Features

23-hp (17.2-kW) V-twin engine

The tractor is powered by a John Deere iTorque power system, a combination of engine features and an exclusive hood design that provide superior lugging ability, even cooling, and durability.

A 23-hp (17.2-kW) V-twin engine provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions.

Key engine features include:

• 23 hp (17.2 kW)
• Large 44.3 cu in. (726-cc) displacement
• V-twin air-cooled design that provides smooth, quiet power
• Quality features include:
  • Cast-iron cylinder liners
  • Overhead valves
  • Full-pressure lubrication
  • Replaceable oil filter
• Dual-stage air cleaner V-twin design:
  • Excellent power and performance
  • Easy starts
  • Smooth operation

Flywheel alternator

A flywheel alternator provides plenty of capacity to quickly recharge the battery and power electrical equipment, such as lights or a sprayer:

• 12-amp charging capacity
• Regulated to keep the battery at full charge without risk of overcharging

Fuel tank has large, 3.3-U.S. gal. (12.5-L) capacity

Fuel tank

Electronic fuel gauge

Large fuel tank and convenient fuel gauge minimize the number of stops for fuel and chance of running out of fuel:

• Fuel tank has a large, 3.3-U.S. gal. (12.5-L) capacity for more hours of operation between refills.
• Large, 3-in. (7.6-cm) diameter fuel tank filler opening makes adding fuel easy.
  • Located on the left fender
  • Helps eliminate spillage
• Electronic fuel gauge on the dash display allows the operator to easily monitor the amount of fuel in the tank.

X394 with Accel Deep 48A Mower Deck

Accel Deep 48A Mower Deck

The 48-in. (122-cm) Accel Deep Mower Deck is a stamped-steel, deep, flat-top design that delivers excellent cut quality, productivity, cleanliness, durability, and versatility. Optimal performance and dispersion of clippings is provided, even at faster mowing speeds or in tall grass:

• 4.83-in. (12.3-cm) depth throughout the entire deck shell for optimum mowing, mulching, and bagging performance
  • Optional lever-action or electric one-touch MulchControl™ system provides superior mulching performance and versatility.
• Stamped-steel design eliminates sharp edges and corners where material can build up and diminish mowing performance
• Mower deck is suspended from the vehicle for a smooth and level cut
  • Adjustable mower wheels, positioned just above ground level, help reduce scalping 
• 0.25-in. (6.4-mm) cut-height increments allow the mower to be set at the desired cut height
• Compatible with high-performance Power Flow™ material collection systems
• For use on X330, X350, X354, X370, X380, X384, X390, X394, X570, X580, X584, and model year 2016 and newer X590 Tractors

Excellent cut quality

48A Mower Deck top (similar mower from X700 Series Tractor shown)

48A Mower Deck underside (similar mower from X700 Series Tractor shown)

Deep mower-deck stamping gives excellent cut quality. It allows the cut and suspended material room to exit the deck without getting recut:

• Reducing the amount of recutting enables more power to be used to cut incoming grass, which greatly improves mower capacity.
  • Helps maintain excellent cut quality at faster mowing speeds
• Clean flow of material out of discharge area prevents cut material from interfering with cutting the incoming grass, making it possible for the blades to cut incoming material cleanly.
• Even in mulching mode, cut evenness is improved compared to other designs because the additional depth allows for continuous circulation, optimal recutting, and an even distribution of clippings.
• Exact Adjust deck-leveling system allows for easy and accurate leveling of the mower deck.

Productivity – getting the job done fast

Right side of Accel Deep 48A Mower Deck

Deep mower-deck stamping gives high productivity, which gets the job done fast. It allows the cut and suspended material room to exit the deck quickly, reducing the amount of recutting so more power is available to process incoming grass:

• Greatly improves mower’s capacity to maintain excellent mowing performance in difficult mowing conditions and at higher speeds

Large discharge opening is both high and wide to handle more material:

• Gives a smooth, even discharge of clippings at all mowing speeds
• Reduces the chance of plugging, especially important when operating in wet, thick, or dense grass and when bagging
• The 48A Power Flow blower has an inlet housing with over 50 percent greater area than the 48X Power Flow blower used on previous machines.

Cleanliness – for the mower and the operator

Accel Deep 48A Mower Deck

Accel Deep 48A Mower Deck

The flat-top shape of the deck stamping is optimal for keeping itself and the operator clean:

• There are few places to catch and hold material on top and underneath the deck.
  • Top of deck stays cleaner, reducing time and effort needed for cleaning and service
  • Underside of deck is self-cleaning to maintain optimum performance without buildup of material to interfere with the flow of air and clippings
  • Less need to clean and remove buildup of material from underside deck
• The depth of the Accel Deep mower deck minimizes the amount of material that escapes from the front of the deck:
  • Limited amount of material to drift onto the operator and mower deck
  • Even for material discharged out the chute, less recutting results in larger pieces that are less likely to end up on the operator
  • Mulching prevents the discharge of material completely and MulchControl makes mulching a practical solution for most mowing situations.

Cleaning a mower deck, both top and bottom, is one of the most frequent maintenance activities:

• The flat-top design reduces places for material to build up and makes material that does collect easy to remove.

7-bu (247-L) Power Flow rear bagger

Optional rear bagger

Power Flow blower

An optional 7-bu (247-L) rear bagger material collection system (MCS) is available. It provides an efficient means of collecting grass clippings and leaves:

• The Power Flow blower and chute are easy to install. The Power Flow blower swings out for easy cleanout and cleanup.
• The hopper design provides modern styling, great bagging performance, cleaner operation, and easy-to-empty bags:
  
  • 7-bu (247-L) capacity
  • Easy-to-attach Power Flow blower (ordered separately)
  • Easy-to-attach chute (ordered separately)
  • Air exhaust duct
  • Convenient spring-latch
  • Airflow fill indicator
  • Quik-Tatch mounting
  • Sealed hopper top
  • Loose-knit bags available

Larger 14-bu (493-L) and 19-bu (670-L) MCS are available, in addition to the 7-bu (247-L) MCS, for specific X300 and X500 Series Tractor models.

Mower wash port

Mower wash port with hose connector

A wash port is provided to make cleaning the underside of the mower deck easy.

• Hose connector is included with the mower deck.

Superior durability is designed in

Spindle pocket with flip-up cover

Easy-to-adjust mower wheel and mower side reinforcement

The 48A Mower Deck has strong spindle pockets, to keep the blades aligned, even after years of tough service:

• Stamped from strong 10-gauge, 0.135-in. (3.4-mm) steel
• Ribs in the deck shell add strength where it is needed
• The 48A has a 23 percent heavier overall weight than the Edge™ Xtra 48-in. (122-cm) Mower Deck used on previous machines.

Mower wheels are heavy duty:

• Provides greater strength and durability for longer, trouble-free life.
• Setting wheels to the correct height for the cutting height quick and easy.

Low-tension belt-drive design reduces the side load on engine lower bearings and mower deck bearings for longer life.

The 48A Mower Deck features a 5/8-in. (16-mm) diameter solid-steel rod side bumper that provides extra strength and protection.

Dual-stage E-coat and powder-paint coatings provide extra protection from rust.

Versatility – easy to change between side discharge, mulch, and bagging modes

The 48A Mower Deck is designed for maximum versatility, providing the greatest ease in changing from one mower discharge mode to another:

• With an optional MulchControl system installed (along with the special mulching blades), changing from side discharging to mulching or vice versa is done with the simple flip of a lever or push of an electric switch.
• The Power Flow rear bagger can be used with MulchControl by simply using the MulchControl lever or electric one-touch switch to move the mulch baffle to the side-discharge position.

Mower blades

Side-discharge blades can be used with the Power Flow system when bagging.

Mulching blades are included with the optional MulchControl system. They can be used for mulching, side discharging, and bagging.

Mower blade use chart

An exclusive 4-year or 300-hour (whichever comes first), single-source, bumper-to-bumper warranty* is standard for all John Deere X300 Series Tractors.

• The warranty is hassle free, with one company handling all the paperwork.
• Premium features of X300 Series Tractors allow for this longer warranty period, with more coverage than comparable tractors.

*Term limited to years or hours used, whichever comes first, and varies by model. See Agriculture and Turf equipment Warranty Statement.at JohnDeere.com.au for details.

Four-wheel steering versus two-wheel steering

Four-wheel steer maneuverability

NOTE: In the schematic above, the solid line refers to a four-wheel steer tractor, and the hashed line refers to a two-wheel steer tractor.

Four-wheel steering provides very significant maneuverability and trimming advantages over that of two-wheel-steering-equipped tractors.

For example, with the X384 Select Series™ Tractor equipped with a 122-cm (48-in.) Accel Deep™ Mower (the following numbers correspond to the schematic above):

1. Uncut circle radius is reduced from 53 cm (21 in.) for a two-wheel steer X380 to only 23 cm (9 in.) for an X384, eliminating or greatly reducing the need to back up when trimming around trees, shrubs, etc. 
2. Interference from the mower and tractor wheels is eliminated because they are several inches away from the object being trimmed around.
3. Outside turning circle is reduced, reducing the time spent turning and increasing mowing efficiency.

Also, trimming inside curves around flower beds or other landscaping can be done more completely with a four-wheel steer tractor.

Designed for tight turns

The four-wheel steering system is designed for tight turns, leading to greater mowing efficiency:

• Caster, camber, and kingpin angles are optimized to reduce effort, especially when going from straight ahead into a turn.
• Steering geometry has been designed with the use of 3D modeling, so all four tires are working together.
• Sealed ball bearings are used on the torque shaft and the rear spindles to reduce friction.
• Small scrub radius, less than 2.5 cm (1 in.) in the rear, reduces scuffing and bump-steer.

Designed for easy steering

Four-wheel steer illustration from rear

Four-wheel steer illustration from front

Sealed ball bearings are used at critical all-wheel-steer joints for reduced friction, longer life, and less maintenance.

Easy steering is important for an enjoyable mowing experience:

• Larger, 35.6-cm (14-in.) diameter steering wheel gives improved leverage for easier turns.
• Larger sector gear gives improved (higher) steering ratio.
  • A higher ratio equals lower steering effort.
• Dual drag links help equalize steering loads and greatly reduce steering error.
• Ball-joints on both ends of the steering tie rods reduce wear to maintain accurate steering. 
• Long steering arms improve the mechanical advantage of the steering system through the full range of motion.
• The steering shaft rotates on a sealed ball bearing at its lower end, near the pinion gear, to reduce steering effort and provide a smooth feel for the life of the tractor.
• The sector gear pivots on a shaft rather than a bushing to ensure proper gear mesh and eliminate binding.
• Pivoting of the upper and lower ends of the sector gear shaft on sealed ball bearings reduces steering effort and provides a smooth feel for the life of the tractor.
• Greaseable front steering spindles reduce friction and improve wear over time.