McHale C430/C460/C470/C490 Bale Chopper
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5
Tractor requirements & preparation
5.1 Tractor requirements
The minimum recommended size of tractor for operating the machine comfortably
depends mainly on the forage being chopped. For normal conditions, McHale
recommends a tractor size of approximately 60 kW. For the C430 a tractor size of
110 kW is required due to the concentrated weight on the 3-point linkage & the
increased distance to the lower linkage. This allows a longer PTO shaft to be fitted,
giving a safer combined result.
The following items on the tractor are required for attaching to the machine:
1. Drawbar hitch* suitable for a vertical load of at least 1 100 kg and a D value of
at least 50 kN (C460/C470/C490) or a 3-point linkage CAT 2 (C430)
2. ½” female quick-release for hydraulic power supply of minimum 20 l/min @
180 bar
3. ½” female quick-release for return line (must be free flow to tank)
4. 12 V / 7-pin socket for lighting
5. 12 V, 20 A socket or battery power cable
6. 1 ⅜”, 6-spline PTO shaft (set to a speed of 540 rpm)
7. Suitable location to attach safety chain. The safety chain must be attached in
such a way that if the coupling breaks, the hitch or drawbar cannot make
contact with the ground.
* Depending on country of use
5.2 Control box installation
The electronic control box must be located inside the tractor cab in the operator’s field
of vision and within easy reach. Secure the control unit in the tractor cab, using the V-
brackets and fasteners provided. Ensure that the cable to the machine is not under
tension and not near sharp edges, etc. The electric power supply is obtained from the
socket of the tractor.
NOTE: Use good quality oil
Ensure that the tractor has clean, good quality, hydraulic/universal oil to
avoid problems later on. Also, the hydraulic filters on the tractor should
be changed regularly, according to the manufacturer’s service
instructions. Avoid dirt getting into the hydraulic couplings.
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