| Component |
Inspect visually for |
Corrective Action |
|
|
| "Wheel and side ring |
mounted" |
Foreign matter |
"Remove any material caught between dual wheels |
tire and wheel |
or in tire treads" |
|
|
|
"Cracks and other damage |
especially on or near mounting surfaces and bolt holes" |
Replace |
|
|
|
Trueness; use dial indicator |
Replace if eccentric or out of round. |
|
|
|
"Lubricant leakage on wheel |
tire or brake drum" |
Correct leakage |
|
|
| "Wheel and side ring |
dismounted: (tire-mounting surfaces |
especially tire-bead mating areas)" |
"Dents |
cracks |
tool damage |
imbedded foreign matter |
and corrosion" |
Remove minor damage and clean parts. Replace unserviceable parts. |
|
|
|
Bare metal |
Clean and refinish |
|
|
| Cone Locknuts |
"Looseness |
when installed; also check by torque wrench" |
Tighten loose locknuts |
|
|
|
Any damage that affects correct seating or that weakens part |
Replace |
|
|
| Hub and drum |
"Damage |
especially if it could prevent correct wheel mounting" |
"Replace unserviceable part. If brakes are at fault |
adjust |
replace |
or repair as necessary." |
|
|
|
"Drum contamination |
cracks |
thin or scorched spots |
heat checking (network of fine cracks) |
scoring (grooves around braking surfaces) |
glazing (usually from lubricant contamination) |
and braking surface that is tapered or too thin." |
"Clean as necessary. If damage or wear not excessive |
cam-grind drum. Replace excessively thin |
rough |
scorched |
or tapered drum. (Heat checking of drum interior occurs during normal heating and cooling from brake operation. Unless cracks are wide and/or deep |
the drum is considered serviceable (if otherwise sound.)" |
|
|
| "Tire |
Mounted" |
"Damage |
foreign objects |
age-checking |
scuff or wear that exposes cord |
worn thread |
cracks |
and ruptures" |
"Replace unserviceable tire. Remove foreign objects from serviceable tire and |
if cord is exposed in small area(s) |
have tire repaired." |
|
|
|
Air leaks through tube or tube valve stem; apply non-corrosive soap solution to locate leaks |
"Replace defective valve core |
then replace cap. Repair tube leak or replace unserviceable tube." |
|
|
| "Tire |
dismounted: Bead" |
"Damage |
especially cutting or nicking by tire tools |
worn or undersize mounting edges |
and signs of corrosion and/or metal reaction with bead material." |
Check same area of wheel for related defects. Replace unserviceable tire. |
|
|
| "Tire |
interior: Tube" |
"Punctures |
foreign matter |
weak spots |
exposed cord |
and manufacturing defects" |
Replace unserviceable tube. Have minor exposed cord repaired. |
|
|
|
"Punctures |
age-checking |
fold-over damage |
thin spots |
porosity |
cracks (especially around valve stem) and manufacturing defects." |
Check same area of tire for related defects. Replace unserviceable tube. Repair punctured tube. |
|
|
| Bearing and cup |
"Damage |
and especially for worn or bent retainers |
loose rollers |
metal particles in grease |
and evidence of incorrect lubrication." |
Replace unserviceable bearing. Repack serviceable bearing. |
|
|
