joined: 05 Sep 2013 Karma :

Looks like others have had the same problem.

https://www.gumtree.com/p/air-compressors/clarkes-jumbo-air-compressor-se3aj-/1177989471

ThatDippyTwat · World Chat Champion Joined: 07 Aug 2016 Karma :

Change the cap. I know the bloke said he tried it, but for the couple of quid it will cost, it's worth making sure. Shit, even in Maplin, it'll be less than a fiver.

Post a picture up if you want. Need the writing and pins.

SQL · World Chat Champion Joined: 09 Aug 2012 Karma :

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Parts list.

I see part no 27 overload cutout. Could be a thermal switch and it might have gone bad. I'd look for/at that first.
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132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Clarke are very good on spares. I recently had parts for a 20 year old discontinued 12/24volt starter charger and prices were very low.

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Been a long time since I worked on one of these types of compressors but I believe disassembly is as follows.

1. Remove head and barrel.
2. Remove piston pin and then piston.
3. Remove con rod.
4. Remove fan using a hydraulic puller being careful that it doesn't crumble. It's a press fit on either a smooth or ribbed surface.
5. Sharp tap with a copper mallet on fan end of crank and it should start coming out. May take a few taps but should come out.

You may need to replace the crank bearings depending on how tight the crank is.

There is a chance that the piston or crank is seized which as you haven't mentioned draining the oil is a possibility.

If you take the head off does it turn over by hand?

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

It spins freely, and feels good. I've got no time to look at it till after xmas now. I'll bare all this in mind cheers.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.