Search found 3733 matches

by ollek
Thu Jul 18, 2019 5:42 am
Forum: DBTC Forum
Topic: 885 Dead Hydraulics
Replies: 7
Views: 151

Re: 885 Dead Hydraulics

The spool valve is most likely stock in the up position if it does not move and there is a oil stream from the right hand side of the valve chest. Try to pry the spool valve up and push it down manually a few times if it does not move when you move the main control lever. There are some pictures in ...
by ollek
Tue Jul 16, 2019 6:11 am
Forum: DBTC Forum
Topic: DB885 temp gauge question
Replies: 2
Views: 84

Re: DB885 temp gauge question

When the thermostat opens, the needle will be juts between the yellow and the green field (around 72 to 78 degrees centigrade). When the coolant mixture (50/50%) will boil, the needle will show just between the green and the red field (around 102 to 107 centigrade. All temperatures given for a tract...
by ollek
Mon Jul 15, 2019 8:14 pm
Forum: DBTC Forum
Topic: 885 Dead Hydraulics
Replies: 7
Views: 151

Re: 885 Dead Hydraulics

The hold valve is in the top of the valve chest and the dump valve is on top of the hold valve. It is the dump valve that goes trough a cover that helps to get the tip down quicker, not the hold valve. You will have to remove the dump valve and the cover in order to get to the two plugs for the by-p...
by ollek
Mon Jul 15, 2019 8:01 pm
Forum: DBTC Forum
Topic: hand crank start 900?
Replies: 10
Views: 190

Re: hand crank start 900?

rid54, the discussion is about a DB 900 with diesel engine. There is no need to talk about petrol engines or 1-cylinder Lanz engines.
by ollek
Mon Jul 15, 2019 12:26 pm
Forum: DBTC Forum
Topic: 885 Dead Hydraulics
Replies: 7
Views: 151

Re: 885 Dead Hydraulics

What are you referring to when you wrote "I checked the oil coming from the top of the spool valve"? There is no oil coming from the top of the spool valve, you must be talking about something else than the spool valve. Air in the lift cylinder is not the reason for no lift. Bleeding the lift cylind...
by ollek
Sun Jul 14, 2019 1:10 pm
Forum: DBTC Forum
Topic: 995 valves
Replies: 12
Views: 248

Re: 995 valves

Doing the valves without checking and repairing (if needed) the injectors at the same time does not sound very clever.
by ollek
Sun Jul 14, 2019 9:20 am
Forum: DBTC Forum
Topic: hand crank start 900?
Replies: 10
Views: 190

Re: hand crank start 900?

A diesel engine will not start using a hand crank. Using the compression release lever will reduce the compression to a level when not enough heat is produced to get the fuel ignited. The half compression is used to help in adjusting the valves and finding the top dead centre when the injection pump...
by ollek
Wed Jul 10, 2019 5:47 am
Forum: DBTC Forum
Topic: Case 1394 linkage down not fully
Replies: 1
Views: 118

Re: Case 1394 linkage down not fully

There is a spring load when you push the main control lever forward, if the lowering speed is adjusted to very slow. Try to push the lever fully forward against the spring load and if this helps adjust the lowering speed to faster. If this do not help, then there is a adjustment fault made by someon...
by ollek
Sun Jul 07, 2019 11:43 am
Forum: DBTC Forum
Topic: 90 series loader types
Replies: 2
Views: 146

Re: 90 series loader types

There are several differences between loaders for different tractor models. The loader booms are wider on a 90-or 94 series tractor than for example on a 996 because of a different (wider) bonnet. The loader booms are longer on a 1690 or a 1594 (1694) because of the 6-cylinder engine and therefor lo...
by ollek
Sun Jul 07, 2019 11:32 am
Forum: DBTC Forum
Topic: Hydraulic Control Lever Broken
Replies: 5
Views: 203

Re: Hydraulic Control Lever Broken

Some good and solid instructions given by DB780. After the nyloc nut is fitted, you will need to adjust it so to get the system working correctly. All Selectamatic adjustments can be found in the following link to a page on the David Brown Tractor Club. The page also gives some basic information's a...
by ollek
Thu Jul 04, 2019 1:37 pm
Forum: DBTC Forum
Topic: 885 Fuel Line
Replies: 18
Views: 914

Re: 885 Fuel Line

Fuel stations in Finland can have for sale 4 different diesel fuel to suit different ambient temperatures. Summer fuel for temperatures down to -5 centigrade, interim fuel for temperatures down to -15 centigrade, winter fuel for temperatures down to -30 centigrade and arctic fuel for temperature dow...
by ollek
Wed Jul 03, 2019 7:08 pm
Forum: DBTC Forum
Topic: 1490 Ghost lift
Replies: 12
Views: 418

Re: 1490 Ghost lift

The reason for ghost lift can also be a enlarged pin hole in the small restrictor plate in the by pass valve. Something people are doing if the hole gets blocked with dirt repeatedly. Is sounds absurd, but people do tamper with hydraulics and many other devises. This must not be done, the solution t...
by ollek
Tue Jul 02, 2019 5:46 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 4
Views: 199

Re: 880 Selectamatic Dynamo

Is it possible that you have fritted a dynamo with a bigger belt pulley than the original?
by ollek
Tue Jul 02, 2019 5:02 pm
Forum: DBTC Forum
Topic: 1490 Ghost lift
Replies: 12
Views: 418

Re: 1490 Ghost lift

Further to Alan's post. If any of the valves are sticking, I would strongly recommend to do a full service of the hydraulic / transmission oil and oil filters and screens. Sticking valves is most certainly because of dirt ingress due to neglected service.
by ollek
Sun Jun 30, 2019 2:11 pm
Forum: DBTC Forum
Topic: 1490 Ghost lift
Replies: 12
Views: 418

Re: 1490 Ghost lift

The picture is not that clear, but. It looks like the knob you are referring to is the selector switch. This switch has 3 positions (looks to be 3 dots in front of the knob, draft control, height control and tcu/external, when you turn the knob from left to right. You must keep the main control leve...