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warco 918 bench lathe

problems

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wally robson21/04/2022 18:15:36
19 forum posts

I've just acquired a warco 918. Not really impressed with . Biggest problem is The drive belt keeps flipping off when I stop it. Followed the instructions about letting off jockey pulley before starting (odd) but still flips off. Does anyone have a picture or description of drive belt layout as it doesn't look right to me. The motor to ribbed drive belt d rive does not appear to be connected to anything>? did it originally have a longer belt that went over that drive and the aluminium pulleys?

anybody got an instruction manual?

Martin Connelly21/04/2022 18:40:26
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2137 forum posts
222 photos

I think it's the same as the Grizzly lathe this is the manual for. G4000

Martin C

wally robson21/04/2022 20:05:38
19 forum posts

thank you so much martin . It is the same. I'll be reading it and try to fix errors. many thanks

wally

Stuart Smith 521/04/2022 22:21:33
279 forum posts
43 photos

Wally

One of the members of the forum has documented his purchase and experience with his Warco 918.

**LINK**

Stuart

wally robson22/04/2022 00:16:04
19 forum posts

thank you. I have posted on that thread now

wally

Michael Gilligan22/04/2022 01:01:53
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20200 forum posts
1053 photos
Posted by wally robson on 21/04/2022 18:15:36:

[…]

Does anyone have a picture or description of drive belt layout as it doesn't look right to me. The motor to ribbed drive belt d rive does not appear to be connected to anything>? did it originally have a longer belt that went over that drive and the aluminium pulleys?

.

The illustration in the Grizzly manual looks quite clear … How does this compare with what you have on the machine ?

MichaelG.

.

c2fe51cf-c183-43cf-9c4c-7aa48c2a1187.jpeg

Hopper22/04/2022 02:32:17
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6421 forum posts
335 photos

We really need to see pics of what you have before any meaningful diagnosis can be made.

Details of how to post pics on this rather odd site software are here **LINK**

JasonB22/04/2022 07:44:29
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Moderator
22764 forum posts
2656 photos
1 articles

I'd also be checking you have the right length and spec belt and motor is lined up as it should be.

Hopper22/04/2022 07:50:54
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6421 forum posts
335 photos

New belt/s might be in order anyway on a secondhand machine. They do deteriorate with age and can take a "set" if not used for extended periods.

wally robson22/04/2022 08:29:16
19 forum posts

now I have picture of the pulley set up is the same. Checking the alignment it is not in line from motor drive directly to chuck spindle drive used for slower speeds although I cannot see anything has moved. Any way I haven't used the belt in that position yet, and belt twists and flips of the two aluminium pulleys. Maybe it is just a worn belt? A new belt is about £35!!, so maybe I'll invest in one and let you know.

Does any other lathe have a lever that slackens belt on start up to avoid belt breaking? Seems odd to me that you have to slacken belt then switch off motor to stop chuck moving slowly to measure work each time. Maybe it's me being picky?

thanks for your input

wally

Niels Abildgaard22/04/2022 09:30:00
429 forum posts
159 photos

100 £ aprox can pay an industrial sewing machine motor.

Lathe can then be modified to something like shown and be easier to use.

wp_20200923_001[1].jpg

GordonH22/04/2022 10:21:24
49 forum posts
7 photos

If I remember correctly, this is identical to the Chester 920 which I used to own.

The motor shaft has two pulleys. The inner, ribbed pulley drives an idler pulley, at lower speed. The second belt connects the spindle three(?)step pulley to the second pulley on the motor for high speeds, or the second pulley on the idler for low speeds. The small idler pulley tensions the spindle drive belt and seems to help when starting

Gordon

wally robson22/04/2022 10:39:57
19 forum posts

thanks gordon. Yes they are similar. I have just ordered a new belt for £42 !! hopefully will stop belt flying off. Did you have any problems with the belt on you chester?

wally

Hopper22/04/2022 10:40:30
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6421 forum posts
335 photos

Belts will be cheaper from an industrial supplier or bearing shop etc.

wally robson22/04/2022 10:45:33
19 forum posts

yes but none seem to carry this particularly small vee belt. I've tried four suppliers now. Closest was 8mm wide by 600mm at £12, suddenly mine goes up to £42 at only one supplier who has them at 5mm by 710. Was even contemplating fitting a round belt into it at about £7.50 but don't think I would get enough friction so dis counted the idea

wally

Hopper22/04/2022 10:56:51
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6421 forum posts
335 photos

Ouch!

Andrew Tinsley22/04/2022 11:17:31
1630 forum posts

After some sage advice from another owner. I scrapped the ridiculously complicated belt set up and fitted a 3 phase motor with VFD drive. It finished up like Neils' set up. I would have gone for it,if it had been available at the time Once you have sorted out the drive system. You will then find that the whole cross slide top slide arrangement is rubbish.The tool is about as steady as a stiff jelly. There are mods you can do, the simplest is to dispense with the top slide and use a Gibraltar style tool post. There are lots of mods that can be done to bring the lathe up to a reasonable level of usefulness. Google "Tricking out an Asian 9 x 20" and other similar topics on the 920 lathe.

Don't get me wrong, the lathe can be turned into a useful machine, but it does take a fair amount of work to get there. The Gate's belt can be expensive and you need to know that there are two possible belts x10 and x20 I forget the value of x.. You can get the Gates belts from the US, if you have any US contacts, they are much cheaper there!

Andrew.

GordonH22/04/2022 11:34:13
49 forum posts
7 photos

Wally,

Sorry, I can't remember; the 920 and I did not have a happy working relationship, I stopped using the 920 over 10 years ago and gave it away five years ago.

Gordon

JasonB22/04/2022 11:52:19
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Moderator
22764 forum posts
2656 photos
1 articles

It's just a standard gates 5M710 belt, loads on the net such as here

Edited By JasonB on 22/04/2022 11:55:22

wally robson22/04/2022 11:52:53
19 forum posts

I've already done some mods . The carriage had 30 thou , yes 30 thou lift in it . so made a stepped gib slide to fit at the back of carriage which eleiminated that, adjusted play on cross slide.

Strange I don't like machine although it looks sturdy and good and yet I'm doing work on it. go figure?

If the expensive new belt works,( and it's about as substantial as the missus'knicker elastic0 I might keep it

wally

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