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Saturday, October 24, 2009

Testing the Deere 7530E Premium

From Farmer's Guardian

Although John Deere showed its E Premium electric generating 7430 and 7530 in late 2007 they only arrived in the UK earlier this year. We chose the popular 7530 which is familiar to anyone who has operated a Deere.

Our 7530 was an E-Premium model that uses an electrical generating flywheel to power components such as the air-conditioning and engine cooling fan.

Not only does this allow the components to be relocated to other areas of the tractor that were restricted by mechanical drives, but offers greater flexibility in how they perform such as reversing the fan to clear debris. But these are not the only advantages.

The engine is said to be more responsive and fuel tests carried out by an Italian journal recently show savings in diesel of around 10 per cent are possible when compared to a conventional 7530. Combining this with Deere’s AutoPowr CVT, which is ZF’s E-Com transmission, should add to this tractor’s fuel sipping abilities.

In the field it performed well with both the six-furrow mounted Dowdeswell and on the 4.6m Cultipress. On the latter, it comfortably reached speeds in excess of 10kph with the tines breaking down any big clods that were smashed further by the DD rings.


The Deere 6.8 litre PowerTech motor is rated at 180hp with the engine revving up to 2,100rpm to a maximum output of 195hp with max torque being 828Nm.

For transport and pto operations, Intelligent Power Management raises engine output to 203hp on the conventional 7530, but because of this model’s electrical generation, the E Premium finds a further 12hp when IPM kicks in.

Our machine produced a mighty 189.5hp at the pto shaft when hitched to the dyno - and this was an unboosted figure.

Engine servicing is every 500 hours with the transmission and hydraulic oil requiring a change every 1,500 hours. The transmission and hydraulics share the same oil.

Raising the bonnet reveals the cooling pack - no fancy unfolding radiators here to aid thorough cleaning, making cleaning out much trickier.

Slide out mesh screens prevent large debris getting sucked in to the radiators though. Deere’s air-filter is positioned up front, making it one of the easiest to access.

Cab access

John Deere has done a very good job of making this six-post cab light and airy, even though it is only marginally larger than the Fendt. Though without a huge growth beneath the steering wheel, there’s much more foot room in the Deere.

The reach and rake adjust steering wheel provides a comfortable driving experience and also suits taller operators.

Because a lot of the tractor functions are contained within the Command Center screen there is no vast array of buttons around the cab - in fact this cab is a bit bland compared to the others. And its not helped by the drab brown interior trim. But there is a useful amount of storage on the side console and the plastic trim fits snugly together.

As this is a six-post cab, you can open a side window to get a bit of fresh air, and this is something that is not possible if you opt for the four-post cab.

Air vents around the steering column can result in chilled knees and this would be more comfortable if air could be distributed more evenly around the cab.


The Command Center screen operates in much the same way as the Power and AutoQuad 6030 and 7030 Premium tractors.

It is in charge of a range of functions, from selecting work lights to setting the linkage lift height, and because this is an E-Premium model, operators can select an auto function for the reversible fan.

It is a small colour screen though, and mounted on the side console does not put this screen in your line of sight. But then, all the performance information can also be found on the dash. The Command Center screen is also fixed into position.

Short-cut keys can be assigned to regularly accessed menus and the highlight function can then be moved around the screen using the dial before using the tick button to confirm.

Armrest controls and console

Autopowr Deere 6030 and 7030s can be supplied with the Command Arm multi-function armrest.

The transmission control lever allows you to alter the speed within one of two sliding ranges - just push the lever past the offset notch to select the second range. The lever’s thumbwheel sets the target speed and is easy to use. It’s so simple it had us looking for other levels of complication.

Like others in this test, the onboard computer alters engine revs according to load for the most economical set-up.

You can also limit engine rpm using a hand throttle. The large plastic finger switches for operating the spool valves are a reasonable size. There are also switches for controlling the rear linkage and engaging the optional auto-steer system.

The steering column powershuttle also looks after the park gear and neutral. If the tractor is left in neutral for more than 10 seconds then the parking lock is automatically engaged. Deere’s power shuttle lever can feel a bit clunky when changing direction, though it is positively engaged.
Rear mudguard controls

Our 7530 came complete with a hydraulic toplink and the relevant mudguard buttons for controlling it to make hitching up easy. It’s possible to select which spool is controlled by which switch using the Command Center screen.

A pair of buttons also look after the rear lift arms, and carry a linkage symbol to differentiate them from the spool buttons - a bit of colour would make it quicker and easier to identify these controls, just as Valtra has done. Lift capacity for the Deere is rated at 9,000kg.

There is also the obligatory pto engage/disengage button. The 7530 comes with 540E, 1,000, and 1,000E rpm speeds, all of which are chosen using the Command Center terminal.

The hydraulic push back hitch gets its own dedicated spool control switch rather than having to swap pipes around, and the spool dust caps are coloured co-ordinated with the in-cab switches.

John Deere 7530E Premium

Good points
  • Very simple transmission controls
  • Familiar control layout
  • Auto reversible fan
  • General visibility
Bad points
  • Bland cab interior
  • Cab space
  • Command Center screen’s size and location
  • Radiator access