New Holland BigBaler 870 / 890 / 1270 / 1290 PLUS service schedule

1. Park level and stop the PTO and engine.
2. Tighten every wheel nut to between 520 and 580 Nm. The correct values are also on the wheel rim decal.
3. Do this daily in the first week and then every 50 hours.
4. Check tyre pressures against the decal 51450278 at the same time.

Tools: Torque wrench (up to 600 Nm), Tyre pressure gauge

1. Stop the PTO and engine, apply the flywheel brake and secure the safety latches.
2. Grease the stuffer clutch pawl and clutch housing, the knotter clutch pawl and housing, and the knife insert pivots on RotorCutter machines.
3. Check the grease level of the automatic greasing system and the oil level of the automatic oiling system.
4. Check the drive chain tension.

Tools: Grease gun, Rags

1. Stop the PTO and engine, apply the flywheel brake and secure the latches.
2. Grease the 50-hour points from the chart in your handbook.
3. Drain the condensed water from the air reservoir every 50 hours if you have air brakes: pull and hold the ring on the cock and wear eye protection.

Tools: Grease gun

1. Park the machine level at the working hitch height.
2. Check each gearbox sight glass or level plug and top up if low.
3. Check the bale density hydraulic oil level and top up with HVLP 46.
4. Check the blow-off compressor lubrication circuit oil level if fitted.

Tools: Funnel, Rags

1. Engage the trip arm safety lock before working on the knotter, twister or needles. Moving parts can run on after drive is disengaged.
2. Brake check with no twine in the needles: run at 540 rpm PTO, trip the knotter and see if the needle yoke falls by its own weight on the way down. If it does, tighten the nuts a little at a time and keep the springs equal.
3. At the normal 1,000 rpm PTO, trip the knotter a few times. The clutch arm must not be lifted every time the lobe passes the clutch roller if the setting is right.
4. Change the shear bolt every 2,500 bales. Turn the flywheel by hand until the decal mark on the main gearbox crank lines up with the plate, so the knotter timing mark lines up with the knotter gearbox mark, apply the flywheel brake, then fit the bolt.
5. If the knotter PTO shaft has turned for any reason, fit the shear bolt only at the timing mark.

Tools: Spanners, Torque wrench, Gloves

1. Stop the engine and secure the machine.
2. Remove the pick-up guard over the damaged tine, loosen the bolt and take the tine out.
3. Fit the new tine on the tine bar lined up like the others, with the loop in the notch of the cast block.
4. Refit the guard. Check the stripper plates are 1 to 3 mm from the auger.

Tools: Spanners

1. Stop the PTO and engine, apply the flywheel brake and secure the latches.
2. Give the flywheel bearing at least 6 strokes of the grease gun.
3. Grease the other 100-hour points on the chart.
4. On the pick-up slip clutch, do not give more than 2 strokes.

Tools: Grease gun

1. Park level with the hitch at the height used when hitched to the tractor. Stop the PTO and engine.
2. Main gearbox: drain through the plug (clean the magnetic plug first), refit it, clean around the filler/breather plug, fill until the oil reaches between halfway and three quarters of the sight glass, then refit the plug.
3. Stuffer gearbox: drain through the plug, refit it to 30 Nm, fill through the filler plug and refit it to 30 Nm.
4. Knotter gearbox: drain, refit the plug to 30 Nm, fill through the filler plug and refit it to 30 Nm.
5. Check all three oil levels every 50 hours with the machine level.

Tools: Drain trays (25 L for the main gearbox), Torque wrench for the 30 Nm plugs, Funnel, Gloves

1. Fully retract both bale density cylinders.
2. Drain the oil through the plug, refit the plug and fill the reservoir through the filler tube.
3. Clean around the filter, remove the spin-on filter, fill the new one with oil and oil the seal.
4. Screw on the new filter by hand, firm but no tools, top up, run the machine and check for leaks.
5. Ask your dealer to bleed the system.

Tools: Drain tray (15 L), Filter wrench (hand tight only on refit), Funnel

1. Stop the engine, apply the flywheel brake and engage the safety latches.
2. Take off the scraper plate at the knife that needs adjusting.
3. Loosen the nuts and add or remove shims on top of the knife.
4. Take off the nuts and put thread locker on the bolt threads, refit and tighten the nuts, then refit the scraper plate.

Tools: Spanners, Feeler gauges, Shims, Gloves

1. The twine finger roller is spring loaded: trip the knotter, turn the flywheel until the roller is on the cam surface closest to the knotter shaft so spring tension is lowest, wedge the roller arm off the cam and loosen the nut.
2. Remove the roller, grease the new roller through its fitting and fit it.
3. Have the dealer check the knotter clutch roller and turn the gearbox cranks.
4. Replace all hydraulic hoses every six years: they age without showing it.

Tools: Allen key 6 mm, Spanners, Wedge

1. Engage the trip arm safety lock, stop the engine and take the key out.
2. Check and adjust the needles as in the handbook's needles section.
3. Burnish the needle/knotter brake by letting the needle yoke move slowly a few times, then recheck the brake adjustment.
4. Burnish the stuffer brake the same way and recheck.
5. Check the knotter fans and clear dust from the knotter area.
6. Heavy-duty plastic twine of 110 to 150 m/kg is the type listed: check your handbook for sisal and for the minimum knot strength.

Tools: Gloves, Spanners

1. Remove the bolts and take the insert notch from the stuffer clutch and the knotter clutch.
2. Refit them swapped over using the same number of shims, with Loctite 270 on the threads.
3. Tighten M10 bolts to 50 to 65 Nm and M12 bolts to 85 to 105 Nm.
4. After two years order new notches and fit them to the same specification.

Tools: Spanners, Torque wrench, Thread locker (Loctite 270)

1. Main drive slip clutch: check the spring length with the special gauge tool (44.4 mm for 870 and 890, 42.9 mm for 1270 and 1290). Adjust all springs equally in a clockwise direction.
2. To burnish a slip clutch, loosen the nuts slightly until the springs are released, block the packer with a wooden block, turn the flywheel by hand until the clutch slips and retighten the nuts until the springs are the same length as the bushings.
3. Do not change the preset torque of the packer clutch.
4. Never reset the rotor cut-out clutch with the tractor PTO engaged.

Tools: Spring length gauge tool for your torque, Spanners, Wooden block

1. Engage the flywheel brake and the safety latches before opening shields.
2. Retract the knives when working in the feeder area, unless you are servicing them.
3. Use compressed air to remove chaff and debris from cracks and corners.
4. Oil all linkages, threaded rods and pivots, including the guard pivots.
5. Brake adjustment: the brake cylinder should extend no more than 70 to 80 mm (hydraulic) or 45 mm (air chamber). If it is more, adjust the lever.

Tools: Compressed air, Oil can