John Deere Z320R ZTrak™ Mower, 42-in. Deck

Premium engine is powerful, reliable, and durable

A 21.5-horsepower (16.0-kw) V-Twin engine with 44.3 cubic inch (726cc) displacement provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions.

• V-Twin cylinder design for greater torque, lower vibration, and improved sound quality.
• Full-pressure lubrication and cast iron sleeves to extend engine life.
• Rear engine guard protects the engine from damage.

Simplify maintenance with oil drain tube and easy-to-access air, fuel, and oil filters. Oil drain tube can be opened without tools and used to direct the used oil into a catch pan.

Get an even cut with the 42-inch (107-cm) Accel Deep™ (42A) Mower Deck

The 42-inch (107-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.

• 4.97-inch (12.6-cm) depth throughout the entire deck shell for optimum mowing, mulching, and bagging performance.
• Optional 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-inch (0.64-mm) cut height increments allow the mower to be set at the desired cut height.
• Compatible with efficient 6.5-bushel (230-L) two-bag cut-and-throw material collection system.

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.

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.
• Cut-and-throw chute has a large, optimized inlet which aids in collecting material by using airflow from the large deck opening.

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 of the 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 flow of material discharged out the chute and 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.

The MulchControl™ system for the 42A Mower Deck is an optional field-installed attachment and makes mulching practical for many mowing situations because it not only does an excellent job of mulching, but it also allows the mower to be easily converted for times when it is more desirable to side-discharge or collect the lawn material. Advantages of mulching grass clippings include:

• A beautiful looking lawn.
• Grass clippings are not blown onto the operator, driveways, or flower beds.
• Less fertilizer use.
• Elimination of the effort needed to dispose of clippings.

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

• A hose connector is included with the mower deck.

The 42A Mower Deck has strong spindle pockets to keep the blades aligned, even after years of tough service.

• Ribs in the deck shell add strength where it is needed.
• The 42A has a 16% heavier overall weight than the Edge™ Xtra 42-inch (107-cm) Mower Deck that it replaces.

Mower wheels are double-captured.

• Provides greater strength and durability for longer, trouble-free life.
• Single bolt adjustment makes setting wheels to the correct height for the cutting height quick and easy.

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

Rolled outer edges of the deck provide extra strength and protection.

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

The 42A Mower Deck is designed for maximum versatility, providing the greatest ease in changing from one mower discharge mode to another.

• With the optional MulchControl™ system installed (along with the special mulching blades), changing from side-discharge to mulching or vice versa is done with the simple flip of a lever.
• The cut-and-throw rear bagger can be used with MulchControl™ installed by removing the rear MulchControl™ baffle before installing the bagger chute. The baffle is held in place with two carriage bolts. To return to mulching, the chute needs to be removed and the baffle replaced.
• The MulchControl™ handle is located on top of the mower deck and is used to open and close the discharge baffle.
  • The operator is required to get off the machine in order to engage or disengage mulch mode.
• Changing from mulching to side-discharge or vice versa takes only a few seconds.
• MulchControl™ is well-suited to the following mowing situations:
  • Usually mulch, but side-discharge when grass gets too long.
  • Usually side-discharge, but would like to be able to close the chute to control clippings.
  • Always mulch a main lawn, but often side-discharge secondary lawns.
  • Bag clippings, but want to go farther before emptying bags.
• While in the side-discharge mode, MulchControl™ still mulches about one-third of the material. Therefore, the side-discharge mode is essentially a partial-mulch mode. This can be an advantage when side-discharging or bagging, as it helps to reduce the amount of material being discharged. Other times, this could work as a disadvantage.
  • When cutting strong southern grasses, such as Zoysia and Bermuda.
  • When cutting in wet, high-growth conditions, such as those found in the Pacific Northwest United States.
  • When optimum bagging and lawn cleanup is desired.
• MulchControl™ is an innovative, simple design that is easy to use and maintain.
  • The MulchControl™ attachment includes baffles to control the flow of material under the deck.
  • When the MulchControl™ baffle is open, most of the material passes through the discharge opening.
  • When the MulchControl™ baffle is closed, the material stays within the deck and gets chopped into mulch and deposited in the turf.

An optional 6.5-bushel (230-L) cut-and-throw rear bagger material collection system (MCS) is available for use with the 42-inch (107-cm) Accel Deep™ Mower Deck. It provides an efficient means of collecting grass clippings and leaves. The hopper design provides modern styling, great bagging performance, cleaner operation, and easy-to-empty bags.

• 6.5-bushel (230-L) capacity.
• Easy-to-attach lower chute.
• Air exhaust duct.
• Convenient spring latch.
• Airflow fill indicator.
• Quik-Tatch™ mounting.
• Sealed hopper top.
• Loose-knit bags available.

High-lift bagging blades are included with the chute. They provide optimum performance when bagging in difficult conditions, such as when the grass is moist, dense, or long. High-lift bagging blades also work well when side-discharging material.

Mulching blades are included with the MulchControl™ attachment. They can be used for mulching, side-discharging, and bagging in most conditions.