AERO BUS

RJ-1276-0

Submitted by administrator on Wed, 03/04/2015 - 00:55

The exhaust pipe can crack from engine vibration because it is not secured in a proper way. If this problem is left unattended, it may occur that the noise level exceeds the regulatory value, or that the sheaths of the surrounding wires melt from exhaust gas heat causing a short circuit, in which case at worst the engine may fail to restart.

RJ-1260-0

Submitted by administrator on Wed, 03/04/2015 - 00:55

For vehicles with spring type parking brakes, the rollers at the end of the brake shoe adjusting wedges are not properly heat treated, or the components of the wedges are not properly installed, and therefore, the wedges can be damaged. If this occurs, at worst, the parking brake could fail to function properly, adversely affecting the parking brake performance.

RJ-1259-0

Submitted by administrator on Wed, 03/04/2015 - 00:55

For vehicles with spring type parking brakes, the spring can interfere with another spring or the chamber when the springs are pressed (releasing the parking brake), because the internal measurement of the spring chambers is not appropriate, and because the shape of the spring seats is improper, and therefore, the paint on the springs can peel off causing rust.

RJ-1111-0

Submitted by administrator on Wed, 03/04/2015 - 00:53

For large-sized buses with the hydrodynamic retarder (the auxiliary brakes), because the structure of the propeller shaft connection (end yoke) is improper, the bearing stopper of the cross-shaped joint on the end yoke gets worn out with repetitions of starts and stops, or gets damaged at the time of assembling the propeller shaft. If left unfixed, this can lead to wobbly bearing, causing the propeller shaft to vibrate excessively. At worst, the bearing fixing bracket or fixing bolt breaks off, causing the propeller shaft to fall off.

RJ-1110-0

Submitted by administrator on Wed, 03/04/2015 - 00:53

On certain vehicles, the air hose to rear brake may interfere with the parking brake air hose due to improper position of the rubber clip securing it. If left unfixed, vibration during travel etc. causes the hoses to rub against each other, resulting in wear, and in the worst case, in puncture of the hose. This can cause reduced brake efficiency or make it impossible to release the parking brake.

RJ-1072-0

Submitted by administrator on Wed, 03/04/2015 - 00:53

On certain vehicles, a crack may occur on the flange of the rear hub after driven a lot on a curvy road, because the base of the flange is thin and it lacks strength. Also, a crack may occur sooner, if there is another cause, such as improper processing of the base of the flange, localizing the stress. If left unfixed, the crack can get bigger, and in the worst case, the cracked part gets ruptured, causing the vehicle to stall.

RJ-1056-0

Submitted by administrator on Wed, 03/04/2015 - 00:53

On certain vehicles, a crack may occur on the flange of the front hub after driven a lot on a curvy road, due to the lack of durability of the hubs. Also, a crack may occur sooner, depending on other conditions, such as vehicle maintenance and loading. If left unfixed, the crack can grow. At worst, the cracked part gets ruptured, causing the wheel to fall off.

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