Aerial lift replacement criteria

I'm responding on behalf of PSE&G Transportation and Equipment manager, pprocaccini, who asked:

"Team, would you be willing to share your vehicle replacement criteria (age, usage, other?) for the following vehicle classes:

1  Light duty bucket truck <26000 GVW - example Street Light truck

2 Meduim Duty bucket truck >26000 and <33000 - example Trouble trucks

3 Heavy duty bucket truck >33000 and <55000 - example material handlers, overhead trucks

4 Super Heavy duty bucket truvk >55000 - example material handlers

Thanks for the help"

Please feel free to reply directly to this forum post or the original private message.