REM - GRAINVAC VR12 4. OPERATION
4.5. TRACTOR REQUIREMENTS
9000-00-0042 R3 33
4.5. Tractor Requirements
The GrainVac is designed to be used with agricultural tractors. To ensure optimal perfor-
mance, the following list of tractor specifications must be met:
1. Horsepower:
• Minimum of 130 hp (97 kW).
2. Drawbar Dimensions:
• The tractor drawbar dimension must be 16” (406 mm) between the end of the
tractor PTO shaft and drawbar pinhole center for the 1000 rpm (see Figure 4.1).
This will provide sufficient clearance for turning and allow telescoping of the
shaft. Consult your tractor manual for the drawbar adjustment procedure.
Figure 4.1 Drawbar
3. PTO Shaft:
• The tractor PTO shaft must be 1000 rpm, 21 spline, and 1-3/8” (35 mm) diame-
ter. Do not use on a tractor with a 540 rpm PTO because there will be insufficient
output capacity.
4.6. Positioning and Set-Up
1. Attach the GrainVac to the tractor as detailed in Section 3.2. on page 28.
2. Transport or move the GrainVac to the job site.
3. Set the tractor’s park brake, stop the engine, and remove the ignition key.
4. Take the PTO driveline from its storage position by lifting the shaft out of its PTO
holder.
5. As shown in Figure 4.2, compress the collar on the yoke to retract the inner locking
pin. Connect the yoke over the tractor shaft, rotate the shaft to align the splines if
required. Slide the yoke on the shaft with the collar released until the lock pin clicks
into position. Make sure the driveline is attached firmly to prevent unexpected
separation.
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