Jim Pemberton is the only one I would trust for this question

[Mike Pailliotet]

How often should I change out the 370 belts?

the rest of you Fidiots suggesting go until you blow, stitching together with paper clips, replacing with bicycle chains or turn them inside out for extra longevity, can just keep yo moufs shut.

 

[Nomad74]

I'm probably due myself on the 870. 2400 hours so far. Way better than my Amtex at every 150 hours.

 

[KevinD]

I think your manual calls for 1000 hours so that would probably be a good # depending on your tension maintenance schedule.

 

[Jim Pemberton]

2000 hours. The belt cooler makes a world of difference on that model.

My service guys tend to be very cautious, but having just interviewed them, they agree.

As Kevin suggested, make sure you check the tension every 100 hours

 

[Mike Pailliotet]

I've never checked the tension, I figure my paper clips were doing their job, how do I goes about that?

 

[Jim Pemberton]

Page 29 of your 370 manual covers it. If you'd like to talk to Paul, I'll have him call you with his tips.

I haven't the "mechanic's touch" when it comes to those things.

Your conversation with him will go something like this:

 

[hogjowl]

No , I think not
That was understandable English

 

[Vincent Feehan]

1/2 deflection

 

[Andy]

check the belts for cracking across the belt. If you keep an eye on them they will give you plenty of warning before they will just snap. For tension, Deflection between the engine and the pump at the greatest distance should be between 1/2 to 3/4 of inch (Just push on it).

 

[jcooper]

My belts(370) lasted for at least 4-5 years. Maybe that goofy little frame fan does help.

Even when one finally did go, it just threw some teeth and thankfully it was very uneventful.

Changing them myself the first time was difficult. Would be much quicker now.

 

[Cleanworks]

Just for Marty, like a woman, you can feel how tight.

 

[KevinD]

I've never checked the tension,

Then I change my answer to 500

 

[The Great Oz]

our conversation with him will go something like this:

David Puddy. Best sitcom character ever.

 

[Mike Pailliotet]

Then I change my answer to 500

I bought it used from SS....they did the initial belt adjustment