7
Improper brake adjustment can result in reduced brake
performance or loss of brakes. Reduced brake performance can
lead to property damage, serious personal injury, or loss of life.
!
WARNING
A. Brake Shoes
While the hub/drum is removed the brake shoes also require full
inspection for:
1. Normal wear - 1/16” is minimum.
2. Cracking from heat - Hairline heat fissures are not uncommon in
bonded shoes and pose no cause for concern. If there are any
questions concerning the severity of cracking, consult with an
expert. If the lining is worn to 1/16” or less, or shows irregular wear
or contamination from foreign substances, the shoes should be
replaced with original AL-KO parts. If cracking is severe replace
the shoes.
3. Dirt and other contaminants.
4. The springs are secure and have good tension.
Brake shoes should always be replaced in pairs, both brakes on
the same axle. Failure to replace in pairs can result in reduced
brake performance or loss of brakes which could result in
property damage, serious personal injury, or loss of life.
!
WARNING
Brake shoes are a component subjected to daily use and normal
wear. Shoes are warranted for workmanship but not for normal wear.
B. Brake – Hub/Drum
While the hub/drum is removed for other service work be sure to
inspect the drum for:
1. Cracks in casting, inside or outside.
2. Rough spots, may require sanding.
3. Heat distortion (bluish color).
4. Out of round drums (high spots).
5. Deep scoring of 0.030” and over.
Items 4 and 5 require use of a brake drum micrometer. Resurfacing
of the drum may be required.