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Getting the best from: Kverneland EG85 reversible plough

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As well as the obvious, we check out a few often overlooked handy set-up hints for the Kverneland EG85 reversible plough.

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Kverneland’s EG85 is one of the best selling ploughs in the firm’s range. A heavy-duty, fully-mounted reversible from four to six furrows, the EG comes with manual or hydraulic front-furrow width adjustment.

 

There are two headstocks, indicating tractor horsepower limits – the EG85/200 series for tractors up to 200hp, and the EG85/300-series for those up to 300hp. Pre-2000 models were equipped with ‘160’ and ‘240’ headstocks.

 

Point-to-point clearance is 85cm (33in), though a 100cm (40in) version (EG100/300) is also available. Underbeam clearance on all versions is 70cm (28in), though riser blocks can increase this to 75cm (30in).

 

Equipped with Kverneland’s proven leaf-spring auto-reset mechanism, the plough also comes with on-the-move Vari-width furrow adjustment from 30-51cm (12-20in). A three-port hydraulic cylinder provides a furrow width memory function, as the plough will automatically close to its minimum 30cm (12in) furrow setting during turnover, then reset back to the chosen furrow width.

 

The Vari-width mechanism uses wear rings and collars for each body assembly and these are easily replaced to keep the mechanism tight.

 

The secret to the EG’s ploughing performance, says Kverneland’s Adam Burt, is down to correct plough settings.

 

“Check the basics before you start – tyre pressures should be the same for left- and right-hand tyres and lift rods should be identical in length,” he says. “Skimmers should be no deeper than 5cm, and wing stops should be set identically for left- and right-hand ploughing.

 

“The plough frame should be parallel to the ground with the top link pin in the centre of the headstock slot to allow the plough to follow ground contours,” adds Mr Burt. “A plough should work at 90 degrees to the land. If you change working depth, remember to adjust wing stops, and if you are ploughing on rolling or sloping ground, you will need to factor in some adjustments.

 

“Any creeping on the hydraulic front furrow is often caused by tractor spool valves, and can be easily rectified by adding a check valve.”

 

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Mouldboard set-up

Mouldboard set-up

Mr Burt says one of the biggest issues with ploughs not matching up properly from left- to right-hand work, can be caused by incorrectly set mouldboards, often a result of them being changed.

 

“The measurement between the back of the bodies should match the point-to-point distance – if wrong, this can steer the plough,” he warns.

 

“When adjusting, always start from the middle body. Neutralise the mouldboard tension by slackening the stay, then tighten the nuts with the mouldboard at the resting position to prevent movement. Then measure across the rest of the mouldboard ends and adjust them if required.

 

“Then take a measurement from a reference point, such as the back of a leg, to allow you to transfer the same positioning on the opposite centre body and repeat the set-up for the other furrows.”

Modifications

Modifications

The 300-series headstock has been available since 2001, though this six-year-old EG85/300 example at dealer Ravenhill’s Shrewsbury depot gets the later style introduced in 2009. This construction uses a welded flat plate on the back of the headstock to add strength and rigidity to cater for higher powered tractors and increased ploughing speeds.

 

Kverneland’s steel treatment processes have resulted in the use of different hardnesses and strengths throughout the plough. This six-furrow version (5+1) weighs just two tonnes, though it will require an 8.2-tonne lift capacity.

 

This model’s Cat III cross-shaft has been superceded by a square bar style with clevis-type ends – the newer style can be easily retro-fitted.

Leaf spring tension

Leaf spring tension

Auto-reset mechanism uses leaf springs to pull the anchor assembly which carries left- and right-hand bodies tight against the beam. Here, the anchor sits on four ball/socket assemblies which creates four-way movement to help each body overcome obstacles.

 

But, to protect the plough, the springs need to be correctly tensioned to work properly. A long spanner supplied with the plough carries two notches, 70cm (28in) apart, to align with the leaf-spring retaining pins – this gives an instant reference for the optimum spring tension.

 

Seven leaves are used on heavy-duty models, with nine fitted to XHD versions. You might find the first body has been fitted with an extra leaf to prevent premature break-back in tough, dry conditions.

 

Two bolts at the end of the leg afford spring pressure adjustment and also positioning of the bar running up through the middle of the leg assembly – the bar should have clearance all around it.

Depth control

Depth control

The EG features a combi-depth wheel, which is also the transport wheel. Relocating one pin allows the wheel to swing into its transport setting when the plough is turned to the butterfly position.

 

Depth wheel damper uses a small quantity of gear oil to create a restriction and leads to smooth operation. If the depth wheel moves suddenly, the ram could need topping up with the correct grade of oil, or perhaps new seals.

 

Pins need moving for the depth wheel stops, to prevent interference when in transport, and then popping back into place to provide correct operation when in work.

Bodies and skimmer selection

Bodies and skimmer selection

No.28 bodies are the most popular option and have been in production since 2001. They are preferred for their extra length, which improves furrow roll and also creates additional firming of furrows. Though this creates the wear characteristics seen here, where the lower part of the body is being worn away from lightly pressing the furrows.

 

If No.8 or 9 bodies are fitted, they can be upgraded to the 28, as the frog is common. Knock-on plough points are also a feature of the EG plough.

 

Ploughs built after 2009 also get quick-adjust skimmers, set using one bolt. There is a cam-type sleeve which rests against the back of the skimmer leg and this offers fine tuning and the ability to hold the skimmer tight against the leg to prevent rattling.

 

Maize skimmers are increasingly preferred to manure skimmers for their tighter curve, which improves trash burial at higher forward speeds.

Spotted on Lamma Xchange

  • 2009, EG85/300, 5+1, high clearance, hyd front furrow, £10,000
  • 2006 EG85/300, 5+1, new metal, No.28 bodies, rear discs, £17,450
  • 1997 EG85/240, 5-furrow, manual front furrow, repainted, £10,750

EG85 retail parts prices (+VAT):

  • No. 28 Mouldboard: £126.55
  • 41cm (16in) share: £26.93
  • Point Holder: £32.63
  • QF Point: £9.18
  • Skim share/point: £9.92
  • Skim MB (maize): £27.90
  • 46cm (18in) disc: £42.28
  • Auto reset leaf springs: £20-30 depending on which spring is required
  • Auto Reset Bushes: £39.67
  • Vari-width wear rings: £26.55
  • Turnover ram seal kit: £38.80
  • Front furrow ram seal kit: £40.25
  • Vari-width ram seal kit: £56.73
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