Figure 7.31 :
Check for play in the bushings. Red markings indicate areas on the
bushings.
There are two typical conditions of a worn out bushing, depending on where the bushing is located on the
machine. Read the description and see Figure 7.31.
1. Bale pressure
This is the most typical condition. These bushings are worn the most when the chamber is «full», and the
bale pressure forces the rollers outwards. Thus the most wear on the bushings will be on the outer side.
2. Drive chain
This condition occurs on the bushings that are affected by the drive chain direction. A turning point is
shown in Figure 7.32. The wear is also influenced by the chamber pressure. But not as excessive as for con-
dition 1. Thus the most wear in these conditions are located on the opposite side of the chain contact side.
Figure 7.32 :
Bushings
Inspection
Use a crowbar and inspect each bushing from multiple angles. The worn out areas might be located at dif-
ferent possitions according to how the machine has been used, and which material has been baled.
7.12.2 Permissible wear
Small type, 40 mm
7 MAINTENANCE AND MECHANICAL ADJUSTMENTS 85
To Next Page
Loading...