Super Contributor

Re: Throttle Body Calibration G3520

The troubleshooting guide for your particular serial number should contain instrutions for all required procedures, do you have the manual and a laptop with CAT ET and a communication adapator?


Without the service tool  (CAT ET) you can't do the calibrations, and you need to make sure you have the most up to date service manual.




Re: Throttle Body Calibration G3520

Do you need any help?
New member

Throttle Body Calibration G3520

Hello everyone, I am new to the forum and looking for some assistance. Im a utilities mechanic for a hospital system, we have 2. G3520 natural gas engines that I perform day to day maintenence on. One of the engines developed a trottle positioning issue and the plan is to replace it. We usually contract out the larger work but we feel this is something we can resolve in house. Before we begin I wanted to source some sort of technical procedure for calibrationg the TB. I put a call out to our rep from CAT but havent received a call back yet. If any one could point me in the right direction or give me some tips I would appreciate it greatly.  Thank you.