Connacht's 990 restoration

This is for members to post photos of their restorations, either completed or "works in progress"

Moderators: Segrie61, admin

Guest

RE: Brakes

Post by Guest » Wed Feb 19, 2014 2:41 pm

The procedure is exactly the same in putting the brake shoes back in on all models so the diagram that Andy sent you will cover it. Just remember to slacken off the rod from the pedal shaft to the clevis/jaw pin as much as you can to close the shoes together in order that the final drive/drum slides in and over them easily, if they're still tight just take a little off the outside edge of each shoe at an angle to give them a little 'lead'.

leshanmer
Posts: 32
Joined: Sat Jun 07, 2008 12:23 am
Location: ellesmere shropshire

Post by leshanmer » Thu Apr 10, 2014 11:48 am

Hi just a quick observation I see in one of the photos you have the tractor supported on what look like breeze blocks, I was always told this was bad practice as they have a tendency to collapse under weight we should use timber blocks or better still proper axle stands. good luck with the restoration.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Thu Apr 10, 2014 12:03 pm

Hi leshanmer I have it supported with solid 6" blocks and timber at the top also the bottle jack is under it in case the timber cracks, on a different note do you know where I can get the brass grease baffle in the brake hub and also the steel ring spacer the spacer is around quarter inch thick with a chamfered edge one side.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Thu Apr 16, 2015 10:13 am

Hi Amack thanks for your reply, but its on the left side above the left arm where the locking unit is looking in from the back not the right side.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Sun Sep 13, 2015 1:30 pm

HI Can you tell me what size bolt thread holds on the stabiliser plate in a 1965 990 implematic

DB770.DB880
Posts: 673
Joined: Tue Jan 15, 2008 12:36 am
Location: N.B. Canada

Post by DB770.DB880 » Sun Sep 13, 2015 1:49 pm

They are 1/2 UNC X 1 3/8"
What part of Ireland is Connacht in?

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Tue Sep 15, 2015 9:02 am

Thanks John for your help, it seems you were never in Ireland you should visit the west of Ireland sometime,

tomryall
Posts: 131
Joined: Sun Jun 03, 2007 4:53 am
Location: canada

Post by tomryall » Wed Sep 16, 2015 2:23 pm

connacht is one of four provinces in Ireland ,it is the north west of the republic,it comprises the countys of galway,leitrim,mayo,roscommon and Sligo.the others are munster,cork clare kerry,limerick,tipperary,and Waterford in the south.leinster Carlow,dublin,klidare,kilkenny,laois,longford,louth,meath,offaly,westmeath,and Wicklow in the east. and ulster in the north cavan,donegal,monaghan.these are the 26 counties that make up the republic of Ireland

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Fri Sep 18, 2015 8:19 am

I tried the half inch unc bolts but they wont thread into the holes, but an m12 will does this make any sense to you john.

Guest

Post by Guest » Fri Sep 18, 2015 9:06 am

According to the parts list book the stabiliser bracket bolts are 1/2" UNC x 1"1/2 with 1/2" spring washer. These bolts are I believe standard size on all models. If the correct bolts won't screw in then you should make sure that the thread in the casting is clean by running a tap into it, and I don't mean water, :wink: and also check that any old bolts have not broken off in the holes, if they have you'll have to drill and tap them out.

User avatar
bedwards1966
Posts: 836
Joined: Sun Mar 07, 2010 10:36 pm
Location: North Yorkshire

Post by bedwards1966 » Fri Sep 18, 2015 8:12 pm

It sounds like the threads are rusty or have dirt in them, I'm certain they will not have left the factory with metric threads, and as M12 is slightly smaller than 1/2" it figures.
Run a tap through as said by Powerrabbit, don't use M12 as they will probably end up working loose or pulling out under load and ruining the threads in the process.

Guest

Post by Guest » Fri Sep 18, 2015 9:22 pm

Exactly, cleaning up the threads with the correct size tap is the only way to go, using anything other than the correct size and type of bolts will destroy the thread, remember that these holes are in very soft cast iron, if the threads are rusted to the extent that you can't effectively clean them out you can tap them out to the next nearest size or drill out just the thread and re-tap with a metric thread to enable you to use a more readily available bolt.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Sat Dec 05, 2015 10:40 pm

sorry guys been out of touch thanks for all your advice, I got a tap to run through the holes and clean them out it works now as ye said there 1/2" unc thanks again.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Sun Jun 05, 2016 4:02 pm

Hi all does anybody know if there was ever a safety switch on the db 990 implematic to prevent it from been started in gear.

User avatar
connacht
Posts: 45
Joined: Thu Feb 09, 2012 6:36 pm
Location: connacht ireland

Post by connacht » Sun Jun 05, 2016 4:39 pm

my finished product
Attachments
IMG_0855.jpg  23a.jpg
IMG_0855.jpg 23a.jpg (119.79 KiB) Viewed 4396 times
IMG_0854.jpg  22a.jpg
IMG_0854.jpg 22a.jpg (114.63 KiB) Viewed 4396 times

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests