Amazone ZA-M twin-disc spreader service schedule

Fertiliser spreaders · ZA-M 02 (manual BAG0233.6, 2025). Older ZA-M: check your handbook

Covers the Amazone ZA-M twin-disc spreader (ZA-M 02: 1002 Special, 1202, 1502 Special, 1502).

Every maker's service job for the Amazone ZA-M twin-disc spreader, counted in hours, with the oils, filters and parts each one needs. Add your implement to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.

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Service intervals

Job	When
Spreading vane and swivel blade check	every 10 hours
Agitator check	every 50 hours
Friction clutch ventilation	every 200 hours or every 6 months
Spread rate check (calibration)	every year
Lateral distribution check (tray test)	every year
Slider basic setting check	every year
Cleaning and storage	every year

Service jobs and parts

Spreading vane and swivel blade check

Discs · every 10 hours

Amazone: check the spreading vanes daily and replace vanes or swivel blades as soon as holes are worn in them. Worn vanes ruin the spread pattern and can break up and be thrown out.

Part	Qty	Notes	Part number
Disc kit with vanes, 18 to 24 m, pair	1	Genuine number per Sparex, which names ZA-M. Also sold as Sparex S.166823. Supplied as a pair of discs with vanes	927777
Adjustable vane kit 260 to 360 mm, RH and LH (18 to 24 m)	1	Genuine number per Sparex, which names Amazone ZA-M (and ZG-B). Also sold as Sparex S.166816. A 300 to 400 mm kit for 24 to 36 m is 1986110. Check the kit against your disc size	1985110
Spreading vanes / swivel blades	1	Check your handbook or dealer for the number	check your handbook
Self-locking nuts	1	Always new when vanes are refitted	check your handbook
Assembly paste	1	Supplied by Amazone	KA059

Step-by-step

Stop the tractor and take the key out. Wait for the discs to stop.
Look for holes worn through the vanes and swivel blades.
To change a vane: take out the fixing bolt and the quick-release bolt, fit the new vane with the open side of the U facing the direction of turn, and put KA059 paste on the threads.
Fit the fixing bolt with a washer and a new self-locking nut, tight enough that the vane can still just be swung by hand.
Fit the quick-release bolt, disc spring (open side towards the disc) and wing nut. Swing the vane to the setting for your width and tighten the wing nut by hand only.

Tools: Spanners, Gloves

Agitator check

Hopper · every 50 hours

Amazone: every week or 50 hours, check with the guard screen closed that the spring cotter pin is in the agitator. The agitator shaft is protected by safety splints.

Part	Qty	Notes	Part number
Agitator safety splint / spring cotter	1	check your handbook	check your handbook

Step-by-step

Stop the tractor and take the key out. Never reach into the hopper with the drive connected.
With the guard screen closed, check the spring cotter pin is in place in each agitator.
Fit replacement safety splints only as the manual shows.

Tools: Torch

Friction clutch ventilation

PTO shaft · every 200 hours or every 6 months

Amazone: 'ventilate' the PTO friction clutch every 6 months or 200 hours, before first use and after long storage. Rust and damp lock the friction faces.

Step-by-step

Take the friction clutch off the gearbox input shaft.
Undo the nuts to relieve the springs.
Turn the clutch by hand to break any rust between the faces.
Tighten the nuts until the springs are 26.5 mm long, then refit the clutch.

Tools: Spanners, Rule

Spread rate check (calibration)

Calibration · every year

Amazone recommends a spread rate check every time the fertiliser changes. It is done on the left side with both discs off, by travelling a measured distance or with the tractor standing.

Step-by-step

Put about 200 kg in the hopper and set the left slider to the expected position.
Take off both spreading discs (wing nut) and screw the thumb screw back into the shaft. Hook the collection bucket under the left outlet.
Travelled test: mark the calibration distance for your width from the manual's table, drive it at working speed with the PTO on, open the left slider at the start and close it at the end.
Standing test: run the PTO and open the slider for the time the table gives for your speed.
Weigh what was collected and multiply by the factor in the table to get kg/ha. Adjust the slider and repeat.
For high rates, halve the distance and double the multiplier. Refit both discs.

Tools: Collection bucket and brackets (supplied), Scales, Tape measure, Stopwatch

Lateral distribution check (tray test)

Calibration · every year

The mobile test rig (collection trays and measuring cup) or the EasyCheck mats check the spread across the bout. Use it when the setting chart does not cover your fertiliser.

Step-by-step

Lay the trays or mats out in the field at the positions the test rig instructions give.
Spread over them by driving back and forth on the tramlines.
Tip each tray into the measuring cup (or photograph the EasyCheck mats in the mySpreader app) and read the result.
Change the vane positions as advised and repeat.

Tools: Amazone mobile test rig or EasyCheck mats

Slider basic setting check

Calibration · every year

If both hopper outlets empty unevenly at the same slider setting, check the slider basic setting: position 8 with a 12 mm pin.

Step-by-step

Open the slide gate hydraulically and open the dosing slider with the setting lever. Never put fingers in the outlet.
Put a 12 mm pin in the opening and swing the lever until it stops on the pin. Lock it with the rotary handle.
Slacken the pointer screw, set the pointer to 8 and tighten it. Take out the pin.
Do both sides.

Tools: 12 mm pin (shank of a 12 mm drill), Spanner

Cleaning and storage

General · every year

Fertiliser is very corrosive. Amazone: wash the spreader, remove deposits from discs and vanes, coat it with anti-rust compound when dry and store it with the sliders open.

Part	Qty	Notes	Part number
Biodegradable anti-rust compound	1		check your handbook

Step-by-step

Wash with plain water, paying attention to the outlets and sliders. Keep the jet 300 mm away, under 120 bar, and off bearings, decals and electrics.
Clean fertiliser off the spreading discs and vanes.
When dry, coat with a biodegradable anti-rust compound and grease the machine.
Store with the sliders open.
Gearboxes: they are maintenance-free. Only if there is fresh oil on the floor or a noisy gearbox, find the leak and top up (input 0.4 L, angle boxes 0.15 L each, SAE 90).

Tools: Pressure washer (max 120 bar), Grease gun

Oils, fluids and capacities

System	Oil or spec	Capacity
Input gearbox	SAE 90 gear oil. Maintenance-free; top up only after a leak	0.4 L
Angle gearboxes	SAE 90 gear oil	0.15 L each
Grease points	Lithium multi-purpose EP grease (Aralub HL2, Beacon 2, Retinax A)

Specifications


PTO shear bolts	M8 × 30 A2-70; order number 1362100 with DE537
Friction clutch spring length	a = 26.5 mm
Slider basic setting	Position 8 with a 12 mm pin
Pressure washer	Max 120 bar, nozzle at least 300 mm away
Road height	Top of reflector no more than 1,500 mm

Known problems

Older ZA-M

Pre-2023 ZA-M spreaders differ; check your handbook.

PTO shear bolt

The PTO yoke is held to the gearbox shaft with an M8 × 30 A2-70 shear bolt. Spares are packed with the spreader. Grease the shaft when fitting.

Repair guides

Uneven spreading and striping (Moderate, 1–2 hours plus a tray test): Stripes in the crop, too much fertiliser in the tractor wheelings or in the overlap, or uneven colour across the bout.
Changing spreading vanes, swivel blades and discs (Easy, 1–2 hours): Holes worn through vanes or swivel blades, bent vanes, or poor spread after many tonnes.
Hopper sides emptying unevenly: agitator R-clip and slider basic setting (Easy, 30 minutes to 1 hour): One side of the hopper empties faster than the other at the same slider setting, one side spreads less, or fertiliser bridges over an outlet.
Discs stop: PTO shear bolt and friction clutch (Easy, 30 minutes to 1 hour): Discs stop or will not turn while the PTO runs, PTO shaft spins on the gearbox flange, or the friction clutch slips after the spreader has stood.
Gearbox oil leak or noisy gearbox (Moderate, 1–3 hours to find and top up; longer if a seal is changed): Fresh oil on the floor where the spreader is parked or on the frame, or a noisy input or angle gearbox.

The full step-by-step guides are in Farmyard Workshop once you add your implement.

Parts list with genuine part numbers

Wear parts per partao.com fitment lists (ZA-M 901/1001/1201/1501 series; site's entry is ZA-M 02, check against your serial)

Wear parts

Part	Part number	Qty	Notes
Spreader vane 220 left	40016571	per left vane	Wear part; source fits ZA-U, ZA-M, ZA-TS

Agitator

Part	Part number	Qty	Notes
Finger agitator	103193	1 per hopper outlet	Wear part; genuine Amazone per partao, fits ZA-M Special/Profis/Ultra/Max and 900-4200

Sources

Open Farmyard Workshop