John Deere Z955R EFI ZTrak™ Zero-Turn Mower

Electronic fuel injection (EFI) engine

Get power, performance, and efficiency from the air-cooled, vertical shaft, EFI gas engine with 29 hp (21.6 kW).

Engine features include:

• Electronic, closed-loop electronic fuel injection system with oxygen sensor
• Up to 25 percent better fuel economy than typical carbureted engines of similar power
• Cleaner emissions
• Easier starting No choke control or cable
• Better recovery under load
• Automatic optimization for altitude (air pressure), air temperature, engine temperature, and fuel blends up to E10
• Onboard diagnostics (blink codes) and plug-in diagnostics (Service ADVISOR™ system) for EFI system trouble codes
• Overhead valve design 
  • More horsepower and torque per cubic inch of displacement 
  • Better fuel efficiency 
• Full-pressure lubrication with full-flow filter 
  • Reduces engine wear by ensuring proper lubrication, even when operating on hillsides or uneven terrain 
  • Oil filter helps keep oil clean for increased engine life 
  • V-twin big block design 
• Vertical shaft 
• Easy-access, dual-element air filter 
• 20-amp alternator 
• Electric fuel pump 
• Complies with strict U.S. Environmental Protection Agency (EPA) emission standards without loss of horsepower or torque 
• Aluminum block engines 
  • Effectively dissipate heat 
  • Lightweight and strong construction 
  • Extend engine life due to elimination of debilitating engine temperatures 
  • Air-cooled engine design

Air cleaner filters out dust that can damage an engine

Engine air cleaner

Air cleaner cover removed

ZTrak™ Z900 Mowers are equipped with a dual-element, canister-style air filter, easily accessible from the rear of the machine without tools.

• The filtration system pulls clean air from above the engine, in turn filtering out the dust that can damage an engine over time.
• Filters are extremely easy to change when required.
• Pre-cleaner provides more protection against contamination in dusty and dirty applications.

Mow all day on a single tank of fuel with efficient and easy-to-fill fuel tank

Fuel tank and filler neck

Fuel filler neck

The ZTrak™ Z900 Mowers are equipped with one single-fill, top-draw fuel tank:

• 11.5-U.S. gal. (43.5-L) capacity enables operators to mow all day without refueling.
• The fuel gauge makes it quick and easy to see how much fuel is in the tank.
• Top draw provides added safety.
• A large fuel-filler neck is angled to make it easy for an operator to complete the fueling process.

Under normal conditions, load, and operation, fuel consumption for the Z900 ZTrak Mowers is 1.5 U.S. gph (5.7 L/hr) to 2.2 U.S. gph (8.3 L/hr), depending on the horsepower and conditions.

72-in. (183-cm) 7-Iron PRO deck shown

The ZTrak™ M and R Series Mowers are equipped with either a side-discharge or Mulch On Demand™ 7-Iron PRO deck.

7-Iron PRO mower decks have demonstrated quality, performance, and durability. They deliver a high-quality cut in diverse conditions.

Key features of the 7-Iron PRO mower deck:

• Deck is stamped from 7-gauge, 0.179-in. (4.6-mm) steel to minimize the number of welds and provide a smooth underside with fewer sharp corners for reduced material buildup.
• Significantly fewer welds on the deck shell to wear or break - it is stamped from a single sheet of steel rather than multiple fabrications. An anti-skid step on the deck provides easy machine mounting.
• Extra reliability and long life with cast-iron blade spindle housings.
• Higher blade tip speed than many competitors - 18,500 fpm (5,639 m/min) for more blade cuts per inch mowed.
• A deep-deck design of 5.5 in. (14 cm) delivers excellent airflow so material can be processed quickly and efficiently.
• The wider and higher discharge opening provides even clipping dispersal for an excellent finished appearance in all conditions.
• Quick-release belt covers do not require tools or the removal of a ring clip; just lift one corner of the cover and rotate it slightly to remove.
  • A hole in the deck tab is provided for use of an optional ring clip for extra security, if desired.
  • This makes it quick and easy for you to clean out trash that may collect around the spindle sheave.

Mower rectangular leading-edge reinforcement

Dual-captured anti-scalp wheel

• Deck has rectangular leading deck edge reinforcement and the rounded corners of the stamped deck help distribute impact stress to reduce the potential of damage when the mower contacts trees, rocks, curbs, and other fixed obstacles.
• Dual-captured front and rear anti-scalp wheels provide deck flotation over even the toughest terrain.
• Three 1-in. (2.5-cm), cold-forged spindles are heat-treated for strength without bulk and are supported by ball bearings, providing reliability and performance; spindle housings are ribbed cast iron providing both excellent strength and heat dissipation.
• The front edge is raised above the blade plane to allow even cutting of tall grass and is reinforced with a square bar for durability. The front baffle has been redesigned to better manage airflow and control clippings.
• Three spindle grease fittings are accessible from the top.
• Blade overlap is 1.6 in. (40.6 mm), nearly 0.79 in. (20 mm) greater than previous decks, to reduce striping between blades.
• Quick-change, cutting-height adjustment.

7-Iron PRO mower deck

Mower deck step shown on 72-in. (183-cm) mower

The deck step safely aids the operator's entrance and egress from machine.

60-in. (152-cm) Rear-Discharge Mower Deck

72-in. (183-cm) Rear-Discharge Mower Deck

For professional landscapers and government municipalities requiring rear discharge placement of grass and debris, John Deere Fastback PRO rear-discharge mower decks deliver a commercial zero-turn mowing solution for both gas and diesel machines. Advantages of a rear-discharge mower include:

• Less chance of damage from objects being thrown from the mower deck
• Time savings with the ability to mow closely around fixed objects with either side of the deck
• A cleaner mowing experience by lessening the amount of debris that can blow onto the operator

A rear-discharge mower deck is ideally suited for:

• Schools
• Parks
• Playgrounds
• Traffic areas (city boulevards, roadsides, etc.)
• Areas with long, grassy spots that need to be cut, where you are not as concerned about wide dispersal of grass (park areas, roadsides, etc.)*

*NOTE: Operators maintaining turf outside of target areas are encouraged to evaluate rear-discharge dispersion through a cut quality demonstration to ensure satisfaction.

Compatibility

Commercial-quality deck design

A large volume of material can be thoroughly processed with the deep-deck design:

• Unique baffling system is designed to reduce clumping and windrowing often associated with rear-discharge mowers.
  • Efficiency is enhanced with baffles surrounding each blade to control material as it is moved to the rear.
  • Material exits the deck quickly as the baffles are lower at the rear.
  • Movement of material is controlled to minimize the likelihood that clippings are thrown onto unwanted areas.
• Less debris gets on the operator as material is directed to the rear and toward the ground.
  • Debris is kept low and directed into the turf by the flexible rear shield.

Level cut

Center deck rollers and left wheel

Right-rear deck wheel

The deck is suspended from and supported by the machine to provide a level cut. Mower deck wheels and rollers help smooth out the mowing job in uneven conditions and reduce the chance of scalping the lawn:

• Two wide front rollers at the center of the mower support the deck when necessary to prevent scalping.
• Wheels at all four corners protect the deck from scalping at the sides of the mower.
• Continued effectiveness results from wheels and rollers that are double captured for extra strength, which reduces the chance of damage.
• Height of rollers and wheels is adjustable to suit mowing conditions.
  • Higher setting (shown in images) are used when mowing at lower cut heights and for rougher conditions at all cut heights where you want to reduce the chance of the wheels hitting the ground.
  • Lower settings are used for higher cut heights and for helping to smooth out the mowing job.
• Mower cut height is adjustable from 1 to 5.5 in. (2.54 to 14 cm) in 0.25-in. (0.64-cm) increments from the machine operator’s station.

Heavy-duty components for long life

Strong, reinforced deck

Right trim-side wear guard

These rear-discharge decks are designed to stand up to heavy-duty commercial use:

• Superior strength and durability come from a 7-gauge, 0.179-in. (4.56-mm) steel deck.
• Experience extra strength and long life with a fabricated deck design that is formed, welded, and reinforced for extra protection from damage.
• The front of the deck is protected from damage by a 1.5-in. (3.8-cm) tall by 0.5-in. (1.3-cm) thick solid steel bar welded to the mower deck for additional strength.
• Both sides of the deck have bumpers that are made from compression molded ultra-high molecular weight (UHMW) polyethylene plastic.
  • The bumpers provide great abrasion resistance to protect the machine and the property.
  • Additional strength is provided by a 0.5-in. (1.3-cm) by 0.5-in. (1.3-cm) thick solid steel bar.

Cast-iron blade-spindle housing

Extra reliability and long life are provided by cast-iron blade spindle housings:

• Ductile cast-iron material provides superior impact strength.
• Gusseted design puts reinforcement where it is needed.
• Strength of cast iron protects against damage from blade impacts.
• Chance of deck-shell damage is minimized with the 8-in. (20.3-cm) diameter housing and six mounting bolts that distribute loads and impacts.
• Ability to be reliably rebuilt is provided by use of cast iron.

Ease of service

Quick-release belt cover

Cast-iron spindle housing assembly

Minimal service requirements increase uptime:

• Quick-release belt covers do not require tools or the removal of a ring clip; just lift one corner of the cover and rotate it slightly to remove.
  • A hole in the deck tab is provided for use of an optional ring clip for extra security, if desired.
  • This makes it quick and easy for you to clean out trash that may collect around the spindle sheave.
• There is only one belt to service.

Extra convenience

Serrated-tread step

Extra convenience and security are provided by a serrated surface that is welded to the top left corner of the deck, providing additional traction when entering and exiting the operator station.

There are two seating options available for the R Series, all of which are factory installed

1. Deluxe comfort seat with armrests and isolation
2. Fully adjustable suspension seat with armrests

ComfortGlide fore/aft suspension

ComfortGlide fore/aft suspension control lever

Each seat has the ComfortGlide fore/aft suspension system that gives superior ride comfort over uneven areas:

• Seat can travel up to 2 in. (50.8 mm) fore and aft to absorb bumps for a significant enhancement to ride comfort.
• Control lever provides the ability to easily lock out fore/aft suspension movement if desired.
• One lever has three functions:
  • Slide seat forward and back 3 in. (10.2 cm) to allow the operator the ability to choose the leg room needed
  • Activate ComfortGlide fore/aft seat suspension
  • Lock out ComfortGlide fore/aft seat suspension

Deluxe comfort seat with armrests and isolation

Deluxe comfort seat with armrests and isolation

Rubber isolation mount

The deluxe comfort seat with armrests and isolation is available on the E, M, and R Series:

• Rubber springs are provided to isolate the seat base and to increase ride comfort.
• A convenient seat latch makes it easy to lift the seat.
• Isolation mounting is a good feature to reduce vibration for operators who do not require the fully adjustable suspension seat option.
• Factory installed on Z900s ordered with the deluxe comfort seat with armrests and isolation option.

Fully adjustable suspension seat with armrests

Fully adjustable, mechanical suspension-seat

Suspension seat control

A fully adjustable suspension seat with armrests option is available on the M and R Series:

• Adjustable back angle is provided for individual operator comfort.
• Adjustable lumbar support helps to suit the needs of the operator.
• A suspension seat control dial gives easy adjustment for operator weight and ride comfort.
• A convenient seat latch provides ease of lifting the seat.
• On Z900s ordered with the fully adjustable suspension seat with armrests option, it is factory installed.

Designed for operator comfort

Operator station

Operator station

Two-lever hydrostatic control provides the following:

• The operator can select the ground speed and direction control simply by moving levers forward or reverse.
• Positive neutral lock position for levers provides added safety.
• Brake & Go operator-presence system returns levers to the neutral position when the brake pedal is actively engaged. 
• Starting the machines is as easy as starting a car. It no longer matters if the control levers are extended out or pulled in, as long as the parking brake is engaged. Just turn the key and go.
• Wide-bend, large-diameter steering levers swing out easily for entry and exit from the operator platform.

Foot pegs

Foot pegs available as standard on R-spec Z900’s

Foot pegs help in providing the operator with a comfortable foot placement:

• Location and angle of foot pegs can be adjusted for individual operator comfort.

Foot platform isolators

Foot platform isolators

Foot platform isolators provide the operator with added comfort:

• Vibration to the legs and feet is reduced.

Brake & Go starting system

Parking brake pedal (Z900R Series)

Parking brake lever (Z900 E and M Series)

The Brake & Go starting system is a John Deere exclusive. This feature makes the starting process on all ZTrak™ mowers easier, while also making it possible to remove two interlock switches from the machine.
 
The Brake & Go starting procedure helps a novice operator look and feel like a professional. To start the machine, the parking brake must be engaged. It does not matter whether the power take-off (PTO) switch is on or off, nor does it matter if the control levers are pulled in or in the out position.
 
As long as the parking brake is engaged, the machine will start. When the parking brake is applied, the control levers cannot be moved to the forward or reverse positions.

Adjustable levers

Adjustable levers

The motion control levers have two height positions and can also be adjusted forward or rearward within the slotted holes. The levers should be adjusted so the operator can achieve a full range of control operation comfortably.

Tracking adjustment

Tracking adjustment

The easy-to-turn (from-the-seat) tracking adjustment allows operators to keep their mowers straight and able to produce professional striping results.

Onboard storage and cup holder

Onboard storage

Cup holder

Several storage areas are provided on the ZTrak machines. A convenient cup holder is also available.

Right-hand control panel

Right-hand control panel

Right-hand control panel

The controls are grouped together on the right console, providing one central location for key switch, throttle, PTO engagement, height-of-cut, diagnostics, and hour meter:

• Rocker-type PTO switch
• Height-of-cut knob with transport lock
• Key switch
• Hour meter
• Throttle
• Separate choke control
  • Easy choke operation yields less fouling of plugs
  • No choke required for the electronic fuel injection (EFI) models

Easy-to-operate height-of-cut adjustment enables on-the-go changes

Mower deck height adjustment knob

An easy-to-use cutting-height lift system allows the operator to adjust the mower deck height with no tools and minimal effort. The easy-to-grip knob allows operators to dial in the desired height of cut (HOC).

Cutting height can be adjusted from approximately 1 in. to 5.5 in. (2.5 cm to 14 cm). Each increment on the knob adjusts the HOC approximately 0.25 in. (0.64 cm). The deck can also be raised and locked in a transport position to provide maximum ground clearance when moving the machine from one area to another.

The transport lock function allows the deck to be returned to the previous HOC after being in the transport position:

• Use the foot-lift pedal to lift the deck and engage the transport lock.
• Rotate the knob to adjust from 1 in. to 5.5 in. (2.5 cm to 14 cm) in 0.25-in. (0.64 cm) increments.

This design increases productivity by allowing operators to change the cutting height without having to leave the seat.

Comfort and convenience handles

The comfort and convenience package combines large, ergonomically angled control levers with specially padded grips to provide unmatched comfort and reduced fatigue:

• Keeps hands on the control sticks to minimize equipment damage and make them more comfortable over long operating days.

The control levers have built-in electronic controls to raise or lower the mower deck or disengage the mower blades.

Control buttons

The push button (A) on the left motion control lever raises the mower deck.

The push button (B) on the right-hand control lever shuts off the PTO.

Once the PTO has been shut off using the button, the PTO switch must be pushed down and pulled up again to engage the PTO.

Z955M ZTrak™ Mower

Z955R ZTrak Mower

E and M Series 3-year, 1200-hour bumper-to-bumper warranty

An exclusive 2-year, unlimited hour/3-year, 1200-hour (whichever comes first) bumper-to-bumper warranty is standard for all John Deere E and M Series Mowers. The warranty is best in its class and places John Deere at the forefront of commercial mowing. It is also hassle free, with one company handling all of the paperwork.

NOTE: 36 months or 1200 hours, whichever comes first. For the first 24 months, there is no hour limitation.

R Series 3-year, 1500-hour bumper-to-bumper warranty

An exclusive 2-year, unlimited hour/3-year, 1500-hour (whichever comes first) bumper-to-bumper warranty is standard on all John Deere R Series mowers. The warranty is best in the industry and puts John Deere at the forefront of commercial mowing. It is also hassle free, with one company handling all of the paperwork.

NOTE: 36 months or 1500 hours, whichever comes first. For the first 24 months, there is no hour limitation.

Mower decks are safety certified

Z950M ZTrak Mower

Mowers decks are evaluated by the manufacturer (John Deere Turf Care) and conform to American National Standards Institute (ANSI) B71.4 2004 safety certification specifications for commercial turf care equipment.

Z955R EFI model shown with optional X® Tweel® Turf airless radial tire technology

The durability features of the frame are as follows:

• Heavy-duty, thick-gauge, steel channel mainframe for strength and durability
• Cast I-beam caster arms to handle the beating and pounding professional mowers receive
• Wide-open access for maintenance and cleaning

Two-piece rear bumper provides protection

Illustration of ZTrak™ mower rear bumper

A steel rear bumper provides protection for the machine. The bumper is made of two pieces, making it easy to remove and install when using a material collection system (MCS).

A rear hitch can be added to the steel bumper for towing purposes. ZTrak E, M, and R Series Mowers can tow up to 400 lb (181.4 kg).

Michelin, X, and Tweel are trademarks of Michelin North America, Inc.

Heavy-duty ground drive

The hydrostatic drive included with the R Series Mowers features two 13-cc (0.8-cu in.) unitized hydraulic pumps combined with commercial-grade, heavy-duty, 13-cc (0.8-cu in.) wheel motors into a single unit. The R Series drive units feature cross porting, where the hydraulic fluid from the side doing the least work is filtered and then fed into the input of the side doing the most work. This ensures that the coolest fluid is going into the side working the hardest in order to provide the best performance during extended hillside operation in the same direction.

One pump and one motor drive each wheel on the ZTrak™ R Series Mowers. This provides several benefits:

• Exceptional cooling in high load conditions
• Easy-to-check level and refill hydraulic oil
• Opens up access under the seat

Flat-free rear tire shown on ZTrak Mower

John Deere provides the commercial mower industry with the Michelin X Tweel Turf technology for Commercial ZTrak Mowers:

• 24x12N12 as an ordering option code for ZTrak Gas Mowers with 54 in., 60 in., and 72 in. (137-cm, 152-cm, and 183-cm) Mower Decks
• 24x12N12 is also available as base code equipment for ZTrak Gas Mowers with 54 in., 60 in., and 72 in. (137-cm, 152-cm, and 183-cm) Mower Decks (ordering information available at Configurator on the Tweel model page)
• 24x12N12 as an ordering option code for ZTrak Z994R Diesel with 54 in., 60 in., and 72 in. (137-cm, 152-cm, and 183 cm) Mower Decks
• 26x12N12 as an ordering option code for Z997R Diesel with 60 in. and 72 in. (152-cm and 183-cm) Mower Decks

Michelin is a world leader in tire manufacturing and technology. This airless radial tire solution is an industry first for John Deere, which provides an additional advantage to John Deere customers.

Advantages of the Michelin X Tweel Turf include:

• Mowing performance is improved.
  • Rutting is reduced because the Michelin X Tweel Turf has more support across the surface for improved flotation and better ground contact.
  • Unique energy transfer within the poly-resin spokes reduces the bounce associated with pneumatic tires.
  • Excellent curb climbing is possible due to the Michelin X Tweel Turf construction and flexibility.
  • More consistent cut quality is achieved because inconsistent tire pressure is eliminated.
• Uptime is improved.
  • The exclusive technology eliminates downtime and associated cost due to flat or damaged tires.
  • Punctures and sidewall damage no longer result in downtime.
• Cost of operation is reduced.
  • Cost of repairs and maintenance is reduced. One single unit replaces the current tire, wheel, and valve assembly. There is no need for complex tire-mounting equipment.
  • No need to spend time checking and optimizing tire pressure.
  • The need to purchase and stock plug kits and spare tires is eliminated, particularly for professional landscape contractors and government agencies who normally stock them.
  • The tire tread will last up to three times longer than current pneumatic tires because automotive-grade rubber is used for the tread.

Michelin X Tweel Turf

Michelin X Tweel Turf

Heavy-duty construction provides the ultimate in performance and reliable operation:

• High-strength poly-resin spokes carry the load.
• Four-hole, heavy-duty steel hub for durability.
• Deep, open-tread design provides excellent cleaning and traction.
• Zero degree, high-tensile proprietary carcass provides great lateral stiffness while resisting damage from impact and penetration.

NOTE: In some cases, different size Tweel tires are required depending on the mower deck size.

Tires deliver exceptional traction and maneuverability

Drive tire

Front caster tire

The ZTrak R Series Mowers with 48-in. (122-cm) mower decks come with 24x9.5-12 4 PR drive tires. R Series Mowers with 54-in. (133-cm), 60-in. (152-cm) and 72-in. (183-cm) decks come with 24x12-12 4 PR drive tires. All R Series Mowers are equipped with 15x6-6 front flat-free tires for the following:

• Excellent traction, flotation, and curb climbing
• Low center of gravity to increase hillside mowing capability
• Caster wheels and caster wheel towers with sealed bearings for long life and easy steering
• Offset front caster wheels to help improve the inside corner-trim performance and reduce between-blade striping

Michelin, X, and Tweel are trademarks of Compagnie Générale des Etablissements Michelin SCA.

Z955R EFI left front view

The design of the Z900 Series makes many service components reachable and easily accessible from the ground.

• Large, open engine compartment at the rear of the machine provides convenient servicing and ensures the engine heat is directed away from the operator.

Flip-up foot panel

Flip-up seat

Onboard maintenance chart

Maintenance chart

All ZTrak™ Mowers come with an onboard maintenance chart that is conveniently located inside the right-hand console. The service interval chart gives necessary service intervals.

Diagnostics

Hour meter (M Series pictured)

Diagnostic chart

The hour meter shows the number of hours the machine is run when the key switch is in the on position. It only counts the hours the engine is actually running. Machine diagnostics are the first step of a monitoring system to help operators quickly diagnose common downtime issues. A trouble code light is included on the hour meter.

Use of the hour meter and service interval chart helps determine when the machine will need service.

Cast-iron mower spindle

Cast-iron mower spindle

Extra reliability and long life with cast-iron blade spindle housings:

• Superior impact strength with ductile cast-iron material
• Gusseted design puts reinforcement where it is needed
• Strength of cast iron protects against damage from blade impacts
• Easy access grease fittings are mounted at the top of the spindle shafts for convenience
• Grease pressure-relief valve minimizes seal damage from overfilling with grease and keeps debris from entering housing
• Chance of deck shell damage is minimized with the 8-in. (20.3-cm) diameter housing and six mounting bolts that distribute loads and impacts
• Ability to be reliably rebuilt is provided by use of cast iron

Z915E with 60-in. (152-cm) Mower Deck

The spacious operator station has been designed for comfort, visibility, and ease of use:

• Getting on and off is easy with the flat operator platform.
• Convenient-to-use controls located close to the operator are color coded and designed for easy identification and operation.

The ROPS and seat belt work in conjunction to provide a protective zone around the operator:

• It reduces the operator’s risk of being crushed under the vehicle should it overturn.
• When used with the seatbelt, the ROPS can reduce the severity of injury in the event of a rollover.
  • Use of the seat belt is recommended when operating with ROPS in the upright position.

ROPS in upright position

ROPS in intermediate position

ROPS in down position

Foldable ROPS and retractable seat belt are standard equipment:

• Position adjustment pins provide a good grip and make changing the angle of the ROPS easier.
• The ROPS can be pinned in an intermediate position to accommodate machines equipped with a material collection system.
• Under normal operation, the ROPS should be in the upright position.
• See Operator’s Manual for more information on ROPS.
• Door height of most garages will accommodate the machine with ROPS in the raised position.
  • Easy-fold ROPS improves the ability to store the ZTrak™ mower in structures with a lower door opening.