Why does my Cat 299D2 slow down when hot?

[Marcus Marcus]

My Cat 299D2 loses about 30% of its track speed when the engine and hydraulic oil get hot. What could cause the track speed to drop?

 

[Jonathan Gillispe]

Hey @Marcus Marcus, I've seen this happen when the machine gets hot and the hydraulic system starts losing efficiency. One easy thing to check is the radiator and hydraulic cooler for dirt or debris, since restricted airflow can make performance drop off once everything warms up. A good cleaning is a simple first step before digging into anything more serious.

 

[Luca2880]

I had a similar issue with a 299D2 a while back. In my case,it ended uo beinh hydraulic oil that was getting hotter thab it should, and the machine felt noticeably slower after an hour or two of work. Besides checking tge coolers,keep an eye on hydraulic oil condition and levels too. Goodluck and let us know what you find