Z998R Diesel

The Z998R Diesel ZTrak™ Mower is powered by a turbo-charged, 3-cylinder, liquid-cooled diesel engine with gross SAE J1995 43.4 hp (32.4 kW) that meets U.S. Environmental Protection Agency (EPA) Final Tier 4 emission standards. The engine achieves Final Tier 4 compliance by using a diesel oxidation catalyst with diesel particulate filter (DOC/DPF) system.

The three-cylinder diesel engine features low noise levels, superior fuel economy, and a high torque reserve that provides plenty of power and performance.

Key features of the engine include:

• Economical, cast-in-block cylinder design gives good cooling and long life.
• Liquid-cooled design provides more consistent operating temperatures than air-cooled.
• Direct fuel injection is provided.
  • Injects fuel directly on top of pistons for more efficient combustion
  • Develops more horsepower per gallon of fuel
  • Improves starting
• Aluminum-alloy pistons with built-in steel struts are lightweight to reduce connection rod bearing loads and provide good heat-transfer characteristics.
  • Design permits tighter tolerances and neutralizes expansion of the piston, thereby reducing blow-by fuel and noise from piston slap
  • Higher top rings on the piston and a thinner head gasket greatly reduce the volume of unburned waste and increase combustion efficiency
• Timing gears and injector drive gears utilize a helical profile to help lower engine noise.
  • Gear teeth have a ''roll-off'' profile, giving almost no clash, noise, or backlash
• Fuel filter with replaceable element is provided.
• Quick starts in temperatures down to 0°F (-18°C).
• Auto-bleed fuel system gives extra convenience.
  • No need to prime the system if the unit runs out of fuel; the system will self-prime the injection pump, lines, and injectors, providing fast fuel recovery
• Key start and shutoff
• See-through coolant recovery tank permits operator to check coolant level without removing radiator cap.
• Sealed radiator compartment keeps trash and debris on the outside of hood.
• Dual-element, dry-type air cleaner with safety element and air-service indicator is provided.
  • Dual-element design for added engine protection
  • Easy to service
  • Completely sealed for effective cleaning and 90 to 95 percent of dirt ejected before it reaches the paper element
  • Secondary safety element for additional filtering
  • Air-restriction indicator to let operator know when the filter needs servicing
• Full-pressure lubrication with full-flow filter lengthens engine life.
  • Engine wear reduced by ensuring proper lubrication, even when operating on hillsides or uneven terrain
  • Oil filter helps keep oil clean for increased engine life
• Automotive-type alternator (150 amp) provides plenty of charge to the battery.
• Rear-mounted, covered radiator and fan keeps noise away from the operator and is easy to service.
• Isolated engine mounting reduces engine vibration at operator's station for more comfortable operation.

Air cleaner filters out dust to extend engine life

The Z998R ZTrak Mower is equipped with a dual-element, canister-style air filter that is easily accessible without tools from the rear of the machine.

• Filtration system pulls clean air from above the engine, and filters out remaining dust that can damage an engine over time.
• Filters are easy to change when required.
• Pre-cleaner provides extra protection against contamination in dusty and dirty applications.

12-U.S. gal. (45.4-L) capacity fuel tank allows the operator to mow for a full day without refueling

The Z998R Diesel ZTrak Mower is equipped with a single fuel tank, providing the following:

• 12-U.S. gal. (45.4-L) capacity allows the operator to mow for a full day without refueling.
• A large filler neck makes for easier refueling.
• Top fuel draw provides added safety by reducing the chance fuel will leak out.

The Z998R Diesel ZTrak™ Mower leverages E-Cut electric-drive technology, which John Deere pioneered for golf mowers. The Z998R mower’s 61-in. (155-cm) center deck is shaft driven and its two 22-in. (56-cm) E-Cut Wing Mower Decks are driven by electric motors. The E-Cut Wing Mower Deck electric motors are powered by an engine-mounted 56-V 240-amp alternator.

In nine seconds, by pressing buttons on the steering levers, the operator can convert from a productivity-focused 100-in. (254-cm) cut width to 60-in. (152-cm) or 80-in. (203-cm) cutting widths as landscaping obstacles require. In addition to providing multiple mowing widths, electrically driven wing-mower decks overcome belt alignment limitations and reduce shielding, which simplifies cleaning.

E-Cut Wing Mower Deck electric motors are serviceable

The E-Cut Wing Mower Deck electric motors are designed to last, even in difficult mowing environments. The motor’s anodized housing is durable and has even been submersion tested to ensure the motors are sealed from the elements.

John Deere’s extensive testing processes led to the development of serviceable motors. In the event of a severe blade impact, the lower-cost and serviceable spindle (A) and lower motor housing (B) are designed to fail and protect the expensive components of the drive motor.

FastBack PRO Rear-Discharge Mower Deck Advantages

Advantages of a rear-discharge mower deck 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.

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

The center mower 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.

The wing decks are supported by three wheels to follow uneven contours. Electric drives overcome belt alignment limitations which allow the wing decks to articulate 20 degrees up or down.

• Outboard front caster wheel (A)
• Inboard front wheel (B)
• Outboard rear wheel (C)

All mower deck wheels and rollers are double captured for extra strength and adjustable to suit mowing conditions.

Heavy-duty components for long life

The Z998R mower’s rear-discharge decks are designed to stand up to heavy-duty commercial use:

• Superior strength and durability come from 7-gauge, 0.179-in. (4.6-mm) steel.
• 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.

Durability is designed into the center deck mower deck drive system:

• Reliably powered by a universal joint shaft drive from the vehicle transmission to a heavy-duty right-angle, cast-iron gearbox
• Dependable v-belt drive system

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.
• 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 the use of cast iron.

Serrated-tread step

A serrated-tread step is provided on the front of a Z998R mower, making it easy to enter and exit the operator station.

The Z997R and Z998R Diesel ZTrak™ Mowers allow operators to be more productive by locating frequently used controls at the operator’s fingertips.

Two-lever drive-by-wire hydrostatic drive control

ZTrak Mowers include large, ergonomically angled control levers with specially padded grips and built-in electronic controls.

• Operators select ground speed and direction simply by moving levers forward or in reverse.
• A positive neutral lock position for the levers provides added safety.
• Wide-bend steering levers swing out easily for entry and exit from the operator platform.

To reduce operator fatigue and tailor control sensitivity, the control levers operate the hydrostatic transmissions electrically. These drive-by-wire controls reduce effort needed to operate the handles and enable features like LoadMatch™, which can slow the mower under heavy cutting load, providing consistent cut quality.

Comfort and convenience handles

Standard comfort and convenience handles are built into the steering levers.

Z997R - The Z997R has three steering-lever buttons. The left steering lever has a button (A) to raise the mower deck. The lift button can be pressed momentarily to raise the deck over an obstacle. The left and right steering levers each have a yellow PTO button (B). Press both buttons at the same time to engage the PTO. Press either button to shut off the PTO.

Z998R - The Z998R has five steering-lever buttons. The Z998R includes the same buttons as the Z997R model, plus there is a button (C) on each lever to raise or lower that side’s E-Cut Wing Mower Deck. Similar to a garage door, each deck lifts or lowers when its button is pressed. On the Z998R model, when the deck raise button (A) is pressed all three decks are raised to clear an obstacle.

The blades on the wing decks automatically stop when the decks are raised. If the PTO is engaged, the wing decks automatically start when the wing mower decks are lowered.

Automatic park brake system is built into steering levers

The integrated park brake is automatically applied when steering levers are stowed outward and disengaged when the steering control levers are placed into the operating position.

Switch controls

The key switch and switches for auto throttle (A), center deck control (B), and transport (C) are located near the touchscreen display.

Auto throttle - When the PTO is off, the auto-throttle switch is used to adjust engine speed. Low speed is used when maneuvering the mower in tight locations like loading on a trailer. High speed is used for transport. When the PTO is engaged, the engine runs at full throttle, and the auto-throttle switch is used to limit maximum mowing speed. The low-speed position improves precision while trimming and high speed enables full mowing speed in open areas.

Center deck control - Used to shut off the center mower deck with the PTO engaged; useful when the operator wants to mow with one or both wing decks without the center deck creating noise and stirring dust.

Transport switch - Raises all mower decks to transport position or lowers them to mow at full width.

The Z997R and Z998R Diesel ZTrak™ Mowers are equipped with an advanced 4.3-in. (10.9-cm) full-color LED touchscreen, which provides unprecedented control and information.

Similar to mobile device screens, the touchscreen contains multi-colored pixels. Unlike segment-based displays, a touchscreen can be extensively customized, which enables software-defined menus and supports multiple languages including English, Spanish, German, French, and Italian. The touchscreen is bright so it can be read in sunlight and backlit for low-light conditions.

The touchscreen is designed and tested to withstand the elements. It is IP66 rated, indicating it is dust-tight and protected from water.

The touchscreen provides the operator with:

• Mower deck status
• Stop, service, park brake, power-take-off, seat switch, and diesel particulate filter regeneration indicators
• Fuel level
• Hours
• Connectivity signal strength

The touchscreen can be used to adjust machine settings:

• Mow mode - Choose between eco, cut quality, and productivity modes
• LoadMatch™ - Slows the mower under heavy cutting load, providing consistent cut quality
• Maximum ground speed

The touchscreen can also be used for diagnostics.

Customizable machine settings for each member of the team

The Z997R and Z998R Mowers are factory-configured with a single full-access user profile. Fleet operators may choose to tailor menu access to the unique needs of owners, crew supervisors, and operators. Each user is assigned a PIN that may be restricted from machine settings and diagnostic menus.

A mower can have up to three owner profiles. Owner profiles have access to the following settings:

• Display settings
• Mow mode
• Speed limit
• LoadMatch
• Service and diagnostics
• Factory reset
• Operator permissions

A mower can have up to 100 unique operator profiles, each with their own PIN that remembers their unique language and machine settings. Each operator-profile setting has access to the display settings menu. Based on the owner’s permissions, each operator may be given access to, or restricted from, accessing the remaining menus. For example, an owner may give crew supervisors and experienced operators access to more settings than less experienced operators.

The Z997R and Z998R Diesel ZTrak™ Mowers include a standard air-suspension seat, which provides maximum operator comfort across a wide range of operator traits.

Key features and adjustments:

• 24-in. (60.9-cm) seat back with body-contoured seat cushions.
• Weight and height adjustment allow for proper ride and suspension height.
• Damper adjustment that allows the operator to adjust the seat’s ride to their preference:
  • Softer settings increase seat travel to absorb large bumps.
  • Stiffer settings reduce vertical seat travel, reducing movement of the operator’s arms and legs.
• 5.9-in. (150-mm) of seat fore-aft slide adjustment helps account for a wide range of heights.
• 1.8-in. (46-mm) of fore-aft suspension travel softens and absorbs directional changes.
• Back-angle tilt adjustment reclines seat back up to 20 degrees to accommodate operators.
• Lumbar adjustment provides proper back support.
• Standard, adjustable armrests are made of a durable material that provides adequate support and surface area for the operator's arms.
• Cushions are ideal for those who seek proper back support. The highly resilient contoured foam construction allows for all-day mowing comfort.
• A raised seat ensures a commanding view to the front and side mower decks.
• A retractable seat belt that is convenient to use.

A-Armrest height
B-Lumbar (on rear of seat)
C-Fore-aft slide
D-Fore-aft suspension
E-Air-suspension weight and height
F-Damper
G-Back angle tilt

The Diesel ZTrak™ Mowers have an intuitive and ergonomically placed pin map height-of-cut system. The system provides 1- to 5.5-in. (3.8- to 12.7-cm) cutting heights in 0.25-in. (0.64-cm) increments.

Innovative wing-deck height-of-cut

On a Z998R ZTrak Mower, keeping the cut height of the wing decks matching the center deck is fast and clean, and does not involve relocating greasy spacers.

The front wing deck caster wheels use a turn-dial system (A). Simply remove the cap and magnetic locking key and turn the dial. The front caster shaft is engraved with height-of-cut markings that indicate the cut height.

The rear mower deck wheels use a spring-locking pin (B). Simply move the pin to adjust the height. The shaft is also engraved with height-of-cut markings.

The entire system is designed to be adjusted without tools in the field. In the shop, a ratchet or power driver can be used to speed adjustments.

Comfort and convenience handles put deck lift at the operator’s fingertips

The standard comfort and convenience handles include built-in electronic controls to raise or lower the mower deck.

The service points of Diesel ZTrak™ Mowers are easy to see and access:

• Open engine compartment allows full access to engine components and service points.
• Engine heat is kept away from the operator.
• Flip-up seat allows easy access to the hydraulic system.
• Flip-out floor panel allows easy access to deck spindles.

Hood latch and hood pivots

Hood has one central over-center type latch.

The hood pivots to make the hood easier to remove and install for ease of servicing the engine.

Easy to clean intake screen is in clean location

To reduce debris ingestion, the cooling-air intake and radiator of Diesel ZTrak Mowers are located in a clean location in front of the engine. Warm air exits the rear of the mower away from the operator. The radiator screen can be removed for cleaning and to provide access to the radiator, oil, and fuel coolers.

Mower deck drives are easy to access

Minimal mower deck drive maintenance requirements increase uptime:

• Flip-up foot panel provides access to the top of the center deck for cleaning and to grease the center spindle.
• 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.
• Convenient spindle greasing with fittings at the top of spindle shafts are accessible through a hole in the top of the spindle/belt covers.
• There is only one belt to service.

Onboard maintenance information

Diesel ZTrak Mowers come with a maintenance label that is conveniently located on the underside of the hood. The label is written on English and Spanish languages and includes daily service check points, approximate fluid capacities, and tire pressures.

Quick response (QR) codes link to owner information web pages

To speed access to owner information web pages, a QR code is printed onto a product identification number (PIN) label located under the right steering lever. The owner information web pages that include links to:

• Safety and how-to videos
• Operator’s manuals
• Parts catalogs
• Maintenance reminder sheets
• Attachments
• Warranty statements

Optional service jack kit and jack (Z997M and Z997R)

The front frame of the Z997M and Z997R Diesel ZTrak Mowers are pre-drilled to accept the optional jack kit and jack:

• The jack makes servicing the underside of the mower deck safer and easier.
• Placed in the storage position, the jack can be carried on the machine, always available for use.
  • The jack will need to be removed when using front ballast that is required for a rear material collection system.

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 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.

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

Durable rear bumper provides protection

A rear bumper is provided on the machine for rear protection. The bumper is made of compression molded ultra-high molecular weight (UHMW) polyethylene plastic which provides abrasion resistance to protect the machine and the property.

The hydrostatic drive features a Kanzaki® DUP 17SB dual-unitized hydraulic pump. This dual pump, in a single housing, provides longer life and less maintenance than competitive units.

The pump features a shaft-driven fan for added cooling and longer component life. The swash-plate bearings are roller-type versus ball-type bearings for a longer overall pump life.

The transmission module integrates the dual pumps and steering valves in one single housing. The pump is shaft-driven from the engine. An isolator ensures reduced vibration between the engine and the transmission module.

Two wheel motors are installed on the chassis to directly transfer power to both wheels. Commercial-grade, heavy-duty Hydro-Gear HGM18L 17.8-cu in. (292-cc) wheel motors are also important components of the overall drive system efficiency.

Rigid hydraulic lines are installed between the hydraulic module and wheel motors for long life.

An internal wet disk park brake is integrated in the transmission.

Kanzaki is a trademark of Kanzaki Kokyukoki Manufacturing Company. Hydro-Gear is a trademark of Hydro-Gear Limited Partnership.

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.

Foldable ROPS and a retractable seat belt are standard equipment:

• Position adjustment pins provide a good grip and make changing the angle of the ROPS easier.
• If operating in low clearance areas, the ROPS can be folded down and secured out of the way.
• 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 full-raised position.
  • Easy-fold ROPS improves the ability to store the mower in structures with a lower door opening.

The retractable seat belt is within easy reach of the operator for use when operating with the ROPS up.

ROPS are foldable to allow trimming, such as under trees or bushes:

• To fold, remove two pins and rotate the top of the ROPS.
• Adjustment can be made from the operator's seat.
• ROPS must be in the upright and locked position when low clearance is not required.

The folding ROPS performance is certified at the date of manufacture according to ISO 21299.

Ergonomic ROPs T-Handle

The ROPS on Diesel ZTrak™ Mowers is equipped with an ergonomic T-handle. Unlike long-pin designs, the large T-handle provides leverage to release the pin and can be turned 90 degrees to keep the pin retracted while the ROPS is repositioned. Springs snap the T-handle pin into place allowing the operator to use both hands to move the ROPS.

ROPS position
Height at top of ROPS

Full height
77.3 in. (196 cm)

Down
50.9 in. (129 cm)

Safety certification

John Deere commercial mowers are evaluated by the manufacturer (John Deere Turf Care) and conform to American National Standards Institute (ANSI) / Outdoor Power Equipment Institute (OPEI) 5395-1 and 5395-3 safety requirements for combustion-engine-powered lawnmowers.

Optional Light-emitting diode (LED) work lights

BUC11975 LED work lights are available as a field installed attachment.

Optional LED beacon light

BUC11406 LED beacon light is available as a field installed attachment. The beacon light is short to avoid damage.

Overview

A JDLink™ M Modem connects a commercial mower to the John Deere Operations Center, which enables you to manage your fleet more efficiently, increase productivity, and reduce labor costs. With a modem and Operations Center, you are always connected to the work in progress and can make timely adjustments to keep your fleet mowing.

JDLink M Modem

A JDLink M Modem is standard equipment on model year 2024 and newer TerrainCut Front and Wide-Area Mowers.

A modem can be field installed on:

• Model year 2024 and newer Z700 ZTrak™ Mowers
• Model year 2024 and newer gasoline-powered Z900 ZTrak Mowers
• Model year 2024 and newer Z994R ZTrak Mowers
• Model year 2021 and newer Z997R ZTrak Mowers
• Model year 2024 and newer Q800 QuikTrak™ Mowers
• Model year 2025 and newer R Series commercial walk-behind mowers
• Model year 2022-2023 TerrainCut Front Mowers
• Model year 2023 TerrainCut Wide-Area Mowers

See compatibility section for serial number breaks and requirements.

John Deere Operations Center

The John Deere Operations Center tracks your fleet and provides tools to analyze mower data. The connected features vary by mower model.

Models

Location and status

GPS

speed

Geofencing and curfews

Engine hours

Maintenance planner

Machine Analyzer Tool

Fuel level

Fuel consumption

Diagnostic trouble codes

Service Advisor Remote

Z700 ZTrak Mowers

X

X

X

Key

X

X

---

---

---

---

Z900 ZTrak Mowers with carbureted engines

X

X

X

Key

X

X

---

---

---

---

Z900 ZTrak Mowers with EFI engines

X

X

X

Sync

X

X

X

X

X

X

Z994R ZTrak Mowers

X

X

X

Key

X

X

---

---

---

---

Z997R ZTrak Mowers

X

X

X

Sync

X

X

---

X

X

X

E Series QuikTrak Mowers

X

X

X

Key

X

X

---

---

---

---

Q820M, Q850M, and Q850R QuikTrak Mowers

X

X

X

Sync

X

X

X

---

X

---

Q865R EFI QuikTrak Mowers

X

X

X

Sync

X

X

X

X

X

X

R Series commercial walk-behind mowers

X

X

X

Key

X

X

---

---

---

---

1550 TerrainCut Front Mowers

X

X

X

Key

X

X

---

---

---

---

1570, 1575, 1580, and 1585 TerrainCut Front Mowers

X

X

X

Key

X

X

---

X

X

X

1600 TerrainCut Wide-Area Mowers

X

X

X

Key

X

X

---

X

X

X

Location and status

The JDLink M Modem regularly transmits the location and operational status of each mower in the fleet so you can monitor mowing progress in Operations Center.

• Location history-Display of map with current and past locations of each mower.
• GPS Speed-Maps each mower’s current speed, based on GPS location data, so you can target operator training.
• Hours of operation-Reports the time of day the vehicle has been operated.
• Geofencing-Alerts when a mower enters or exits a prescribed area, for example if the mower has been stolen or an operator entered an area that should not be mowed.
• Curfews-Alerts if the mower is operating outside prescribed times, for example residential areas with early-morning noise restrictions.

Engine hours

The modem regularly transmits the mower’s engine hours to inform maintenance planning and balance use.

• Sync-The mower reports actual engine hours to the Operations Center.
• Key-Engine hours are estimated by monitoring the key switch. Engine hours can be corrected in Operations Center.

Maintenance planner

Factory or custom maintenance plans can be established in Operations Center. Maintenance alerts are sent when engine hours reach maintenance intervals.

Machine Analyzer Tool

On select products, the modem reports the time the mower spent transporting, idling, and working. The Operations Center’s Machine Analyzer tool reports usage data which allows you to analyze operator behavior, identify causes of low productivity, and initiate corrective actions.

Fuel level

On select products, the modem reports the fuel level. On these products, an analysis of fuel consumption is available in the Operations Center Machine Analyzer Tool. Measuring fuel consumption enables you to address causes of excessive fuel use.

Diagnostic trouble codes (DTCs)

On select products, the modem transmits the trouble codes generated by the mower’s control units to the Operations Center. Addressing DTCs can reduce downtime and repair costs. For example, a low-engine oil pressure DTC can indicate an engine is low on oil. Addressing the issue can prevent costly downtime and repairs.

To help address issues quickly, when a DTC is generated, the Operations Center can display a push notification on the mobile app and send an email. Operations Center can also be configured to limit notifications to stop-level severity DTCs.

Service Advisor Remote

On select products, John Deere dealers can perform remote diagnostics, software programming, and adjustments without the cost of a service call.

Compatibility

A JDLink M Modem is standard equipment on model year 2024 and newer (SN 110,001-) TerrainCut Front Mowers and model year 2024 and newer (SN 690,001-) TerrainCut Wide-Area Mowers.

A JDLink M Modem can be field installed on the commercial mowing products listed below. Field installation attachments simplify modem installation, and include brackets, mounting hardware, harness, and instructions. Field installation requires a JDLink M Modem to be ordered separately. The field installation attachments include a wiring harness therefore the modem should be ordered with the less harness option code.

Model

Compatible model years

Installation attachment

Z700 ZTrak Mowers

2024 and newer (SN 080,001-)

BUC11759

Gasoline-powered Z900 ZTrak Mowers

2024 and newer (SN 130,001-)

BUC11759

Z994R ZTrak Mowers

2024 and newer (SN 070,001-)

BUC11759

Z997R ZTrak Mowers

2021 and newer (SN 070,001-)

BUC11908

QuikTrak Mowers

2024 and newer (SN 010,001-)

BUC11744

R Series commercial walk-behind mowers

2025 and newer (SN 070,001-)

BUC11918

TerrainCut Front Mowers

2022-2023 (SN 080,001-110,000)

BUC11797

1600 TerrainCut Wide-Area Mowers

2023 (SN 680,001-690,000)

BUC11797

The Z998R Diesel ZTrak™ Mower is equipped with 15x6-6 flat-free front caster tires that provide:

• Excellent reliability and uptime
• 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

Rear 26x14-12, square-shoulder, 4 PR pneumatic drive tires provide excellent traction, flotation, and curb climbing.

The Z998R Diesel ZTrak Mower is not compatible with Michelin® X® Tweel® Turf tires.