1. Enlarge the supporting width, generally the supporting width 1.2~1.5 times the diameter of the hard chrome plated steel bar.
2. When assembling, use sufficiently the adjusting shim to guarantee the space and alignment between the two ends of cylinder of the active arm and the structural support and active arm, thus enhancing the abrasion resistance of the adjusting shim.
3. Improve the structure of material discharge, enlarge the opening and angle of the material discharge so as to decline the pile-up of cut and good for cut discharging smoothly and naturally. By enlarging the space between the lower end of the active-arm cylinder and the joint position with the host where cut is discharged, favoring the discharging of big-size smoothly.
4. Remove regularly the backlog of material according to the operation manual.
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