John Deere Z950M ZTrak™ Zero-Turn Mower

Z950M and Z950R engine

The Z950M and Z950R are powered by an air-cooled, vertical shaft engine:

• 27-hp (20.1-kW) gas engine

Engine features include:

• 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 with quick-release latch
• 15-amp alternator
• Fuel pump
• Complies with strict Environmental Protection Agency (EPA) and California Air Resources Board (CARB) 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.

Mulch On Demand mower deck

Mower deck with chute closed

The Mulch On Demand mower deck delivers unprecedented levels of productivity and versatility to commercial mower operation. With the ability to switch between side discharge and mulching operation with the flip of a lever as the operator mows, keeping most clippings out of landscaping features and where they are wanted is extremely easy.

Mulch On Demand open

Mulch On Demand closed (latch standard on material collection system [MCS] equipped models only)

Lever position open (latch standard on MCS-equipped models only)

Lever position closed

Key features of the 7-Iron™ PRO Mulch On Demand mower deck:

• Deck can be converted from a wide-open side discharge mode to a fully chambered mulching mode with a single move of a lever.
  • NOTE: Mulch On Demand decks are a balance between a side discharge deck and a side discharge deck with a mulching kit.
• 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. Anti-skid step on the deck provides for easy machine mounting.
• Mulch On Demand decks are superior to aftermarket chute blockers due to the movable baffles.
• Higher blade tip speed than many competitors – 18,500 fpm (5,639 m/min) for more blade cuts per inch mowed.
• 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.
• Deep-deck design of 5.5 in. (14 cm) delivers excellent airflow so material can be processed quickly and efficiently.
• Wider and higher discharge opening provides even clipping dispersal for an excellent finished appearance in all conditions.
• 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 reinforced with a square bar for durability. The front baffle has been redesigned to better manage airflow and control clippings.
• Dual-captured anti-scalp wheels provide deck flotation over even the toughest terrain.
• Three greasable spindle zerks accessible from the top.
• 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.
• Blade overlap is 1.6 in. (40 mm), nearly 0.79 in. (20 mm) greater than previous decks, to reduce striping between blades.
• Quick-change, cutting-height adjustment.

7-Iron PRO Mulch On Demand mower deck

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 three seating options available for the M Series, all of which are factory installed:

1. Deluxe comfort seat with armrests
2. Deluxe comfort seat with armrests and isolation
3. 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

Deluxe comfort seat with armrests

The deluxe comfort seat with armrests is standard on all E and M Series models:

• Rubber springs are provided to increase ride comfort.
• A convenient seat latch makes it easy to lift the seat.
• The seat is factory installed.

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

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.

Brake & Go starting system

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