They are replaced when they go bad.
Depending on the use of the horse is how often a horse should have the shoes replaced. If you are pleasure riding, every 6-8 weeks is a good schedule. More often if the horse has more wear and tear on them and less if you are a weekend rider.
One week
What you meant to ask is how often should the timing belt be replaced! And the answer is every 90,000 miles for b2000 model.Ok
all the time
The Honeywell filter should be replaced every 8- 12 months or as needed.
When they wear out.
about every 2 years
Although there is no set on how often your brakes should be replaced, I would just pay attention to your car. When you notice something wrong, I would call your auto body shop.
When brake shoes needs to be replaced, really depends on certain circumstances: how frequently the vehicle breaks, road conditions, etc. However, a good rule of thumb is to replace your shoes once every 35,000 miles.
Eyeglasses should be replaced typically every two years. Eyeglasses can break or if expiration is past then a new examination should be taken to get a new pair.
every 6 months i think