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JON, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1113
Experience:  Certified Small Engine Technician
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When I lower deck drive belt gets too loose to power deck,

Customer Question

When I lower deck drive belt gets too loose to power deck
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: Replaced double pulley and bearings and drive belt
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: Don't think so
Submitted: 12 months ago.
Category: Small Engine
Expert:  JON replied 12 months ago.

If this only happens when you lower the deck it sounds like you have a stretched belt or the idler pulley arm is bent

Customer: replied 12 months ago.
Will check idler pulley arm.cuts fine on two highest deck settings.belt almost falls off on lowest.
Expert:  JON replied 12 months ago.

if idler pulley arm is fine and the no pulley is bent downwards, I would replace the belt