Filter
Top Products
Rotary Mowers 19
Toro University Technical Training
Belt noise
Belt Chirp
• Chirp occurs on all types of belts.
• Caused by momentary slippage.
• Dust can be a contributing factor.
• Never apply belt dressing.
• Chirps or squeaks will not harm
belts.
Belt Squeal
• Occurs during shaft acceleration.
• Result of insufficient Tension.
• Requires prompt attention.
Chirp
Chirp
A belt chirp is a small chirp or squeak that happens
during start-up of an implement. It is caused by
normal slippage an is completely normal. Never
instruct the customer to use belt dressing to prevent
chirps or squeaks. Do not recommend belt dressing
actually for any belt problem. Belt dressing is only a
band-aid and not a fix.
A belt squeal occurs during rapid shaft acceleration
or it can also occur under heavy load conditions. It is
usually caused by insufficient tension. A squealing
belt requires prompt attention because as the belt
squeals an extremely large amount of heat is
generated on the pulley. This heat will very rapidly
damage the belt and the pulley.
There are a few operational problems that the
customer may notice. These include, belt squeal, a
belt chirp or squeak, and vibrations or whipping.
Belt vibration or whipping
Whipping or vibrations are usually caused by
insufficient belt tension. The belt is too loose and it
will vary it’s position in the pulley groove. To address
this problem adjust the belt according to the
manufacturers guidelines. If this situation is not
addressed, the belt and/or surrounding components
may be damaged.
Belt turnover
If you ever experiences a belt that flips or turns over
on the pulley, the belt must be replaced. As the belt
flips the cords in the belt will be stretched and the
belt will not want to run true again. The belt will
continuously turn over after that.