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NielV

nielv

Member
Joined
Mar 18, 2024
Messages
18
Location
South Africa
Occupation
Managing Director & Diesel Mechanic
Hi Everyone.

Greetings from South Africa.

Currently I'm in the industry of repairing, rebuilding and maintaining Heavy Duty Earth moving machinery, and recently we've started up an engineering sector in the company where we do line boring and bucket repairs.

I used to work for Bell Equipment for a number of years as a Technical trainer, of which I would train the technicians on Bell, John Deere, Liebherr and Bomag machines, so obviously you grow to like the brand above others.

After leaving the company and starting up my own, I've learned a lot on other brand machines also. So far, my favorites would still be Bell, but in addition, I've grown to like Hitachi Excavators, ZX670, ZX870, EX1200, Komatsu Excavators, PC850, PC1250, Komatsu Rigid Dump Trucks, HD785's, HD465's, Komatsu Dozers, D155, D275, D375, D475's.

Hope to get to know most of you in the Forum.
 

funwithfuel

Senior Member
Joined
Mar 7, 2017
Messages
5,661
Location
Will county Illinois
Occupation
Mechanic
Welcome once again. Glad to see ya made it. I see from your resume that you're into big stuff, full blown mining equipment. Good deal. There's tons of advice, opinions and suggestions here. Hope you find it worthwhile to share yours where others could use it.
 

nielv

Member
Joined
Mar 18, 2024
Messages
18
Location
South Africa
Occupation
Managing Director & Diesel Mechanic
what is dangling on the hook in that pic?
Thats the main valve bank. We were busy removing it for repairs.

We had a hydraulic hose and hydraulic pump failure on the machine, and debris entered the valve bank, seizing some of the spools. Had to change out a whole segment of the valve bank due to the damage it had.
 

nielv

Member
Joined
Mar 18, 2024
Messages
18
Location
South Africa
Occupation
Managing Director & Diesel Mechanic
I thought so Niel. That is very cool there is a ton of capped off hoses in there we can't see :)
True that. We had to replace about a third of the machines hoses, and still we had aeration problems after the flush.

Very important to change all the return line o-rings and gaskets too. Thats where the aeration was originating from, and also some return hoses.

We removed avery last hydraulic component from the machine, cleaned, repaired and resealed it all, and replaced it back in the machine.

Started it up around 2 weeks after the initial failure.

Was a nice project, but glad it's over though.
 
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