Lemken Karat 9 K / KU intensive cultivator service schedule

Cultivators and power harrows · Manual 175_4353, edition 04 / 07.2021

Covers the Lemken Karat 9 K / KU intensive cultivator (with hollow discs and automatic tine overload protection). Karat 9 and 9 U: check your handbook.

Every maker's service job for the Lemken Karat 9 K / KU intensive cultivator, 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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Versions: Karat 9 K; Karat 9 KU

Service intervals

JobWhen
Re-tighten wheel nuts and bolts after the first 2 hoursevery 2 hours
Daily check: tyres, hoses, safety equipment and toolsevery 10 hours
Share tips, wing shares and guide platesevery 10 hours
Greasing (folding pins and joints)every 50 hours or every year
Weekly check: wheel nuts and screw connectionsevery 50 hours
Tine shear bolt and share positionevery year
Hollow discs and side shieldsevery year
End-of-season lay-upevery year

Service jobs and parts

Re-tighten wheel nuts and bolts after the first 2 hours

Frame · every 2 hours

Lemken says to retighten the wheel nuts and all other bolts at the latest after the first 2 hours of work.

Step-by-step
  1. Tighten the wheel nuts to the torque for your thread size (M18 × 1.5 290 Nm, M20 × 1.5 380 Nm, M22 × 1.5 510 Nm).
  2. Retighten every other nut and bolt to the torque table in your handbook.

Tools: Torque wrench, Socket set

Daily check: tyres, hoses, safety equipment and tools

Frame · every 10 hours

Lemken's daily inspection covers the tyres, hydraulic hoses, safety equipment and every soil-working tool. Hoses must be replaced 6 years after manufacture.

PartQtyNotesPart number
Hydraulic hose1Lemken-approved onlycheck your handbook
Step-by-step
  1. Check the tyres for damage and wear and the pressure (2.6–2.8 bar on the 10.0/80-12).
  2. Check the hoses for damage and leaks and replace any over 6 years old.
  3. Check that all safety devices work.
  4. Check every tine, share, disc and tool for wear and damage. Replace damaged or worn parts.

Tools: Tyre gauge, Torch

Share tips, wing shares and guide plates

Wear parts · every 10 hours

Share tips and wing shares set the working depth and the full-surface cut. Lemken offers armoured versions with a much longer life. The share base with tip, plate and wing weighs about 12 kg.

PartQtyNotesPart number
Goosefoot share, 200 mm1Genuine Lemken, 200 mm wide, 6 mm steel, listed by Partao for Karat 9. Per tine; check which share your tines carry33720002
Share tip1Per tine. Standard or armoured. Genuine Lemken, check your parts bookcheck your handbook
Wing share1Per tine. Standard or armoured. Genuine Lemken, check your parts bookcheck your handbook
Guide plate1Per tine. Genuine Lemken, check your parts bookcheck your handbook
Step-by-step
  1. Lift the machine about 20 cm, secure it with a support, lock the tractor controls and switch off the engine.
  2. On quick-change tines, use the Lemken hook wrench to swivel the wire of the linch pin back, press the guide plate up against the tine, pull the pin and swing the share base forward and off. It weighs about 12 kg.
  3. On fixed tines, screw the point, guide plate and wing shares to the tine with the screws, to the torque table.
  4. Refit in reverse and recheck all fixings.

Tools: Torque wrench, Lemken hook wrench, Lifting support

Greasing (folding pins and joints)

Lubrication · every 50 hours or every year

Lemken says to grease the pins in the folding cylinders and the folding joints every 50 hours, and before and after the winter break, with Olistamoly 2 or an equivalent grease.

PartQtyNotesPart number
Olistamoly 2 grease1Or equivalent high-quality greasecheck your handbook
Step-by-step
  1. Stop the tractor and take the key out. Wear goggles: grease can escape at high pressure.
  2. Grease the pins in the folding cylinders (a), the pins in the folding joints (b) and the hole in the joint (c), as the chart in your handbook shows.
  3. Grease again before and after the winter break.

Tools: Grease gun, Rags

Weekly check: wheel nuts and screw connections

Frame · every 50 hours

Lemken's weekly check is wheel nuts and bolts. Use thread locker where the handbook says so.

Step-by-step
  1. Check all wheel nuts are tight and retighten to the right torque.
  2. Retighten all other bolts and nuts to the torque in the table and secure with locking compound where required.

Tools: Torque wrench

Tine shear bolt and share position

Leg protection · every year

On tines protected by shear bolts, the same bolt sets the share angle: shallow for deep work or a steep position for hard, dry soil. Lemken says to set all tines the same and tighten the bolt to 113 Nm.

PartQtyNotesPart number
Shear bolt1Genuine Lemken only. Part number: check your handbookcheck your handbook
Step-by-step
  1. Raise the implement a few centimetres and secure it so it cannot drop.
  2. Slacken the nut on the shear bolt and remove it. Knock the bolt out with a suitable drift.
  3. Pivot the tine to the share position needed, put the bolt through the shallow or steep hole and tighten the nut to 113 Nm.
  4. Set every tine to the same position. Never leave a shear bolt out: the tine can swing freely and cause injury.

Tools: Spanner, Torque wrench, Drift

Hollow discs and side shields

Wear parts · every year

Worn discs have sharp edges. Lemken gives the torque for refitting: 46 Nm for hollow disc bolts and 80 Nm for side shields, both with new self-locking nuts.

PartQtyNotesPart number
Hollow disc1Genuine Lemken. Check your parts bookcheck your handbook
Side shield1Genuine Lemken. Check your parts bookcheck your handbook
Self-locking nut6Per disc, new each timecheck your handbook
Step-by-step
  1. Unfold both side sections, raise the machine and secure it so it cannot sink.
  2. Clean the disc and bearing flange so no dirt gets into the bearing.
  3. Undo the six self-locking nuts, take the disc off, clean the flange and fit the new disc with new nuts at 46 Nm.
  4. Side shields: undo the two self-locking nuts, remove the shield, fit the new one with new nuts at 80 Nm.

Tools: Torque wrench, Gloves

End-of-season lay-up

Storage · every year

Lemken lists an end-of-season routine: grease the guide pins, coat the piston rods with acid-free grease, grease all surfaces that could rust and fit the caps.

PartQtyNotesPart number
Acid-free grease1To DIN 51 502check your handbook
Olistamoly 2 grease1check your handbook
Step-by-step
  1. Clean the machine.
  2. Grease all guide pins.
  3. Coat all piston rods on the hydraulic cylinders with acid-free grease.
  4. Grease all surfaces that could rust.
  5. Push the protective caps onto the hydraulic and electrical connectors.

Tools: Grease gun, Pressure washer

Oils, fluids and capacities

SystemOil or specCapacity
Grease pointsOlistamoly 2 grease or an equivalent high-quality grease
Cylinder rods (winter storage)Acid-free grease to DIN 51 502

Specifications

Tine shear bolt torque (share position change)113 Nm
Hollow disc nuts (six, flat-headed bolts)46 Nm, new self-locking nuts
Side shield nuts80 Nm, new self-locking nuts
Tyres 10.0/80-12 AW 8 PR2.6 to 2.8 bar
Wheel nutsM14 125 Nm; M18 × 1.5 290 Nm; M20 × 1.5 380 Nm; M22 × 1.5 510 Nm
Share base with share tip, guide plate and wing shareAbout 12 kg (quick-change tines)
Hydraulic hose lifeReplace 6 years after the date of manufacture

Known problems

Never leave a tine shear bolt out

With the bolt out the tine can swing freely. Fit a new one before work.

Tine springs under tension

A tripped tine may spring back with great force: keep clear until it has returned to work.

Parts list with genuine part numbers

Wear parts per partao.com fitment (Karat 9)

Wear parts

PartPart numberQtyNotes
Goosefoot share 200 mm33720002per tineWear part; genuine Lemken per partao, fits Karat 9
Tine point (left, 250 x 20 mm)3364055per tineWear part; genuine Lemken per partao, fits Karat 9, 10, Kristall 9, 10, Korund 8, 9
Bolt M12x40 grade 10.9 (tine fixing / shear bolt per partao)3014875per tineGenuine Lemken per partao, fits Karat 9/300 and 9/350, Kristall 9, Smaragd 9

Sources

Open Farmyard Workshop

More from Lemken.