Search found 2074 matches

by db2d
Wed Oct 16, 2019 12:04 am
Forum: DBTC Forum
Topic: Seized or Stuck Brakes 780
Replies: 15
Views: 226

Re: Seized or Stuck Brakes 780

I understand what you are having problems with. In all probability you will not be able to free-up the cam shaft without removing the reduction unit. If the shaft is seized on the end nearest the brake drum penetrating fluid will not not reach that area. With the reduction removed penetrating fluid ...
by db2d
Tue Oct 15, 2019 10:32 pm
Forum: DBTC Forum
Topic: Seized or Stuck Brakes 780
Replies: 15
Views: 226

Re: Seized or Stuck Brakes 780

The diff lock has nothing to do with the operation of the brake but it has to be secured in the engaged position if the reduction unit is removed to avoid the locking gear falling out of its selector mechanism.
by db2d
Tue Oct 15, 2019 10:21 pm
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 13
Views: 317

Re: Injection Pump Inlet Filter

If the wrong steel is used to make the push rod the cam-shaft lobe gets damaged.
by db2d
Tue Oct 15, 2019 6:49 pm
Forum: DBTC Forum
Topic: Seized or Stuck Brakes 780
Replies: 15
Views: 226

Re: Seized or Stuck Brakes 780

If the right hand reduction has to be removed be certain to firmly secure the diff lock pedal in the fully engaged position. The brake lever will also have to be knocked backwards to ensure that the brake shoes are not in contact with the brake drum.
by db2d
Tue Oct 15, 2019 9:31 am
Forum: DBTC Forum
Topic: Seized or Stuck Brakes 780
Replies: 15
Views: 226

Re: Seized or Stuck Brakes 780

There isn’t a grease nipple on the cross shaft, only on the left pedal. The left
pedal is secured to the shaft with a mills pin.
The right pedal should be free to rotate on the cross shaft.
by db2d
Tue Oct 15, 2019 7:34 am
Forum: DBTC Forum
Topic: Seized or Stuck Brakes 780
Replies: 15
Views: 226

Re: Seized or Stuck Brakes 780

Apply heat and use a good high pressure grease gun to force grease into the seized pedal.
by db2d
Thu Oct 10, 2019 1:16 pm
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 13
Views: 317

Re: Injection Pump Inlet Filter

Can you please state the tractor type because there is a difference between the Implematic and Selectamatic fuel system.
by db2d
Thu Oct 10, 2019 11:25 am
Forum: DBTC Forum
Topic: Reattach fuel pipe end - DB780
Replies: 10
Views: 249

Re: Reattach fuel pipe end - DB780

Its a low pressure fuel supply pipe to the injection pump.
by db2d
Thu Oct 10, 2019 2:56 am
Forum: DBTC Forum
Topic: Reattach fuel pipe end - DB780
Replies: 10
Views: 249

Re: Reattach fuel pipe end - DB780

You can use the same solder in conjunction with a gas blow torch
by db2d
Wed Oct 09, 2019 9:46 pm
Forum: DBTC Forum
Topic: Reattach fuel pipe end - DB780
Replies: 10
Views: 249

Re: Reattach fuel pipe end - DB780

Clean everything thoroughly and either solder or low temperature braze.
by db2d
Wed Oct 09, 2019 12:47 pm
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 13
Views: 317

Re: Injection Pump Inlet Filter

Have you changed the fuel filters ? Some of the filters on the market are very poor quality and reduce the fuel supply. The filter in the back of the injection pump can be removed without bits falling into the pump. I suggest obtaining new filters from davidbrownparts.com Is the tractor an Implemati...
by db2d
Tue Oct 08, 2019 4:09 pm
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 13
Views: 317

Re: Injection Pump Inlet Filter

There is no need to remove the pump or the end plate. Remove the input pipe and then the adapter connection and then you can carefully remove the filter. It is unusual for this filter to become blocked bearing in mind the fuel has to pass through several filters . The usual reason for the problem yo...
by db2d
Wed Oct 02, 2019 5:25 pm
Forum: DBTC Forum
Topic: 1967 990 selectamatic starter motor
Replies: 1
Views: 132

Re: 1967 990 selectamatic starter motor

Right hand side viewed from the drivers seat
by db2d
Mon Sep 30, 2019 6:33 pm
Forum: DBTC Forum
Topic: 1960 David Brown 880 3-cylinder engine
Replies: 5
Views: 249

Re: 1960 David Brown 880 3-cylinder engine

Manuals are available from various outlets. Try davidbrownparts.com
It would be very helpful if you could supply the tractor engine and serial numbers. This would enable identification of the type of engine in your early model.
by db2d
Fri Sep 20, 2019 9:03 am
Forum: DBTC Forum
Topic: Early Cropmaster Oil filter
Replies: 7
Views: 352

Re: Early Cropmaster Oil filter

The original felt filter is available from this country for 56 NZ dollars including postage!
The cork gasket is £2.50