Vicon CM 147 / CM 167 / CM 217 / CM 247 disc mowers service schedule

1. Put the cutterbar in work position, stop the PTO and engine, take the key out and wait until the discs have stopped.
2. Wedge a piece of wood between the discs so they cannot turn.
3. Check each knife and bolt. Look for play between the bolt and the knife hole.
4. Knives have two edges. Turn blunt ones over and refit them on the same disc so it stays balanced. The arrow shows the direction of rotation.
5. Clean round the nut and bolt seat before taking a bolt out.
6. Use the correct knife length. Knives too long damage the bearings on the CM 147 and CM 217.
7. Fit new bolts and nuts with every second set of knives.
8. Tighten knife and disc bolts to 90 Nm, and the three support frame bolts to 160 Nm.

Tools: Knife spanner (supplied), Torque wrench (to 90 Nm), Piece of wood, Gloves

1. Cutterbar: after mowing, stand the cutterbar upright and check the next morning when the oil has settled. It should be at the level plug opening (CM 147 has separate level and filler plugs; the others a combined one).
2. Gearbox: set the cutterbar level and remove the gearbox level plug. Oil should reach the opening. The upper plug lets air out while filling.
3. Top up only to the level. Never add more than prescribed.

Tools: Allen key (supplied), Spanners, Funnel

1. Stop the PTO and engine, take the key out and wait until the discs have stopped.
2. Grease the two main frame bar nipples and the four coupling shaft nipples, and the outside of the coupling shaft inner tube.
3. Oil the crank thrust bearing and the stop cam pivots.

Tools: Grease gun, Oil can

1. In the evening, after work, remove the cutterbar drain plug with the Allen key and leave it to drain overnight.
2. Next morning refit the plug and fill through the filler plug until oil reaches the level plug.
3. Drain the gearbox through its level opening, then refill to the opening.
4. Never overfill.

Tools: Allen key (supplied), Drain tray, Funnel

1. Stop the PTO and engine, take the key out and wait until the discs have stopped.
2. Press each belt midway between the pulleys: it should deflect about 15 mm.
3. To adjust, slacken the bearing plate bolts, turn the tensioning nut, then retighten the bolts.
4. Replace belts as a full set, since new and old belts differ in length.

Tools: Spanners, Rule