Search found 2049 matches

by db2d
Wed Aug 21, 2019 9:55 pm
Forum: DBTC Forum
Topic: Correct gearbox/hydraulic fluid for 1964 DB 990
Replies: 2
Views: 50

Re: Correct gearbox/hydraulic fluid for 1964 DB 990

The gearbox and hydraulic system share the same oil. There is a filter for the hydraulic system situated on the underside of the gearbox, this filter should be cleaned prior to new oil being introduced. Universal 15-30 can be used but sae 50 or sae 90 gear oil is by far the better option. These trac...
by db2d
Wed Aug 21, 2019 7:18 am
Forum: DBTC Forum
Topic: 885 Fuel Pump Problem-- Black Smoke and Clatter
Replies: 14
Views: 366

Re: 885 Fuel Pump Problem-- Black Smoke and Clatter

I suggest removing the unit from the pump. To ascertain if it is open or closed blow through it, if it is in the closed position no air will pass. Secure the spindle in a vice and use a spanner to lock/unlock as appropriate. New seal kits specifically for this unit are only available from davidbrown...
by db2d
Wed Aug 14, 2019 9:59 pm
Forum: DBTC Forum
Topic: 94' series 4wd components the same?
Replies: 13
Views: 426

Re: 94' series 4wd components the same?

Crownwheel and pinion shaft are a matched pair
by db2d
Tue Aug 06, 2019 8:18 pm
Forum: DBTC Forum
Topic: VAT Receipt for parts
Replies: 8
Views: 355

Re: VAT Receipt for parts

I have sent you a PM
by db2d
Thu Aug 01, 2019 8:13 am
Forum: DBTC Forum
Topic: Ready for wet sand blasting
Replies: 30
Views: 1693

Re: Ready for wet sand blasting

The other job I am working on is the throttle linkage that runs from the hand control to the governor. The one that came with the tractor has a cut and join in it plus an odd shaped bend where it turns to go to the governor. I was pointing out that the rod should have an adjustable connection. Elec...
by db2d
Thu Aug 01, 2019 1:47 am
Forum: DBTC Forum
Topic: Ready for wet sand blasting
Replies: 30
Views: 1693

Re: Ready for wet sand blasting

I was not wrong and I have no reason to apologise because I was not criticising you or your tractor. I was just indicating how things should be and what parts are available not only to you but others that use this forum.
by db2d
Wed Jul 31, 2019 1:10 pm
Forum: DBTC Forum
Topic: Ready for wet sand blasting
Replies: 30
Views: 1693

Re: Ready for wet sand blasting

db2d wrote:
Sat Jul 20, 2019 8:23 am
There should be a spring inside the hydraulic quadrant. Round rubber knobs are available for the throttle and hydraulic levers that have been adapted.
You confirmed that there was a spring.

I will not answer any questions or make any observations regarding your tractor in future.
by db2d
Wed Jul 31, 2019 10:13 am
Forum: DBTC Forum
Topic: Ready for wet sand blasting
Replies: 30
Views: 1693

Re: Ready for wet sand blasting

The rod from the hand control to the governor should have an adjustment connection in the middle.
by db2d
Sun Jul 28, 2019 6:29 am
Forum: DBTC Forum
Topic: exhaust manifold
Replies: 2
Views: 235

Re: exhaust manifold

New flanges are available from davidbrownparts.com
Try heating the nuts a few times and let them cool and then soak with release oil. Sheared studs can be drilled out but this requires skill and accuracy.
by db2d
Sat Jul 27, 2019 3:42 pm
Forum: DBTC Forum
Topic: 1490 hydraulic return/dump - case drain for hydraulic motor
Replies: 6
Views: 356

Re: 1490 hydraulic return/dump - case drain for hydraulic motor

Returning oil through the filler plug should not be done on a Selectamatic DB.
by db2d
Sat Jul 20, 2019 8:23 am
Forum: DBTC Forum
Topic: Ready for wet sand blasting
Replies: 30
Views: 1693

Re: Ready for wet sand blasting

There should be a spring inside the hydraulic quadrant. Round rubber knobs are available for the throttle and hydraulic levers that have been adapted.
by db2d
Wed Jul 17, 2019 4:39 pm
Forum: DBTC Forum
Topic: 885 Dead Hydraulics
Replies: 7
Views: 502

Re: 885 Dead Hydraulics

If the bleeder is not leaking I suggest leaving it as it is.
by db2d
Mon Jul 15, 2019 9:18 pm
Forum: DBTC Forum
Topic: hand crank start 900?
Replies: 10
Views: 575

Re: hand crank start 900?

The recommend cold starting procedure for the Cropmaster Diesel was to decompress the engine and spin it over until oil pressure was obtained. This procedure was hardly ever carried out. The cranking handle supplied, was intended for maintenance purposes. I have started warm DB engines with the hand...
by db2d
Sat Jul 06, 2019 8:24 pm
Forum: DBTC Forum
Topic: 780 hub seal / wheel bearing
Replies: 5
Views: 434

Re: 780 hub seal / wheel bearing

The ring nut needs to be really tight. This can be achieved by holding the nut and turning the hub with a long bar ( 4 ft + ) placed through the wheel studs with the wheel nuts on to protect the threads, and finally, hitting the end of the spanner with a lump hammer whilst maintaining pressure on th...
by db2d
Sat Jul 06, 2019 1:41 pm
Forum: DBTC Forum
Topic: 780 hub seal / wheel bearing
Replies: 5
Views: 434

Re: 780 hub seal / wheel bearing

Remove the six cap screw/bolts from the seal housing and it can be detached from the reduction casting. The bearing can then be knocked out. Check the collar that the seal is in contact with for wear and replace if necessary. The seal housing and bearing etc have to be fitted onto the hub before ins...