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Bomag 120 ad3 1995 help

omal1989

Member
Joined
Feb 27, 2019
Messages
10
Location
Ireland
Hi guys , first time poster, we have a bomag 120 ad3 , we bought it at auction and only realised after that it has an issue , engine great ! On the button , moves fine , vibrates good , but if it’s running for 20mins or so it locks on , and will not move until it cools down, I’m guessing the oil heats up , thins a bit then it’s by passing seals or something like that , or it’s lost hydro pressure to move the drums , has anyone had experience of this ? Can anybody help me with what it might be?
 

omal1989

Member
Joined
Feb 27, 2019
Messages
10
Location
Ireland
Also , we had the brakes by-passed so it’s not the brakes , it’s something more serious , previous owner had the rad fan wired to run constant ,
 

mg2361

Senior Member
Joined
Jul 5, 2016
Messages
5,218
Location
Pennsylvania
Occupation
Equipment Mechanic
Will need a serial number. Bomag's have a bunch of serial number breaks for service and parts information.
 

Zach1881

New Member
Joined
Mar 24, 2020
Messages
4
Location
97103
Does anybody have any answers on this? I have a 100 AD does the exact thing.. please help
 
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