Section for komatsu d20,21 and similar grey market dozers

[shouldabeen]

http://photobucket.com/LancasterCompound
BOTH HOBBIES RIDEN AND DOZIN

 

[darinray]

NICE job. If I wasn't so old that would be fun to ride on.

Darin

 

[Glock]

Same here, probably wreck.

 

[Glock]

Hey all,
I have a 2000 D-20P7 with around 3k hours. I seem to be experiencing problem related to steering clutch. My left side track stops pulling as well as the handle has to be pulled harder than right to turn. I have adjusted both sides according to manual, does this indicate worn clutches on left or possible adjustment is still not quite right. This seems to have occurred slowly but now it is affecting performance. Occasionally machine will seem to lock and not move at all without moving both levers. Thanks for any suggestions.

 

[shouldabeen]

Thanks guys and Darin I will be callin for that part I am reworking the track and need to be finished by January.

 

[dozerdame]

Hydraulics struggling to lift blade

Hello,
I have a D41P-3 Komatsu dozer. Lately it has been struggling to lift the blade. My husband, who is kind enough to maintain my dozer, (in exchange for me plowing our very long driveway) has greased all the hydraulic fittings he can find but it still does not want to lift the blade as smoothly as before.
I don't have a manual for this model. I have one for a newer model but the system is a little different so I'm not sure we have found all the fittings. Does anyone know if there are some that are hidden or harder to find that we might be missing? Or does this sound like some other problem?
I just dropped about $1,700 on undercarriage work so I am hoping to find a cheaper fix this time.
Thanks.
Sheila

 

[darinray]

Hey all,
I have a 2000 D-20P7 with around 3k hours. I seem to be experiencing problem related to steering clutch. My left side track stops pulling as well as the handle has to be pulled harder than right to turn. I have adjusted both sides according to manual, does this indicate worn clutches on left or possible adjustment is still not quite right. This seems to have occurred slowly but now it is affecting performance. Occasionally machine will seem to lock and not move at all without moving both levers. Thanks for any suggestions.

Hmmmm... If your left tracks stops pulling or stall out then yes you have some clutch issues and proabably needs to be tore down and inspected.. Could have oil in there, clutches are wore out, brake drum wore through, etc.

The tracks locks up and bogs motor? Or the tracks stall and don't want to move and doesn't bog the motor?

Darin

 

[darinray]

Hello,
I have a D41P-3 Komatsu dozer. Lately it has been struggling to lift the blade. My husband, who is kind enough to maintain my dozer, (in exchange for me plowing our very long driveway) has greased all the hydraulic fittings he can find but it still does not want to lift the blade as smoothly as before.
I don't have a manual for this model. I have one for a newer model but the system is a little different so I'm not sure we have found all the fittings. Does anyone know if there are some that are hidden or harder to find that we might be missing? Or does this sound like some other problem?
I just dropped about $1,700 on undercarriage work so I am hoping to find a cheaper fix this time.
Thanks.
Sheila

Start with an oil change and strainer and filter change. That is the simple and least expensive fix. Let us know how you make out.

Darin

 

[FurakawaMatt]

Interesting Forum. I see where it would come in very handy to share knowledge. I have a Furukawa CD5PB swamp dozer 1982? (manual trany) that I have had for almost 12 years. It has been very reliable and more that earned its keep though I have had to have the pins and bushings replaced 200 hrs back. I have the number on these if any one needs them as well as oil and fuel filters, Wix and Carquest.

Reading through many of the posts in this topic I have been trying to see if I can puzzle out a way to fix my dozer or if it is scrap metal time. The steering on the right is almost entirely gone and the left is going since I have been using it almost entirely for the means of control. It seems to declutch, since it will roll on the tracks when pulling on the control levers going downhill, there is just no grab for turning the dozer. I know the main clutch is not all that good, but it does work for changing gears though not always returning fully from being depressed.

I expect the parts for this machine are near non existent but reading through about adjusting steering brakes/clutches is a topic I see mentioned. How is this done? Or is that only for the komatsu small dozer? I notice that many of the features of the Komatsu, Mitsi and Hitachi are identical to my Furukawa. I do have a parts manual (Japanese) for the dozer, that has part numbers and expanded drawings of all the components.

Would love to keep this thing going. Thanks for any help that anyone can offer.

 

[Glock]

Hmmmm... If your left tracks stops pulling or stall out then yes you have some clutch issues and probably needs to be tore down and inspected.. Could have oil in there, clutches are wore out, brake drum wore through, etc.

The tracks locks up and bogs motor? Or the tracks stall and don't want to move and doesn't bog the motor?

Darin

Thanks Darin with reply,
tracks will stall and act like machine is in neutral,no stalling. Do you have repair manual to cover this unit and how do I order? Mine is equipped with cab/air which if I understand correctly to get to clutches this requires removing seat to access, is this possible with cab? Maybe by removing rear window? I have read the other posts but to completely remove clutch assembly do you also remove the track sprocket and housing too or it simply lifts from where actuator meets brake band? Thanks again.

 

[darinray]

Thanks Darin with reply,
tracks will stall and act like machine is in neutral,no stalling. Do you have repair manual to cover this unit and how do I order? Mine is equipped with cab/air which if I understand correctly to get to clutches this requires removing seat to access, is this possible with cab? Maybe by removing rear window? I have read the other posts but to completely remove clutch assembly do you also remove the track sprocket and housing too or it simply lifts from where actuator meets brake band? Thanks again.

Yes i do have your parts and the repair manuals and would need your s/n to confirm. You can contact me anytime at dmm@inbox.as

To be able to remove the steering clutches I would think you would have to take the cab off unless there is room for you to stand at the back and leaning over for a couple hours. Send me a pic of the cab setup and then I could tell.

Not the tracks don't have to come off but just have the dozer in the air with proper blocking so you can spin the tracks manually.

Darin

 

[FurakawaMatt]

A follow on question re: Steering problems Furukawa CD5. I notice the level on the dipstick located in front of the main brake is low. I also notice the fluid on the dipstick beneath the seat behind the steering levers is milky. Would either of these cause issues with being able to steer the dozer?

 

[FurakawaMatt]

An oh BTW, the pins and bushing kit for the swamp treads are Berco Kit:
KM -910

Oil filter:
Wix - 51261
Carquest - 85261

Fuel filter:
Wix - 33394
Carquest - 86394

 

[darinray]

Matt, I would say that the oil level in the front one is either your clutch or your tranny dipstick and if it's low enough that would give the steering pump not pressure to be able to release the clutches. Your issue sounds like the clutches are gone or wet with oil when they are suppose to be dry. I think a teardown is in order to find whats really wrong. I can get you parts for your machine but you'll want to choke me becaue the prices are HIGH. Contact me anytime though.

Darin

 

[dozerdame]

Start with an oil change and strainer and filter change. That is the simple and least expensive fix. Let us know how you make out.

Darin

Where exactly is the filter? We have found two filters under the hood but aren't sure which one is the hydraulic filter. Or maybe we are looking in the wrong place. One filer says NAPA coolant filter 4070 and the other says lube 6136-51 Komatsu and is attached to a yellow bracket 6136-51-5111. Think I'm going to call the dealer tomorrow to see if they can help us figure it out.

 

[darinray]

Yeah the dealer shoudl be able to help you out. With your serial number I can look all that up. Let me know if you need it.

Darin

 

[dozerdame]

The serial number that I found under the seat is 06803

 

[FurakawaMatt]

Thank you for the reply Darinray. I figured the clutches were probably gone. Not sure if I have the ability to do a tear down repair. Though it is good to know that parts might be available even if expensive. I might just sell the old machine and pass on to a buyer the person to get parts from.

 

[JimInOz]

Furukawa Owners & Parts

Regarding Furukawa Matt's postings...
I'm trying to contact any owners of FURUKAWA CT5 & CD5 Crawlers,plus owners of HITACHI DX40/45 Dozers.
I want to get a list of owners & parts compiled,as aftermarket parts are extremely hard to get.
If you want to join the list,send contact details & any parts sources to myself:
dozerparts@gmail.com

Jim

 

[darinray]

Thank you for the reply Darinray. I figured the clutches were probably gone. Not sure if I have the ability to do a tear down repair. Though it is good to know that parts might be available even if expensive. I might just sell the old machine and pass on to a buyer the person to get parts from.

What are you figuring this thing is worth. i might buy it for parts IF the price is very reasonable. You can send me a email at dmm@inbox.as if you wish.

Darin