Claas Liner 2900 / 2800 twin-rotor centre-delivery rake service schedule

1. Park on level ground, put the rake in working position, switch the PTO and tractor off, take the key out and apply the parking brake.
2. Look over both gearboxes for oil leaks.
3. Take the screw plug out of the inspection opening. Oil must be up to the lower edge. Top up through the filler opening if it is low.
4. Clean the plug and tighten it so it seals.

Tools: Spanner, Funnel, Rags

1. PTO off, tractor stopped, key out, hydraulics locked, and support the machine if it is raised.
2. Clean the nipples. Grease every 20 hour point every 20 hours, the 50 hour points every 50 hours, and so on up to 250 hours. The numbered chart in your handbook shows where each point is.
3. Oil the joints and once-through lubrication points with chain oil as needed.
4. The tractor-end universal drive shaft is on the 20 and 50 hour list; the transfer case shafts are on the 100 and 250 hour list.

Tools: Grease gun, Oil can, Rags

1. Check the swath gearbox bolts (85 Nm), rotor suspension bolts (304 Nm), tine bolts (75 Nm), rotor frame nuts and bolts (207 Nm and M10 48.5 Nm), longitudinal frame nuts (304 Nm), crossmember bolts (323 Nm), cover bolts (10 Nm) and coupling frame M10 nuts (48.5 Nm).
2. Retighten any that have moved. Replace worn or bent fixings and any missing pins.
3. Wheel nuts: 300 Nm on the road running gear and 417 Nm on the guide wheel axle nuts. After fitting a wheel retighten after 10 hours and then every 50 hours.

Tools: Torque wrench, Spanner set

1. Park on level ground with the rake in working position, the PTO off, the tractor stopped and the key out.
2. Put a container under the drain plug, unscrew the drain plug and drain all the old oil.
3. Clean the plug and tighten it so it seals.
4. Fill through the filler opening (screw plug 1) and check the level at the inspection opening.
5. On the transfer case, unscrew and clean the breather valve and check it works, then refit it.

Tools: Drain tray (6 L), Spanner, Funnel, Rags

1. Look at every tine for bending or breaks. Replace damaged tines.
2. Tighten the 12 tine bolts to 75 Nm.
3. Open the spring bracket on each arm and check the holder is at dimension X = 14 mm. If not, slacken the nut, move the holder, retighten and close the bracket.
4. Blow out the open sections of the arms with compressed air every day in harvest, so residues cannot jam the arms.

Tools: Torque wrench, Spanners, Tape measure

1. Look at the overload protection for damage and signs of slipping. Have a workshop work on it if it is worn.
2. Service the PTO shaft following its maker's instructions. Replace damaged guard tubes, cones and chains.
3. After the season, clean and grease the shaft in all parts. In winter, grease the guard tubes so they cannot freeze up.

Tools: Spanner

1. Drive straight for about 100 m and check the rake tracks centrally behind the tractor.
2. If it runs to the right, lengthen the connecting rod; if to the left, shorten it. Refit the pin and split pin and tighten the lock nut.
3. Check the toe-in: the distance between the wheels at the rear rim flange (X2) should be 1–4 mm less than at the front (X1). Adjust the steering rods and tighten the clamps to 50 Nm. Recheck the track.
4. Check the tyre pressure to your handbook.

Tools: Tape measure, Spanners

1. Lower the machine, release the pressure and stop the engine.
2. Check each hose and fitting. Find the leaks with a piece of card or wood, never your hand.
3. Read the date on each hose (for example 1Q/08 is the first quarter of 2008) and replace hoses over 6 years old.
4. If fitted, have the accumulator checked at a workshop every 5 years (50 bar nitrogen).

Tools: Rags, Card (for finding leaks)

1. Clean the rake and take off dirt and stalks, especially in the arms.
2. Grease every point in the lubrication chart, then check the oil levels.
3. Clean and grease the PTO shaft and grease the guard tubes.
4. Check the wheel nuts, hoses and tines and make repairs before the next season.

Tools: Pressure washer (not at bearings, the CLAAS Communicator or decals), Grease gun