Krone KW 5.50/4x7 and KW 5.52/4x7 service schedule

Tedders and rakes · KW 5.50/4x7 from machine no. 523 800; the KW 5.52/4x7 replaced it

Covers the Krone KW 5.50/4x7 and KW 5.52/4x7 (4-rotor tedder).

Every maker's service job for the Krone KW 5.50/4x7 and KW 5.52/4x7, 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.

Track your KW 5.50/4x7 and KW 5.52/4x7 for free

Versions: KW 5.50/4x7 (older); KW 5.52/4x7 (newer; service data taken from the 5.50 handbook, check your own)

Service intervals

Job	When
PTO shaft and grease points	every 8 hours
Tine bolt check	every 10 hours
Tine replacement and tine angle	every year
Winter storage	every year
Start-up after winter storage	every year

Service jobs and parts

PTO shaft and grease points

PTO shaft · every 8 hours

Krone's lubrication figure gives 8, 20 and 40-hour points on the PTO shaft and tedder. The figure couldn't be read, so this task is set at the shortest, 8 hours; follow the figure in your handbook for the 20 and 40-hour points.

Part	Qty	Notes	Part number
Grease	1	Multi-purpose	check your handbook

Step-by-step

Lower the tedder in work position, disengage the PTO, stop the tractor engine and take the key out. Wait until the rotors have stopped.
Grease the 8-hour points on the lubrication figure: the PTO shaft joints first.
Grease the 20 and 40-hour points when due, as the figure shows.
Follow the PTO shaft maker's own instructions too.
Check the guard is complete and chained, and the tubes still overlap properly.

Tools: Grease gun, Rags

Tine bolt check

Tines · every 10 hours

Krone: check the tine bolts after the first hours of work, tighten to 95 Nm if needed, then check them daily. Set here at 10 hours as a working day.

Step-by-step

Lower the tedder in work position, disengage the PTO, stop the tractor engine, take the key out and chock the wheels. Wait until the rotors have stopped.
Check each tine bolt and tighten any loose one to 95 Nm.
On a new tedder or after fitting new tines, do this after the first few hours.

Tools: Torque wrench (to 95 Nm), Spanners, Gloves

Tine replacement and tine angle

Tines · every year

Broken or bent tines are thrown into the crop. Krone says the tines must stand square to the ground, set by an eccentric locked with a 95 Nm screw. Clockwise and anticlockwise rotors take different tines.

Part	Qty	Notes	Part number
Tine, clockwise (green), KW 5.52/4x7	1	As needed. UK Krone dealer lists it for KW 4.62, 5.52, 6.72, 7.82, 8.82 and 10.02	1530143
Tine, anticlockwise (beige), KW 5.52/4x7	1	As needed. Partner of 1530143	1530152
Tine, KW 5.50 (older)	1	Sparex sells pattern tines as fitting Krone 1530141 (right) and 1530151 (left) for older KW models. Check against your machine number with a Krone dealer	check your handbook

Step-by-step

Lower the tedder in work position, disengage the PTO, stop the tractor engine, take the key out and chock the wheels. Wait until the rotors have stopped.
Wear gloves. Check every tine for cracks and bends, and every tine arm for bends.
Replace damaged tines with the type for that rotor's direction and torque the bolt to 95 Nm.
Check the tines stand square to the ground. If not, undo the securing bolt, turn the eccentric to the next position and tighten the adjusting screw to 95 Nm.

Tools: Torque wrench (to 95 Nm), Spanners, Gloves

Winter storage

Storage · every year

Krone's winter storage list.

Part	Qty	Notes	Part number
Rust preventer	1	For bare metal	check your handbook

Step-by-step

Lower the tedder, disengage the PTO, stop the tractor engine and take the key out. Wait until the rotors have stopped.
Clean it thoroughly: dirt holds moisture. Don't aim a pressure washer at the bearings.
Check moving parts and joints move freely. Take off, clean and check worn ones and replace them if needed.
Oil all joints and grease the whole machine.
Grease the PTO shaft guard tubes so they don't freeze together.
Touch up the paint and coat bare metal with rust preventer.
Only jack it with a suitable jack and support it securely.
Store it somewhere dry, away from fertiliser.
List the spare parts you need and order them in good time.

Tools: Grease gun, Oil can, Brush, Touch-up paint, Jack

Start-up after winter storage

Storage · every year

Krone's start-up list. The main gearbox is grease-filled for life (GFO 35, 0.5 L), so just look for leaks.

Step-by-step

Wipe off the preserving grease and oil.
Do every job in the maintenance chapter: tine bolts at 95 Nm, all grease points, guards.
Check the tyre pressures (1.5 / 2.0 bar as the technical data gives) and that the wheel nuts are tight.
Check the main gearbox for grease leaks.
Read the operating instructions through again.

Tools: Tyre pressure gauge, Torque wrench (to 95 Nm), Grease gun, Rags

Oils, fluids and capacities

System	Oil or spec	Capacity
Main gearbox	Flowing gearbox grease GFO 35 (filled, maintenance-free)	0.5 L
Grease points and PTO shaft	Multi-purpose grease

Specifications


Working width	5.50 m
Rotors	4, with 7 tine arms each
Output	About 5.5 ha/h
Transport size	2.93 m wide, 2.80 m high
Power needed	18 kW (25 hp)
PTO speed	540 rpm max; about 450 rpm for drier crops
Weight	560 kg
Tyres	16/6.50-8
Tyre pressure	1.5 / 2.0 bar
Hydraulics	Max 200 bar
Tine bolt torque	95 Nm
Spreading angle	15°–19°, two wheel positions
Tine loss protection	Extra tine-loss cable kit is an accessory

Known problems

Thrown tines

Krone asks for a daily tine bolt check. A tine-loss cable kit is sold as an accessory if the crop goes to a forage harvester or wrapper.

Which handbook

The KW 5.50 and 5.52 use different tines. Check your machine number against the handbook and parts book before ordering.

Repair guides

Tine breakage: tine bolts, tine angle and working depth (Easy, 30 minutes to 2 hours): Tines breaking, bending or being thrown out, tines not standing square to the ground, or crop contaminated with soil.
Poor spreading, crop damage and PTO shaft checks (Easy, 30 minutes): Crop not spread evenly, dry crop shattered, crop thrown over the boundary, or the PTO shaft or guard catching.

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

Parts list with genuine part numbers

Krone KW 5.52 tedder tines (Partao fitment lists, listed as KW 5.52/4)

Wear parts

Part	Part number	Qty	Notes
CV tine with bushing, outside	1524870	1 per tine	Wear part. Partao lists KW 5.52/4 (this entry is 4x7 version, check handbook)
Tine arm, left discharge	1542981	1 per arm	Wear part. Partao lists KW 5.52/4; 300 mm

Sources

Open Farmyard Workshop