JP2512891C - - Google Patents
Info
- Publication number
- JP2512891C JP2512891C JP2512891C JP 2512891 C JP2512891 C JP 2512891C JP 2512891 C JP2512891 C JP 2512891C
- Authority
- JP
- Japan
- Prior art keywords
- operating speed
- working device
- tractor
- hydraulic
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
Family
ID=
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