Priestman Excavators

Discuss excavators here

Topic author
Nick Drew
Posts: 5422
Joined: Tue Jun 12, 2007 10:10 pm
Real name: Nick Drew
Has thanked: 437 times
Been thanked: 208 times

Re: Priestman Excavators

Post #231 by Nick Drew » Thu Jul 27, 2017 7:36 pm

Can't beat old school knowledge, glad we got to the bottom of this and it's nice to know such a fine old machine is still going! Would love to come and see it one of these days !


Jeremy Rowland
Moderator
Posts: 8667
Joined: Sun Aug 05, 2007 8:36 pm
Real name: Jeremy Rowland
Has thanked: 1867 times
Been thanked: 1688 times

Re: Priestman Excavators

Post #232 by Jeremy Rowland » Thu Apr 01, 2021 11:05 pm

The latest acquisition by Andrew is this Priestman 2-18 one of the last machines built by them while they were under Sanderson ownership, the machine came from a scrap yard and was fitted with a scrap handling grab, she would have been cut for scrap but Andrew bought her, the only setback is that the slew on the machine is not functioning.
The reason for the slew failure is the fact that the the three pins that hold the planetary gear-train have sheared off their holder, I am currently trying to locate one for Andrew. This machine has the two boom hoist rams, I have no idea how many of these machines were built, but it is the only one of its type that I have seen, perhaps Fred can tell us a bit more?

Jeremy


Image
Image
Image

User avatar

FOWLER MAN
Posts: 2358
Joined: Wed Dec 09, 2009 11:28 pm
Real name: fred evans
Has thanked: 1295 times
Been thanked: 1111 times
Flag: Wales

Re: Priestman Excavators

Post #233 by FOWLER MAN » Fri Apr 02, 2021 10:38 am

Hi Jeremy,
I don't know how many 2-18 s were built either, but mine was serial No. P4102 . That makes it No.102 off the production line.
I took delivery in October 1988 and Priestmans were still building them till their demise about two years later.
They were a brilliant bit of kit. A couple of picks. below.

Fred

Image
Image
Image


mechman
Posts: 501
Joined: Mon Nov 18, 2013 4:13 pm
Real name: norman orrick
Location: N.E.Lincs
Has thanked: 142 times
Been thanked: 132 times
Flag: Great Britain

Re: Priestman Excavators

Post #234 by mechman » Fri Apr 02, 2021 11:03 am

Jeremy.
Could those pins be made and fitted back into the plate?
Norm


Jeremy Rowland
Moderator
Posts: 8667
Joined: Sun Aug 05, 2007 8:36 pm
Real name: Jeremy Rowland
Has thanked: 1867 times
Been thanked: 1688 times

Re: Priestman Excavators

Post #235 by Jeremy Rowland » Fri Apr 02, 2021 11:15 am

Hi Fred, thanks; I have attached my photo of this machines serial number, Norman, yes that had crossed my mind, Andrew had thought that this was made from one lump of metal but that is certainly not the case as there are centres machined into the ends of the three pins where they have been held between revolving centres during manufacture.

I tested the hardness of the pins and the carrier, they are both soft so no case hardening, I suspect they have been made from EN24T or similar, I could file them with a well knackered file so that's how I know they haven't been hardened, if I cannot get a part then making three new pins and getting them fitted will be the order of the day.

Jeremy


Image

User avatar

FOWLER MAN
Posts: 2358
Joined: Wed Dec 09, 2009 11:28 pm
Real name: fred evans
Has thanked: 1295 times
Been thanked: 1111 times
Flag: Wales

Re: Priestman Excavators

Post #236 by FOWLER MAN » Fri Apr 02, 2021 5:08 pm

Hi Jeremy,
Just checking, and Priestmans didn't list any replacement parts for the slew gearboxes on any of the 2 Series models, only seal kits. It was a replacement gearbox job, so I think it very unlikely you will find parts.
It's a used box replacement. (That's if you can find one, which I doubt).
Probably better off getting something made as you suggested.
Fred.


Jeremy Rowland
Moderator
Posts: 8667
Joined: Sun Aug 05, 2007 8:36 pm
Real name: Jeremy Rowland
Has thanked: 1867 times
Been thanked: 1688 times

Re: Priestman Excavators

Post #237 by Jeremy Rowland » Fri Apr 02, 2021 8:50 pm

FOWLER MAN wrote:Hi Jeremy,
Just checking, and Priestmans didn't list any replacement parts for the slew gearboxes on any of the 2 Series models, only seal kits. It was a replacement gearbox job, so I think it very unlikely you will find parts.
It's a used box replacement. (That's if you can find one, which I doubt).
Probably better off getting something made as you suggested.
Fred.



Yes Fred I think you could well be right there; at least as the parts are 'soft' the broken bits of the pins can be machined out and three new pins easily made to an interference fit and shrunk in.

Jeremy

User avatar

Slooby
Posts: 505
Joined: Wed Aug 19, 2020 10:32 pm
Real name: Tim
Has thanked: 191 times
Been thanked: 117 times
Flag: Great Britain

Re: Priestman Excavators

Post #238 by Slooby » Fri Apr 02, 2021 10:15 pm

You could always try the trick with the pins that we did with the snapped stub axle on our dumper: notch them for welding back to the plate then once they're welded come in from the back of the plate and drill through into the pins, tap the holes and then bolt that up, grind the head of the bolts, V groove around the bolt shafts and tapped holes and weld that up too before grinding all flush. They will take a fair old bit of abuse if you do all of that!
CMN Stuff: MF65, Thwaites Nimline, JCB 3CX
Projects: S11a 88" V8 Hybrid, 2 x S111 109"s, Mk11 Mini, Harrison L5A :doh:
Ish projects: T25 Camper, ST675R
Just added: Alpine S5 & Bridgeport Mk2 :wtf:
Sorely Missed: Impreza, E39 M5


Jeremy Rowland
Moderator
Posts: 8667
Joined: Sun Aug 05, 2007 8:36 pm
Real name: Jeremy Rowland
Has thanked: 1867 times
Been thanked: 1688 times

Re: Priestman Excavators

Post #239 by Jeremy Rowland » Fri Apr 02, 2021 11:07 pm

Slooby wrote:You could always try the trick with the pins that we did with the snapped stub axle on our dumper: notch them for welding back to the plate then once they're welded come in from the back of the plate and drill through into the pins, tap the holes and then bolt that up, grind the head of the bolts, V groove around the bolt shafts and tapped holes and weld that up too before grinding all flush. They will take a fair old bit of abuse if you do all of that!


Yes that is another possibility although I think that getting the remains of the old pins out would at least let us see how the component was originally made, there is not much material on the back of the carrier so that would make this type of repair a bit harder.

Jeremy


essexpete
Posts: 4059
Joined: Fri Jul 13, 2007 12:43 am
Real name: essexpete
Has thanked: 849 times
Been thanked: 680 times

Re: Priestman Excavators

Post #240 by essexpete » Fri Apr 02, 2021 11:45 pm

Some good photos there Jeremy. Sanderson survived a little longer than Priestman. Did the latter get dropped by one of the parent companies?


Return to “Excavators”

Who is online

Users browsing this forum: No registered users and 9 guests