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D
Section for komatsu d20,21 and similar grey market dozers

Does your machine have a 6 -way blade? If so put a block of wood between the blade and front roller and push back on it. If the grease zert is open it should push back? No heat because there’s seals inside there!
- Dozman
- Post #2,560
- Mar 9, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Just keep pumping the grease in and it will come apart. Then you can clean out the grease and push it back together after you open the fitting next to the grease zero. After the new track is on pump it back up to operating tention
- Dozman
- Post #2,557
- Mar 9, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

They don’t make the D-21 anymore
- Dozman
- Post #2,546
- Feb 10, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Cut this floor mat out of stall mats from Tractor Supply. Hoping to quiet trans noise?
- Dozman
- Post #2,540
- Jan 15, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers
- Dozman
- Post #2,539
- Jan 15, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Does anyone know where to get the black knobs for the control levers? For the Komatsu D21p
- Dozman
- Post #2,536
- Jan 8, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

This is the spring I’m talking about.i need to replace the seal around the idler fork? Just not sure how to get the tension off the track spring? Can anyone help?
- Dozman
- Post #2,535
- Jan 8, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Sorry it’s on a D-21 6
- Dozman
- Post #2,533
- Jan 4, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Has anyone replaced a track adjuster seal? Not sure how to release the spring tension?
- Dozman
- Post #2,532
- Jan 4, 2020
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Hmmm. I guess I need to do some more research? I assume These small D 21 are no longer being made? Not sure where to look other wise? Maybe someone in the forum can help?
- Dozman
- Post #2,530
- Dec 31, 2019
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Can you update the drive controls? I have a D21-p6. And would like to have more modern controls
- Dozman
- Post #2,528
- Dec 31, 2019
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Is it possible to purchase a D21-7 from over seas? Or is it cost prohibitive?
- Dozman
- Post #2,527
- Dec 31, 2019
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

I thought Komatsu 21s used straight 10w oil in the hydraulics? Never herd of the 15w40 before?
- Dozman
- Post #2,155
- Mar 6, 2016
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers
- Dozman
- Post #2,152
- Mar 3, 2016
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

keep in mind they're supposed to come apart.The way Darin explained it is the way I did mine. And a little side note if its that hard to get apart,Then everything inside is probable trash. (Just a thought):)
- Dozman
- Post #2,151
- Mar 2, 2016
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

ffmloyd,The 10w oil we get from Tractor Supply,I have a list of proper oils to be used in this machine.But,not with me. If you go back through the threads I no for sure it's in there.(I no the list is long but very well worth it)
- Dozman
- Post #1,987
- Dec 25, 2014
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

ffmloyd,the empty space on the console is a fuse box.The dip stick closes to the engine is for the transmission (30wt.)The dip stick closes to the rear is ring and pinion gear oil(30wt.)Hope this helps and I use non-detergent oil.
- Dozman
- Post #1,985
- Dec 25, 2014
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Crawlake, I had a similar problem,I thought it was the small hydraulic cyl. But it turned out to be the brakes were not put on correctly.You should be able to look in the adjustment hole and see if the linkage is hooked up correctly and through the hyd. cyl. hole.(Not saying it wasn't installed...
- Dozman
- Post #1,824
- Apr 15, 2014
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Be sure your clutch adjustment fork is at 121mm to the center of bevel gear?And the transmission screen is clean?Is the brake adjustment right?Those brakes can be trickey to put back togather. Hope this helps its just a few thoughts.
- Dozman
- Post #1,816
- Apr 8, 2014
- Forum: Dozers
D
Section for komatsu d20,21 and similar grey market dozers

Crawlake check back through the previous posts with a note pad.There are a lot of tips and great advice I'm sure you'll find the answer.
- Dozman
- Post #1,813
- Apr 8, 2014
- Forum: Dozers