Amazone D9 Special / Super mechanical drill service schedule

1. Check the eradicator coulters for wear.
2. Replace worn ones: take off the nuts and bolts, fit the new coulter and refit them.

Tools: Spanners

1. Lower the drill or support it, stop the tractor and take the key out.
2. Measure each cutting disc. Replace any below 365 mm by undoing the bolts on its front face.
3. Take off the depth control disc or wheel and measure dimension A on the furrow former. Replace it if under 98 mm.
4. Fit new furrow formers with new bolts: the coated bolts must not be reused.

Tools: Rule or tape, Sockets, Gloves

1. Stop the tractor, take the key out and make the drill safe.
2. Set angle B to 40° and measure dimension A on each furrow former.
3. If under 14 mm, take out the bolt and fit a new furrow former and nut.

Tools: Rule, Spanners

1. Lower the drill, unfold the loading steps and open the hopper cover.
2. Clean out the hopper, then close it and fold up the steps.
3. Check the hydraulic hoses for chafing, cuts, cracks and leaks, and their date stamp. Replace any over 6 years old.
4. Wash the drill with the nozzle at least 30 cm away and no more than 120 bar. Keep the jet off bearings and electrics.

Tools: Vacuum or brush, Pressure washer (max 120 bar)

1. Park the drill level.
2. Look at the sight glass. If no oil shows, open the filler neck and top up with the same oil, then close it.

Tools: Funnel, Rag

1. Empty the hopper and seed housings.
2. Take out the linch pin, push the bottom flap lever left and set it to 1 in the hole group, then refit the linch pin.
3. Check the gap between each bottom flap and its metering wheel is 0.1–0.5 mm, and adjust any that are out.

Tools: Feeler gauges

1. Set the metering wheels for the seed (normal, fine or bean) and set the gearbox lever to the start value in the table (normal 50, fine 15, beans 50). The tramline counter must not show 0.
2. Unlock and fold down the funnel rail, take off the calibration troughs and hang them on the funnel rail handles.
3. Lift the drill until the wheels turn freely. Put the calibration crank into the square tube in the right-hand wheel.
4. Turn the crank the number of times the table gives for your tyres, width and test area (1/40 ha, or 1/10 ha for low rates such as oilseed rape) until seed falls from every housing.
5. Weigh the seed and multiply by 40 or 10 to get kg/ha.
6. Use the calculator disc: line up the kg/ha you got with the gearbox position you used, then read the position for the rate you want.
7. Set the lever, lock it and repeat the test until it is right. Refit the troughs.

Tools: Calibration crank (on the drill), Calibration troughs (on the drill), Scales, Bucket

1. Check each depth control disc or wheel for cracks or breaks.
2. To change one: push the lever right down and back in its slot until the disc comes off.
3. Move the axle, bearing, circlips and washers to the new disc, or fit a complete new unit.
4. Refit it, hook the lever notch on the cutting disc bearing seat and pull the lever forward until it locks. Reset the depth hole.

Tools: Spanners