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Search: Posts Made By: johnny88
Forum: Construction General Discussion 09-21-2019, 01:43 AM
Replies: 5
Views: 3,711
Posted By johnny88
Re: 4200xl track motor

The following link is to my posting withing this forum on how to repair your "track motor"


https://rctruckandconstruction.com/showthread.php?t=13525&highlight=4200xl
Forum: Test. 09-10-2019, 02:13 AM
Replies: 5
Views: 6,459
Posted By johnny88
Re: TESTOLA

thanks for your help with the image size. It is in my notes now on how to do it - your way.
Forum: Construction General Discussion 09-04-2019, 11:21 PM
Replies: 4
Views: 4,307
Posted By johnny88
Re: Repairing gearbox on a rc4wd 4200xl excavator

https://i.imgur.com/yyWvN3h.jpg
Forum: Construction General Discussion 09-04-2019, 11:20 PM
Replies: 4
Views: 4,307
Posted By johnny88
Re: Repairing gearbox on a rc4wd 4200xl excavator

https://i.imgur.com/29RHslsh.jpg




https://i.imgur.com/Fow6JPwh.jpg
Forum: Construction General Discussion 09-04-2019, 11:15 PM
Replies: 4
Views: 4,307
Posted By johnny88
Re: Repairing gearbox on a rc4wd 4200xl excavator

https://i.imgur.com/nGgk8v7h.jpg




https://i.imgur.com/TH12Rikh.jpg
Forum: Construction General Discussion 09-04-2019, 11:06 PM
Replies: 4
Views: 4,307
Posted By johnny88
Repairing gearbox on a rc4wd 4200xl excavator

The following links are to a Youtube video I posted on the problems and solutions concerning the gearmotor on the 4200XL
https://www.youtube.com/watch?v=us55rdrZBNU

This video shows how to...
Forum: Test. 09-04-2019, 10:41 PM
Replies: 5
Views: 6,459
Posted By johnny88
Re: TESTOLA

well, my resized photos are still way to large. I will go with your method. I really appreciate your advice - I would not have known what to do. About 2 years ago I posted fotos that were 5MB...
Forum: Test. 09-04-2019, 10:33 PM
Replies: 5
Views: 6,459
Posted By johnny88
Re: TESTOLA

thanks.
I just resized all my photo to about 600k. I will try that now and see. I will put your info into my forum posting notes !
Forum: Test. 09-04-2019, 05:07 AM
Replies: 5
Views: 6,459
Posted By johnny88
TESTOLA

https://i.imgur.com/deXwUr2.jpg
Forum: Construction Equipment 09-04-2019, 02:49 AM
Replies: 5
Views: 3,247
Posted By johnny88
Re: Cat's 1/14 4200XL Build

The only excavator I have used is the 4200XL. Digging out one pathway in my back yard I dug out and moved 2,755 pounds of dirt which equals 1.74 cubic yards. To move the dirt I used the Armageddon...
Forum: Construction Equipment 09-04-2019, 02:42 AM
Replies: 5
Views: 3,247
Posted By johnny88
Re: Cat's 1/14 4200XL Build

The only excavator I have used is the 4200XL. Digging out one pathway in my back yard I dug out and moved 2,755 pounds of dirt which equals 1.74 cubic yards. To move the dirt I used the Armageddon...
Forum: Construction Equipment 11-22-2018, 06:04 PM
Replies: 24
Views: 12,566
Posted By johnny88
Re: scratch built D11 130pounds

Hello,
Your steel dozer is fantastic. Inspired me to build my own out of steel. Currently in the drawing stage. My question is, what Linear Acutators did you use? Thanks
Forum: Construction Equipment 07-28-2018, 10:56 AM
Replies: 3
Views: 1,970
Posted By johnny88
8x8 Armageddon Gearbox output shaft not turning repair

https://s20.postimg.cc/ju6spg1el/1_B.jpg (https://postimg.cc/image/72smixrmh/)

https://s20.postimg.cc/jhfeja6a5/1_C.jpg (https://postimg.cc/image/bbxcl4i15/)
...
Forum: Construction Equipment Tech 03-23-2018, 11:25 AM
Replies: 13
Views: 5,368
Posted By johnny88
Re: 4200XL v1.5 - Replacement Servo Recommendations?

.........One more thing - on my 4200xl the tank and pump are jammed together - not the best design. See photo.

https://i.imgur.com/YE1FG8Nh.jpg
Forum: Construction Equipment Tech 03-23-2018, 03:28 AM
Replies: 13
Views: 5,368
Posted By johnny88
Re: 4200XL v1.5 - Replacement Servo Recommendations?

Now the last thing about the servos. I had to reverse the Channel 8 servo. It needs to be going clockwise. When that is done the servo rotates a bit initially. If you have to reverse any of the...
Forum: Construction Equipment Tech 03-23-2018, 03:17 AM
Replies: 13
Views: 5,368
Posted By johnny88
Re: 4200XL v1.5 - Replacement Servo Recommendations?

For the Hitec HS-5645MG splined shaft go into the socket that controls the valve you need to remove a fillet support. In addition I milled off some more material to match the original servo...
Forum: Construction Equipment Tech 03-23-2018, 03:08 AM
Replies: 13
Views: 5,368
Posted By johnny88
Re: 4200XL v1.5 - Replacement Servo Recommendations?

Look at the attached photos. You need to remove 3 screws that secure the hydraulic pump, and 1 screw that secures the servo/valve frame. All the screws have rubber O-Rings that I presume is to keep...
Forum: Construction Equipment Tech 03-22-2018, 03:39 PM
Replies: 15
Views: 4,518
Posted By johnny88
Forum: Construction Equipment Tech 03-22-2018, 12:39 PM
Replies: 15
Views: 4,518
Posted By johnny88
Re: 4200 XL shear pin repair

Last set of photos. As you can see to fix the shear pin you don't have to remove the track or the motor. If you grind a bevel on the end of the pin it will help with insertion alignment into the...
Forum: Construction Equipment Tech 03-22-2018, 12:32 PM
Replies: 15
Views: 4,518
Posted By johnny88
Re: 4200 XL shear pin repair

one more set of fotos and then I am done with my first forum posting.........

https://i.imgur.com/L9N0mAKh.jpg



https://i.imgur.com/9M736oph.jpg
Forum: Construction Equipment Tech 03-22-2018, 12:22 PM
Replies: 15
Views: 4,518
Posted By johnny88
Re: 4200 XL shear pin repair

The pin size is 2mm. The length is not critical as long as you are in the range of about 29mm - 37mm. I highly recommend purchasing at least a foot of this wire. I have broken 3 - 4 of these pins....
Forum: Construction Equipment Tech 03-22-2018, 12:14 PM
Replies: 15
Views: 4,518
Posted By johnny88
Re: 4200 XL shear pin repair

Here are the next 5 photos.........when you remove the 2 set screws from the drive sprocket cover, clean out the dirt from the hole to get access to the set screw. They are in about 3/16". If you...
Forum: Construction Equipment Tech 03-22-2018, 12:04 PM
Replies: 15
Views: 4,518
Posted By johnny88
Re: 4200 XL shear pin repair

I will attempt to upload some photos of the entire process of replacing the 'shear pin'. I might call those pins the ' drive sprocket output shaft engagement pin'. The very first photo shows dirt...
Showing results 1 to 23 of 23

 
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