Buffer plate
Plastic washer
Self-locking nut
The running surfaces of the wheels become worn during operation. This reduces the diameter of the wheels.
|
Buffer plate |
|
|
| |
|
Plastic washer |
Self-locking nut |
Unscrew the self-locking nuts
(4x).
From size 160: remove the
plastic washers (4x).
Remove the buffer plate.
|
|
Measure the diameter of the wheel at multiple
points over the width of the wheel.
The diameter may not be smaller than is specified in the
table.
If the diameter is smaller, the wheel must be replaced.
|
Size |
Maximum permissible wear |
Minimum diameter of wheel |
|
130 |
-3 mm |
127 mm |
|
160 |
-3 mm |
157 mm |
|
200 |
-4 mm |
196 mm |
|
280 |
-5 mm |
275 mm |
|
350 |
-5 mm |
345 mm |
|
420 |
-5 mm |
415 mm |
|
500 |
-5 mm |
495 mm |
This means that the permissible deviation in the diameter of opposite-lying power-driven wheels is limited.
Only with a 4-wheel crane travel drive and 8-wheel cranes: The diameter does not need to be as similar as possible between all power-driven wheels, but only between the respective opposite-lying wheels of the crane.
Determine the difference in diameter of the
opposite-lying power-driven wheels.
The difference in diameter may not be larger than is specified in the table.
If the respective diameters of the wheels deviate from each other by more than this, the wheels must be replaced.
|
Size |
In the case of cranes subject to a lower workload (use in accordance with S2 or B3) |
In the case of cranes subject to a high workload (use in accordance with S3 or B4) |
|
130 |
2 mm |
1 mm |
|
160 |
2 mm |
1 mm |
|
200 |
2 mm |
1 mm |
|
280 |
3 mm |
1.5 mm |
|
350 |
3 mm |
1.5 mm |
|
420 |
3 mm |
1.5 mm |
|
500 |
3 mm |
1.5 mm |
Maximum difference in diameter of the two power-driven wheels.
