• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Section for komatsu d20,21 and similar grey market dozers

dirt_ripper

Member
Joined
Apr 30, 2019
Messages
9
Location
Philippines
Finally got my sprockets welded on don't look to bad, got a top roller that is very hard to turn but not sure if its designed that way or needs to be replaced, has a few minor flat spots but nothing that is wider than a 1/2in

Are sprockets difficult to remove/disassemble so it has to be welded directly? Why not replace the whole sprocket? Just askin, just had my 1st dozer no more than a month..
 

dirt_ripper

Member
Joined
Apr 30, 2019
Messages
9
Location
Philippines
Thanks for the info Krackerjack9..

Sharing my mods on pyramid shoe, to aid traction in dry land..
 

Attachments

  • 20190502_105439.jpg
    20190502_105439.jpg
    1.6 MB · Views: 29
  • 20190502_105539.jpg
    20190502_105539.jpg
    1.6 MB · Views: 27

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
how many hours on your machine?? wish mine was joy stick, you should get lots of trouble free hours out of your machine, lots and I mean lots of good information on this site, I had some friends from the Philippines when I was in Iraq some of the greatest guys you could ever meet and have as friends
 

dirt_ripper

Member
Joined
Apr 30, 2019
Messages
9
Location
Philippines
how many hours on your machine?? wish mine was joy stick, you should get lots of trouble free hours out of your machine, lots and I mean lots of good information on this site, I had some friends from the Philippines when I was in Iraq some of the greatest guys you could ever meet and have as friends
Only 900+ hours. The sprocket is still the original one. I was lucky i got this unit as joystick-controlled steering dozers are rare, as most are lever type. But up to now i'm having a regret as it's better if it's a d21 with hydroshift transmission. Mine is a direct drive. But as the saying goes, you cant have it all..

Are you an army?

Here's the pix of interior, just sharing..
 

Attachments

  • received_2574259886134815.jpeg
    received_2574259886134815.jpeg
    77.6 KB · Views: 31

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
ok had a Mech start tearing into my steering clutches and what a mess, it wasn't due to use that caused them to go bad it was water, the brake band at the bottom end of the drum must have sat in some water for some time or long enough to rust out the rivits that hold the brake material to the band so the material broke loose so I only had about 2/3rd clamping power at best on the drum they might have been 1/4 worn at the most the clutches were just rusted shut ,some were worn real bad others gained material due to rust swelling, I must have pulled out 7 good hand fulls of rust gunk out of the passenger side compartment, the other side was not so bad, I was out of town when the mechanx were doing all this and had bad phone service so it was difficult to find out what would be the best thing to due to combat the water and how it gets in there at least I didn't have oil in there will post some more photos its almost 3 in the am, IMG_0568.JPG IMG_0568.JPG IMG_0571.JPG
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
so for a little over 1500hrs not much wear, I guess im going to silicone all around the gaskets and every year vacuum out what I can to keep the gunk from getting out of hand
more photos some come latter
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
ok got in and wow the steering clutch compartments were just full of dirt and sticks so where the heck did all that come from?? well on the back you see a set of 4 bolt holes then above that another set well most are stuffed with cork, but what I did not know is that this goes right into the clutch compartments so this explains the water , dirt sticks ect.
Took the vacuum cleaner and a blow gun attached to my compressor and the blow gun would stir up the dirt and crap and vacuum did its thing, now what is in the container is nothing to what I pulled out by hand it was just almost 1/4 full or about 2lbs of crapIMG_0575.JPG IMG_0576.JPG IMG_0577.JPG IMG_0581.JPG
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
not sure what the size of those bolt holes are but their not 19mm hex head bolts maybe 21mm head, not sure if tractor supply will have them or not, shot about 7 cans of degreaser and 5 cans or brake cleaner to get things not spick and span but good enough. I was thinking about putting a ripper on the back and use those pre drilled holes to mount some brackets but not thinking of just welding the brackets to the back of the plate but that's another project down the line, there is also a big plug in the side of the dozer just above the drive case on the left or right depending on where your looking from , one could put and air hose thur the bolt holes and then stick a vacuum in the plug hole its about a inch and it will take awhile but it least you could vacuum out some crap if you due have it in the there. The plug is right at about 11 oclock they had to heat it up to get it out but it came out
IMG_0551.JPG
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
Only 900+ hours. The sprocket is still the original one. I was lucky i got this unit as joystick-controlled steering dozers are rare, as most are lever type. But up to now i'm having a regret as it's better if it's a d21 with hydroshift transmission. Mine is a direct drive. But as the saying goes, you cant have it all..

Are you an army?

Here's the pix of interior, just sharing..
no I was a contractor over there, yeah your sprockets are in great shape you should get another 1200hrs out of them
 

dirt_ripper

Member
Joined
Apr 30, 2019
Messages
9
Location
Philippines
so for a little over 1500hrs not much wear, I guess im going to silicone all around the gaskets and every year vacuum out what I can to keep the gunk from getting out of hand
more photos some come latter

How the heck did all those things come from? Do you think those are just rust and gunk from water that sipped in from the cover just beneath the seat?
 

tantoy

Well-Known Member
Joined
Jul 13, 2012
Messages
50
Location
Tacoma, Wa
If you remove that plug, you can stick a socket and extension to tighten the steering clutch bolts. Pay attention to seals next to clutch, one ruined my brand new brake bands and i had to take the clutch /brake all apart again.
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
How the heck did all those things come from? Do you think those are just rust and gunk from water that sipped in from the cover just beneath the seat?
no not under the seat, the back of the dozer in the photo above there are bolt holes with cork in them well these bolt holes go all the way thur into the steering clutch compartments, if the cork is gone then stuff can get in there, the photo just above the sprocket is the rear of the dozer im pretty sure their all the same and those bolt holes go into the steering clutch compartment, so no cork then you will have problems
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
If you remove that plug, you can stick a socket and extension to tighten the steering clutch bolts. Pay attention to seals next to clutch, one ruined my brand new brake bands and i had to take the clutch /brake all apart again.
those bolts should never get loose but I could be wrong
 

dirt_ripper

Member
Joined
Apr 30, 2019
Messages
9
Location
Philippines
I need to check this out..

Well, i started using my dozer on a clay earth. The soil is hard as rock when dry, but very sticky and slippery when wet. It's summer time here in the Philippines. I could say, it's like riding on an untamed bull. Very hard ride. My left arm felt numb afterwards from shifting gear. Mine is a swampy pad, ride could be better on wet soil. Also, it could be better if i had hydroshift trans..
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
turns out my tracks are 5 joints to long and that my track adjuster cylinders need to be pulled out and see whats going on with them, anyone delt with those cylinders or is easier not cheaper to buy them and if so where??
 

Krackerjack9

Well-Known Member
Joined
Dec 3, 2007
Messages
170
Location
working at Camp Anaconda,Iraq
Occupation
working in Iraq right now
turns out my tracks are 5 joints to long and that my track adjuster cylinders need to be pulled out and see whats going on with them, anyone delt with those cylinders or is easier not cheaper to buy them and if so where??
 

JimInOz

Senior Member
Joined
Apr 15, 2008
Messages
508
Location
Victoria, Australia
Dirt Ripper,
Nice machine!

Are you looking for the Brake Adjusters?
Here's a picture of one.Under the seat frame.

There are 2 plugs at the bottom of the steer case...you can remove them periodically,to check for water/oil.
Some guys remove them permanently.Not a good idea when you are working in mud or water.

You can buy a manual on TRADEBIT.

Jim
 

Attachments

  • 011.JPG
    011.JPG
    2 MB · Views: 41
Top