Information
2018 John Deere X384
Lawn Tractor with 48-inch Deck- Exclusive 4-wheel steering for excellent maneuverability
- 48-in. Accel Deep™ mower deck
- Powered by 22 hp (16.4 kW) iTorque™ Power System
- 4 year/300 hour bumper-to-bumper warranty
Features may include:
Engine is smooth running and reliable V-twin air-cooled designThe 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 22-hp (16.4-kW) V-twin engine provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions.
- Large 726-cc displacement
- V-twin air-cooled design that provides smooth, quiet power
Quality features include:
- Cast-iron cylinder liners
- Full-pressure lubrication
Dual-stage air cleaner V-twin design:
- Excellent power and performance
FLYWHEEL ALTERNATOR
A flywheel alternator provides plenty of capacity to quickly recharge the battery and power electrical equipment, such as lights or a sprayer:
- Regulated to keep the battery at full charge without risk of overcharging
Four-wheel steer gives superior maneuverability and trimming abilityNOTE: 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 48-in. (122-cm) Accel Deep™ Mower (the following numbers correspond to the schematic above):
- Uncut circle radius is reduced from 21 in. (53 cm) for a two-wheel steer X380 to only 9 in. (23 cm), eliminating or greatly reducing the need to back up when trimming around trees, shrubs, etc.
- Interference from the mower and tractor wheels is eliminated because they are several inches away from the object being trimmed around.
- 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 4-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 3-D 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 1 in. (2.5 cm) in the rear, reduces scuffing and bump-steer.
DESIGNED FOR EASY STEERING
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, 14-in. (35.6-cm) diameter steering wheel gives improved leverage for easier turns.
- Larger sector gear gives improved (higher) steering ratio.
- A higher ratio equals lower steering effort.