Figure 3.15. Wheel Having Tread Worn Hollow Defect With Gage in
Place.
Figure 3.16. Wheel Out of Round With Gage in Place.
3.13. SAFETY APPLIANCES
The steps, running boards, and handholds of all railway equipment are
safety appliances. Lives and limbs of railway workmen are greatly
endangered if these items are broken, loose, or bent. Safety appliances
should be inspected frequently and any defects reported and repaired
immediately. Figure 3.17 shows a typical railway car and its safety
appliances.
3.14. SUMMARY
Preventive maintenance is essential to the operational readiness of
railway cars because it can reduce greatly the possibilities of expensive
and timeconsuming heavy repairs. All car components should have frequent
preventive maintenance checks, particularly the truck assemblies since they
must support the car and be able to ride the rails and negotiate curves
properly. Safety appliances on cars should be inspected often and any
defective ones repaired immediately to avoid endangering the lives of
railway workmen.
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