5
Knives and counter-knife
Observe to re-tighten screws by using the safety discs. The machine is equipped with
a simply exchangeable and reversible counter-knife in tapered execution. It has two
sharp edges. Avoid from dirt when disassemble – mounting the counter-knife, clean
the surfaces from dirt and chips.
Attention:
Use only spare parts origin JENSEN. No warranty in case of using other
products. In case of spare part order always mention the number of this machine.
Technical Specifications for woodchippers
Maximum wood diameter: (depending on wood and engine)
A141 = 26cm
A041 = 30cm
A231 = 24cm
A240 = 24cm
A328 = 20cm
A340 = 20cm
A425 = 18cm
A428 = 18cm
A518 = 12cm
A521 = 13cm
A528 = 15cm
A530 = 15cm
On heavy feed please watch the rpm of the chipper-disk!
In case the rpm drops, you should disengage the hydraulic feed rollers and do not
engage again before the machine is back to the full rpm.
Necessary power:
with 2 knife and mixed bushes you need about 10 KW.
The power you really need depends on the sorting and the kind of the wood, the
speed of feed and the number of knifes in your machine.
Caution!
Knife-screws and all screw on the transportation-axle should be controlled
regularly and tightened following the table:
Forces for bolts and nuts:
Size
Nm 8.8 Nm 10.9 Nm 12.9
M5
6
8,5
10
M6
10
14,5
17
M8
25
35
42
M8x1
27
38
45
M10
49
72
86
M10x1,25
52
78
90
M12
86
125
145
M12x1,25
95
138
160
M14
135
200
230
M16
210
310
360
M16x1,5
225
330
385
M20
410
610
705
M20x1,5
460
680
790
M24
710
1050
1200
M24x2
780
1155
1280
¾”
340
