Found these behind RPM readout plate on lathe?

[Ady WilsonParticipant @adywilson52106]

I got a Chester DB10 lathe delivered a couple of weeks ago. I havent really used it much as I have found myself making some improvements to it instead which I will post about in the near future. Anyway even though it has only been run a few times I noticed the digital RPM readout was not working correctly,sometimes it would come on and other times not and on occasion would decide to come on after a while?? So I thought I would have a look behind the late to check for faulty connections or anything obvious.

This is what I found

Four bolts just sitting there…

I don`t believe they are meant to be there or does somebody here know better? One of the mods I have made for the machine is a rear mounted parting tool holder as the chatter and vibration were very bad when trying to part on it. These bolts wont stop the chatter but certainly must have been contributing to the noise. I wonder if they have damaged something when rattling about in there?

[Ady WilsonParticipant @adywilson52106]

[HopperParticipant @hopper]

LOL, Chinese QC strikes again.

The big question is where on the lathe are those bolts supposed to go?

[Thor 🇳🇴Participant @thor]

Well Ady, you have got four long Allen bolts for free, haven't you? Congratulations with your new lathe, I hope the digital RPM readout is working correctly now the bolts are removed?

Thor

[doubletopParticipant @doubletop]

A lot of empty space in there, what else could it be used for?

Thought, I have an equivalent to the Crusader and the manual has a pictorial breakdown of the lathe. What does your manual show?

Pete

(now off to the Chester site to see what other models offer in that space)

Edited By Doubletop on 09/11/2017 06:37:25

[jimmy bParticipant @jimmyb]

Crazy!!

Let Chester know.

Jim

[Speedy Builder5Participant @speedybuilder5]

They are "Soddin' Bolts" often found in foreign shipments. Ie: When packing up something and there are bits left over, the cry goes out – "What shall I do with these Soddin' bolts" and you have found the answer. A long time ago, a friend of mine was the last apprentice out of a big works which was closing down and the last job was to pack and crate up a large machine for export to India. Their brief was to clear the shop floor including the machine and anything else left over. Appropiately, they added an item to the shipping list called a Soddin Crate.
BobH

[larry PhelanParticipant @larryphelan54019]

So much for pre-delivery inspection !!!

[Mike PooleParticipant @mikepoole82104]

Probably a guy in China still wondering where he put those bolts.

Mike

Edited By Mike Poole on 09/11/2017 11:33:03

[MWParticipant @mw27036]

N/A

Edited By Michael-w on 09/11/2017 11:37:22

[VicParticipant @vic]

I think you just found the free gift they left for you …

[Ian S CParticipant @iansc]

There's probably someone somewhere who has a lathe with 4 missing bolts, and that bloke is scratching his head and wondering what happened to them. They might be the right size for bolting on the 4 jaw chuck.

Ian S C

[Gordon WParticipant @gordonw]

I use that little cubby hole for storing stuff, tool hight setter for one. Didn't bother to put the cover back on.

[David Standing 1Participant @davidstanding1]

Posted by jimmy b on 09/11/2017 07:46:02:

Crazy!!

Let Chester know.

Jim

I wouldn't bother wasting my time. What are they going to do? .

[richardandtracyParticipant @richardandtracy]

A friend/colleague of mine was once invited on a Dan Air D check test for a 737. The pilot threw it about a bit and an awful noise started coming from (as he identified) the wing box under the fuselage floor. On landing, they quickly whipped open one of the rivetted access panels and.. There was a 110 volt vacuum cleaner with a stencil on it saying 'Property of Boeing Aircraft Corporation'. It had been rivetted in without anyone noticing, and had stayed there for years. Only being noticed for the first time in the test flight my friend went on. So much for aviation standard QA checks…

Regards,

Richard.

[John HaineParticipant @johnhaine32865]

A former boss was given quite a new car by his father because it had a terrible noise coming from under the seats somewhere which he couldn't trace. After having it a couple of weeks my boss was able to give his dad back the first aid tin….

[Martin 100Participant @martin100]

Posted by richardandtracy on 10/11/2017 13:52:52:

A friend/colleague of mine was once invited on a Dan Air D check test for a 737. The pilot threw it about a bit and an awful noise started coming from (as he identified) the wing box under the fuselage floor. On landing, they quickly whipped open one of the rivetted access panels and.. There was a 110 volt vacuum cleaner with a stencil on it saying 'Property of Boeing Aircraft Corporation'. It had been rivetted in without anyone noticing, and had stayed there for years. Only being noticed for the first time in the test flight my friend went on. So much for aviation standard QA checks…

Not quite a vacuum cleaner but the report on the 777 that 'ran out of fuel' as it approached Heathrow a few years back made interesting reading, one of the items of debris in the fuel tanks being a plastic scraper used when sealing the tank.

Pages 70/71

**LINK**

[Gordon WParticipant @gordonw]

Years ago, when I worked at De Havilands, there were posters on the walls about not leaving stuff in the planes. Photos of all sorts, a packet of fish and chips is one I remember.

[jimmy bParticipant @jimmyb]

Posted by larry Phelan on 09/11/2017 11:09:04:

So much for pre-delivery inspection !!!

I think that is done in China…………..

Jim

[SamsarandaParticipant @samsaranda]

When a Brittania tail plane was X- rayed, many years ago at RAF Lyneham, inside was clearly shown a hammer which had been left inside when the tail plane was built, apparently not uncommon to find such objects left inside when assemblies are built up.

Dave

[Cornish JackParticipant @cornishjack]

Aviation engineering standards are very high, but engineers (of any stripe) are human … and humans make mistakes!! It's obviously bad news to include (leave) items where they shouldn't be, but just as bad to miss things out. Whirlwind10 hover taxied out and noticed unusual noise/vibration. Back to the pad and as they touched down, the head and gearbox departed on a violent walkabout!! Techies checked to find that the rotor head grease nipples had not been drilled completely through!!! Thereafter greasing required the appearance of NEW grease at the working end, not just back pressure at the application point. Check Lists … I love 'em!!

rgds

Bill

[alan-lloydParticipant @alan-lloyd]

Friday afternoon build

[KMPParticipant @kmp]

A few moons ago working as an apprentice on a HS 748 I dropped a spanner into an area that required a skin to be lifted for removal. When detailed to do it the following day I had to explain that I was at college and wouldn't be able to. When I returned from my day of study (?) I was thrown a spanner by the supervisor who started telling me my life story. I had to interrupt him to explain that it wasn't my spanner as it was a Snap On and mine was a King Dick, when he came down off the hangar roof I was handed an air drill and a requisition for some heat treated rivets. didn't have to ask what the job was, when I lifted the skin there was my spanner a foot or two away and partly hidden. Have no idea how long the other one had been there but I was rather put out as I wasn't allowed to keep the Snap On.

Keith

[Author]

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