John Deere Z445 : Parts, Manuals, Diagrams, Specs

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John Deere z445

The John Deere Z445 is a zero-turn mower known for its efficiency and robust design, manufactured in Horicon, Wisconsin. It features a powerful 25 HP Kawasaki engine with a displacement of 675cc, providing reliable performance for residential lawn care. The mower operates on a hydrostatic transmission, which allows for smooth and precise control, making it easy to navigate tight spaces.

With a weight ranging from 665 to 680 pounds, the Z445 is designed for stability and durability. It has a wheelbase of 48 inches and comes equipped with two types of mid-mount mower decks: a 48-inch and a 54-inch option, allowing users to choose based on their mowing needs. The mower’s tires include front tires sized 13×5.0-6 and rear tires sized 22×9.50-10, contributing to its maneuverability and traction on various terrains.

The Z445 is designed with user comfort in mind, featuring power steering and an open operator station that enhances visibility and ease of use. Additionally, it includes an independent mid-PTO (Power Take-Off) clutch that operates electrically, providing flexibility when attaching various implements.

In terms of fuel capacity, the Z445 holds 3.5 gallons (13.2 liters), allowing for extended mowing sessions without frequent refueling. The mower also includes essential electrical components such as a 12-volt battery with a cold cranking amp (CCA) rating of 235.

Overall, the John Deere Z445 is well-regarded for its performance, ease of use, and versatility in maintaining residential lawns. Its combination of power, efficiency, and comfort makes it a popular choice among homeowners looking for reliable lawn care equipment.

John Deere z445 Parts

The John Deere Z445 is supported by a comprehensive range of parts designed to maintain and enhance its performance. Key components include engine parts, filters, belts, and blades, ensuring that owners can find essential replacements easily.

Engine Components: The Z445 features various engine parts such as oil filters (AM107423, AM125424) and spark plugs (M805853, MIU11020), which are crucial for maintaining engine health.

Filters: Regular maintenance requires several filters, including fuel filters (AM116304), hydraulic filters (MIU13018), and transaxle filters (AM131054). These parts help ensure optimal operation by keeping the engine and hydraulic systems clean.

Belts: The mower uses several belts, including those for hydro drive (M154157), traction drive (M169705), and mower decks (M158130, M158131). These belts play a vital role in the mower’s movement and cutting capabilities.

Blades: For cutting efficiency, the Z445 can be equipped with standard blades (M145476) or mulching blades (M127673), allowing users to customize their mowing experience based on lawn conditions.

Maintenance Kits: John Deere offers home maintenance kits specifically for the Z445, which include various necessary parts for routine servicing. This helps ensure that all required components are available for scheduled maintenance.

Accessories and Tools: Additional parts include gage wheels (GX10168), fuel caps (AM137724, AM141161), and grease guns (TY26518) for lubrication.

Overall, the availability of these parts makes it easier for Z445 owners to maintain their mowers effectively, ensuring long-lasting performance and reliability.

Engine and Transmission

  • Engine Oil Filter: AM107423, AM125424
  • Fuel Filter: AM116304
  • Hydraulic Filter: MIU13018
  • Transaxle Filter: AM131054
  • Spark Plug: M805853, MIU11020

Mower Deck Components

  • Mower Blade (Standard): M145476
  • Mower Blade (Mulching): M127673
  • Mower Deck Belt: M158130, M158131
  • Electric PTO Clutch: AM141536, AM134397
  • Deck Spindle: AM144377, AM135349

Idler Pulleys and Belts

  • Idler Pulley: AM143737, AM128118, AM135526
  • Deck Belt: M158131, M154296

Miscellaneous Parts

  • Battery (Dry Charged): TY25878
  • Ignition Switch: TCA22740, TCA15075
  • Fuel Cap: AM137724, AM141161
  • Gage Wheel: GX10168

Maintenance Kits

  • Home Maintenance Kit: LG249, LG269, LG265

John Deere z445 Specs

Engine

  • Type: Gasoline
  • Manufacturer: Briggs & Stratton
  • Power: 25 HP
  • Displacement: 675 cc (41.2 cu in)
  • Cylinders: 2
  • Fuel Tank Capacity: 3.5 gallons (13.2 liters)
  • Oil Filter: Yes

Transmission

  • Type: Hydrostatic
  • Drive: Two-wheel drive
  • Power Steering: Yes

Dimensions and Weight

  • Wheelbase: 48 inches (121 cm)
  • Overall Length: 74 inches (188 cm)
  • Height: 42.5 inches (108 cm)
  • Weight: 665 to 680 pounds (301 to 308 kg)

Tires

  • Front Tires: 13×5.0-6
  • Rear Tires: 22×9.50-10

Mower Deck

  • Cutting Width Options: 48 inches or 54 inches
  • Cutting Height Range: 1 to 4 inches (2.5 to 10.2 cm)
  • Discharge Type: Side discharge
  • PTO Type: Electric

Electrical System

  • Battery Voltage: 12 volts
  • Cold Cranking Amps (CCA): 235

Additional Features

  • Operator Presence System: Standard
  • Open Operator Station: Yes

John Deere z445 Prices

The prices for new and used John Deere Z445 mowers in the USA vary significantly based on the model year, condition, and features.

New Prices: The John Deere Z445 is typically not available as a new model anymore, as it has been succeeded by newer models in the John Deere lineup. However, the original retail price when new was generally around $4,500 to $5,500 depending on the specific features and options.

Used Prices: The prices for used John Deere Z445 mowers range widely:
– Older models (2007-2010) can be found for approximately $1,900 to $2,450.
– More recent models (2011-2015) generally range from $2,390 to $3,750 depending on hours of use and condition.
– For instance, a 2014 model with 300 hours is listed at about $1,990, while a 2013 model with 615 hours is priced at $3,750.

Overall, potential buyers can expect to pay anywhere from around $1,900 for older models to upwards of $3,750 for newer ones in good condition.

John Deere z445 Drive Belt Diagram

The John Deere Z445 features a drive belt system that is essential for its operation. Here is a summary of the drive belt diagram and related information:

– Drive Belt Configuration: The Z445 utilizes a drive belt that connects the engine to the mower deck, facilitating power transfer. The specific part numbers for the drive belts vary based on the serial number of the mower, with different belts for different production runs.

– Replacement Process: To replace the drive belt, users typically need to:
1. Remove side panels and any obstructions.
2. Unplug electrical connectors as necessary.
3. Route the new belt over the pulleys according to the diagram, ensuring it follows the correct path to avoid misalignment.
4. Reattach any components removed during the process.

– Belt Part Numbers: Common part numbers for replacement belts include M158131 for standard decks and M158409 for high-capacity decks. These numbers are crucial when sourcing replacement belts.

– Visual Aids: Diagrams are often available in user manuals or online resources, illustrating how the belt should be routed around various pulleys and components to ensure proper function.

This information provides a general overview of the drive belt system for the John Deere Z445, including replacement and routing considerations.

John Deere z445 Problems

The John Deere Z445 has been reported to experience several common problems, primarily related to engine performance and electrical issues. Here’s a summary of the key issues identified by users:

1. Engine Surging and Stalling: Many users have reported that their Z445 mowers experience surging during operation, which can lead to stalling. This problem often occurs intermittently, making it difficult to diagnose. Common troubleshooting steps include replacing spark plugs, air filters, and fuel filters, but these may not resolve the issue. Users have suggested that the problem might be related to fuel delivery or electrical components, such as the seat switch or ignition system.

2. Fuel Delivery Issues: Problems with fuel delivery have been highlighted, including clogged fuel filters or malfunctioning fuel pumps. Some users noted that their mowers would start fine but then bog down or die after a short period of use. This can sometimes be alleviated by cleaning the carburetor or ensuring that the gas cap vent is not blocked.

3. Electrical Problems: Issues with battery charging have also been reported. Some users found that their Z445 would not maintain a charge despite replacing various components like the voltage regulator and battery. This can lead to difficulties in starting the mower, even when there is evident fuel supply.

4. Oil Leaks and Engine Shutdown: Instances of oil leaks from the oil filter gasket have been reported, leading to engine shutdowns after a brief period of operation. Users have had to replace oil filters and refill engine oil to restore functionality.

5. General Maintenance Challenges: Regular maintenance is crucial for preventing these issues, but some users have noted that even with proper upkeep, problems still arise. This includes fouling spark plugs quickly due to rich fuel mixtures, which can indicate deeper mechanical issues.

Overall, while the John Deere Z445 is generally regarded as a reliable mower, these recurring problems can affect performance and require careful troubleshooting and maintenance to resolve effectively.

John Deere z445 Parts Diagram

The John Deere Z445 is a zero-turn mower that requires regular maintenance and specific parts for optimal performance. Here’s a summary of the key components and maintenance guidelines for this model:

Maintenance Parts

  • Engine Oil Filters: Two types are required (AM107423 and AM125424), both needing replacement every 8, 50, 100, 150, 200, and 250 hours.
  • Fuel Filters: Two filters (AM116304) should be replaced every 100 and 200 hours.
  • Air Filters: Different types (foam and paper) are needed, with replacements recommended every 100 and 200 hours.
  • Spark Plugs: Two types (M805853 and MIU11020) are used, requiring replacement every 100 and 200 hours.

Commonly Used Parts

  • Hydraulic Filter: AM131054
  • Ignition Switch: TCA22740
  • Battery: TY25878
  • Belts: Various belts for hydro drive, traction drive, and mower deck.

Additional Components

  • Mower Blades: Available in standard and mulching types.
  • Belt Kits: Specific belts for power flow and mower functions.

As Needed Parts

These include items like the mower deck leveling gauge (AM130907) and grease gun (TY26518), which may be necessary for ongoing maintenance.Regular servicing with these parts ensures the longevity and efficiency of the John Deere Z445 mower.

John Deere z445 Deck Size

The John Deere Z445 is equipped with two different mower deck sizes, allowing for flexibility in cutting width:

  • 48-inch Mid-Mount Mower Deck: This is the standard deck size that provides a balance between maneuverability and cutting efficiency.
  • 54-inch Mid-Mount Mower Deck: This larger option offers increased cutting capacity, ideal for larger lawns and more extensive mowing tasks.

Both decks are designed for durability and ease of maintenance, with adjustable cutting heights ranging from 1 to 4 inches. The choice of deck size can impact mowing speed and efficiency based on the specific needs of the user and the terrain being mowed.

John Deere z445 Engine

The John Deere Z445 is powered by a 25 HP Kawasaki engine, specifically a 675cc, 2-cylinder gasoline engine. This engine is designed for reliable performance in a zero-turn mower configuration.

Specifications

  • Horsepower: 25 HP
  • Engine Type: 2-cylinder gasoline
  • Displacement: 675 cc
  • Fuel Tank Capacity: 3.5 gallons (13.2 liters)

Features

  • The engine utilizes a full pressure lubrication system and has an oil filter for enhanced maintenance.
  • It operates on gasoline, with a fuel system designed for efficient performance.
  • The Z445 has a negative ground electrical system with a 12-volt battery rated at 235 cold cranking amps.

Maintenance Considerations

Regular maintenance is essential for optimal engine performance, including timely changes of the air filter, fuel filter, and spark plugs. Users have reported issues such as engine surging and bogging down, often related to maintenance practices or fuel quality.

Proper upkeep can mitigate these problems and ensure the engine runs smoothly.

John Deere z445 Reviews

Reviews of the John Deere Z445 zero-turn mower highlight a mix of positive experiences and some concerns from users.

Positive Feedback

  • Performance: Many users appreciate the Z445’s smooth operation and powerful 25 HP Kawasaki engine, noting it significantly outperforms older models. It is praised for its efficiency in cutting grass and maneuverability around obstacles.
  • Build Quality: The mower is often described as well-built, with a commercial-grade transmission that enhances its durability and performance. Users have reported minimal issues after purchase, indicating reliability.
  • User Experience: Owners have mentioned the ease of use and comfort, particularly when compared to other brands. The mower’s design allows for a pleasant mowing experience, even for extended periods.

Areas of Concern

  • Maintenance Issues: Some users have encountered problems with the carburetor and the need for regular maintenance, such as replacing blades and adjusting the mower deck height. These adjustments are necessary to ensure optimal cutting performance.
  • Fuel Capacity: The small fuel tank (3.5 gallons) has been noted as a drawback, requiring more frequent refueling during larger mowing tasks.
  • Deck Performance: There are reports of the mower deck clogging when wet, which can affect cutting efficiency. Users have also pointed out that the blowout from the front can be problematic at certain cutting heights.

Overall, while the John Deere Z445 is generally well-regarded for its performance and build quality, potential buyers should be aware of maintenance needs and some operational limitations.

John Deere z445 Hydraulic Pump

The hydraulic pump in the John Deere Z445 is a Kanzaki Dup-10, which is integral to the mower’s performance. This pump is responsible for powering the hydraulic system, allowing for smooth operation of the mower’s movement and steering.

Specifications and Capacity

  • Hydraulic Reservoir Capacity: Approximately 8.5 liters (9 quarts) with a total system capacity of about 9.9 liters (10.5 quarts) when including the filter.
  • Fluid Type: The recommended hydraulic fluid is John Deere Low Viscosity HY-GARD (J20D), which helps reduce noise and improve responsiveness.

Maintenance

Regular maintenance of the hydraulic system is crucial for optimal performance. Users are advised to check the hydraulic fluid level periodically and change it as needed, particularly if there are signs of contamination or performance issues. The process involves draining the old fluid, replacing the filter, and refilling with fresh hydraulic fluid.

Common Issues

Some users have reported problems such as reduced engagement on one side of the mower, which may indicate issues with the hydraulic pump or system.

Flushing the hydraulic system can sometimes resolve these issues, ensuring that air does not enter the system during maintenance.Overall, proper care and timely maintenance of the hydraulic pump and associated components are essential for ensuring the longevity and efficiency of the John Deere Z445 mower.

John Deere z445 Battery

The battery used in the John Deere Z445 is a 12-volt unit with a cold cranking amp (CCA) rating of 235. This battery is designed to provide reliable starting power and is built to withstand various environmental conditions, ensuring durability and performance.

Key Features
– **Voltage**: 12 volts
– **Cold Cranking Amps**: 235 CCA, which is sufficient for starting the mower in cold conditions.
– **Design**: The battery features a tough poly case and cover, enhancing its resistance to vibration and external damage.

Maintenance Tips
Proper maintenance is crucial for the longevity of the battery. Users are advised to keep the battery fully charged, especially before winter months, as a low state of charge can lead to freezing and reduced performance. Regular inspection of battery terminals for corrosion is also recommended, as corrosion can impede electrical connections and affect starting reliability.

Common Issues
Some users have reported problems with the battery not holding a charge or failing to start the mower reliably. Troubleshooting often involves checking connections, ensuring the battery is adequately charged, and verifying that the charging system (including the voltage regulator and stator) is functioning correctly.

Overall, while the John Deere Z445 battery is generally reliable, attention to maintenance and timely troubleshooting of issues can help ensure optimal performance.