Checking breaker box
Checking for cracks and indentations
- 1.Check the complete breaker box for cracks.
Cracks may be caused if the material is overstressed - frequently as a result of metallic contact between the percussion unit and the breaker box.
Contact between percussion unit and breaker box at these points can cause indentations and marks.
The cause is wear to the guide plates in the lower zone, which allows greater freedom of movement in the upper zone leading to contact with the breaker box.
Indentation at shock absorber bearing points:
Checking wear protection
- 1.Check the lower area of the breaker box for wear.
The reinforcement in the lower area of the breaker box is frequently subject to wear. To avoid having to replace the breaker box or the bottom plate, the worn parts can be removed and replaced by new ones.
The complete wear protection set can be purchased from Construction Tools.
Complete replacement of wear protection set (see chapter Repair work).
Checking wear to bottom plate
- 1.Check the bottom plate for wear.
Frequently, repeated contact with the material being broken results in serious wear to the bottom plate. To avoid having to replace the complete breaker box in such cases there are two possible remedies:
The complete wear protection set can be purchased from Construction Tools.
- 1.Replacement of complete bottom plate (see chapter Repair work). New bottom plates can be purchased from Construction Tools.
- 2.In special cases the worn bottom plate can be repaired by build-up welding.