Kubota T1670 Parts and Parts Manual PDF

Kubota T1670 Parts

The Kubota T1670 is a compact and efficient riding lawn mower designed for residential use.

Powered by a reliable gasoline engine, it features a hydrostatic transmission for smooth and easy operation, allowing users to control speed and direction with precision.

With a cutting width of approximately 44 inches, the T1670 is equipped to efficiently mow medium to large-sized lawns. Its durable construction and ergonomic design ensure user comfort and longevity.

Additionally, the mower incorporates safety features such as a Rollover Protection System (ROPS) for enhanced operator security.

Overall, the Kubota T1670 combines performance, convenience, and safety, making it a versatile choice for homeowners seeking a reliable and user-friendly riding mower.

Kubota T1670 40″ Deck Parts

  1. Blades: The cutting blades are essential components for a mower deck, and they may need replacement over time due to wear and tear.
  2. Deck Belt: A deck belt is crucial for transferring power from the engine to the mower blades. Regular inspection and replacement are recommended.
  3. Idler Pulleys: These pulleys help maintain proper tension on the deck belt, and they may need replacement if they become damaged or worn.
  4. Spindles: Spindles support the mower blades and can wear out over time. Replacing them may be necessary to maintain optimal cutting performance.
  5. Deck Housing: The main structure of the deck that houses the blades. Check for cracks or damage that may affect cutting efficiency.
  6. Deck Wheels: These wheels help support the mower deck and ensure an even cutting height. They may need replacement if they become damaged or worn.
  7. Fasteners and Hardware: Various nuts, bolts, and other fasteners are used to secure the components of the mower deck. Replacement may be necessary if any are lost or damaged.

Where to buy

You can find parts for the Kubota T1670 40″ deck at various online stores and equipment websites. Here are some examples:

Coleman Equipment: Offers genuine OEM parts online or in-store for the Kubota RCK40LTB(T1670). They provide a parts diagram on their website
German-Bliss: Sells parts for the Kubota RCK40LTB(T1670), including the mower deck and cover parts
Messicks: Provides parts diagrams for the Kubota T1670 and T1670A, including attachments and grass catchers.

Kubota T1670 Pulley Parts

Common pulleys associated with the T1670 include idler pulleys and spindle pulleys. Idler pulleys help maintain proper tension on the deck belt, while spindle pulleys are associated with the mower blade spindles.

There are multiple pulleys on a Kubota T1670, including:

  • Mower deck pulleys: Blade pulley, idler pulley, tension pulley, etc.
  • Engine pulleys: Crankshaft pulley, alternator pulley, PTO pulley, etc.
  • Hydrostatic transmission (HST) pulleys: Drive pulley, driven pulley, etc.

The pulley specifications for the Kubota T1670 can be found in the parts diagrams available on various websites. You can refer to the following sources for the specific pulley parts and their details:

  1. Messicks: Provides a parts diagram for the Kubota T1670, including the pulley, PTO tens. You can find the pulley specifications and details on their website.
  2. German-Bliss: Offers parts for the Kubota RCK40LTB(T1670), including the mower deck and cover parts. You can find specific pulley parts and their details on their website.

Kubota T1670 Parts Manual PDF

  1. Introduction:
    • Model and serial number information.
    • Safety guidelines and precautions.
  2. Table of Contents:
    • An organized list of sections and parts categories.
  3. Illustrations and Diagrams:
    • Exploded views or diagrams of the mower and its various components.
    • Parts are typically numbered and labeled for reference.
  4. Main Sections:
    • Engine Components: Information on the engine, including air filter, carburetor, and other related parts.
    • Chassis and Frame: Details on the main frame, wheels, and related components.
    • Mower Deck: Breakdown of the mower deck, including blades, spindles, pulleys, and belts.
    • Transmission and Drive Components: Information on the transmission system, including belts and pulleys.
  5. Part Listings:
    • A comprehensive list of all parts, often organized by category or system.
    • Each part is usually accompanied by a part number and description.
  6. Appendix or Index:
    • Additional information or index to help users quickly locate specific parts.
  7. Ordering Information:
    • Instructions on how to order replacement parts, including contact details for authorized dealers or distributors.

Kubota T1670 Parts Diagram

You can typically find detailed parts diagrams in the official Kubota parts catalog or manuals. Here’s how to find it

  1. Kubota Official Website: Visit the official Kubota website (https://www.kubota.com/) and navigate to the “Support” or “Owner’s Center” section. Look for a section on manuals or parts catalog. You may need to enter your mower’s model number (T1670) to access the specific documentation for your machine.
  2. Authorized Kubota Dealership: Contact an authorized Kubota dealership. They can often provide or help you locate parts diagrams for your specific model. Many dealerships have online portals where you can search for parts and view diagrams.
  3. Online Manuals Repositories: Websites like ManualsLib (https://www.manualslib.com/) or ManualsOnline (https://www.manualsonline.com/) might have user manuals and parts diagrams. You can search for the Kubota T1670 and explore the available documentation.
  4. Third-Party Parts Retailers: Some third-party parts retailers or online marketplaces specializing in lawn mower parts may also provide parts diagrams for reference.
  5. Specific Searches: Use search engines and perform specific queries like “Kubota T1670 parts diagram” or “Kubota T1670 parts manual.” Be cautious and ensure you are accessing information from reputable sources, that is not copyrighted.

Kubota T1670 Drive Belt Diagram

The drive belt diagram can be found as above – below is a bit more specific information :
The drive belt diagram may vary slightly based on the model year and specific configuration, so it’s essential to refer to your mower’s manual or parts diagram for precise information. Here’s a general overview:
  1. Engine Pulley:
    • The drive belt starts from the engine pulley, which is connected to the mower’s engine.
  2. Transmission System:
    • The drive belt then extends to the transmission system. The transmission typically includes a variable-speed pulley or a hydrostatic transmission that controls the mower’s speed.
  3. Deck Engagement:
    • Some mowers have a PTO (Power Take Off) system that engages the mower deck. The drive belt may be routed through a PTO clutch to power the blades when engaged.
  4. Mower Deck:
    • The drive belt is often connected to pulleys on the mower deck. These pulleys are responsible for turning the blades.
  5. Idler Pulleys:
    • Idler pulleys help maintain tension on the drive belt. They are strategically placed to ensure proper belt tension during operation.

To obtain the precise drive belt diagram for your Kubota T1670, consider the following steps:

  • Check the Owner’s Manual: The owner’s manual for your mower should include a parts diagram or a section detailing the drive belt routing.
  • Parts Catalog: Access the official Kubota parts catalog through the Kubota website or an authorized dealership. Look for the section related to the drive belt or the mower deck.
  • Online Resources: Search for “Kubota T1670 drive belt diagram” on search engines. Some online forums or Kubota-specific websites may provide user-contributed content with diagrams.

Kubota T1670 Steering Problems

Steering problems on a Kubota T1670 riding mower can be caused by various factors. Here are some common issues and troubleshooting steps you can take:

  1. Check Tire Pressure:
    • Uneven tire pressure can affect steering. Ensure that the tires are properly inflated according to the manufacturer’s recommendations.
  2. Inspect Front Axle:
    • Examine the front axle for any signs of damage or misalignment. If there is damage, it may need to be repaired or replaced.
  3. Steering Linkages:
    • Inspect the steering linkages for any loose or damaged components. Tighten any loose connections, and replace any damaged parts.
  4. Steering Gear Assembly:
    • Check the steering gear assembly for proper lubrication and any signs of wear. Lubricate the steering components according to the manufacturer’s recommendations.
  5. Wheel Spindles:
    • Inspect the wheel spindles for wear or damage. Worn spindles can cause play in the steering. Replace any worn components.
  6. Steering Wheel Alignment:
    • Ensure that the steering wheel is properly aligned. If the steering wheel is off-center when the wheels are straight, it may require adjustment.
  7. Steering Gear Adjustment:
    • Some mowers have a steering gear adjustment. Consult the owner’s manual for your specific model to see if adjustments can be made to the steering gear.
  8. Inspect Steering Components for Debris:
    • Check for any debris or obstructions around the steering components that might be impeding their movement.
  9. Power Steering Fluid (If Applicable):
    • If your mower has power steering, check the power steering fluid level. Low fluid can cause steering issues.
  10. Professional Inspection:
    • If the steering problems persist, it may be advisable to have a professional technician or a Kubota authorized service center inspect the mower. They can diagnose and address more complex issues.

Kubota T1670 Loosing Prime from Fuel Tank

This could be due to several reasons :
  1. Fuel Cap Vent:
    • Check the fuel cap vent to ensure it is not clogged. If the vent is blocked, it can create a vacuum in the fuel tank, leading to fuel supply issues.
  2. Fuel Lines:
    • Inspect the fuel lines for cracks, leaks, or any other visible damage. Replace damaged fuel lines as necessary.
  3. Fuel Filter:
    • The fuel filter may be clogged, restricting fuel flow. Replace the fuel filter according to the manufacturer’s recommendations.
  4. Fuel Shut-Off Valve:
    • If your mower is equipped with a fuel shut-off valve, make sure it is fully open. If it’s partially closed, it can restrict fuel flow.
  5. Fuel Pump Issues:
    • Check the fuel pump for any signs of malfunction. The pump should be delivering a steady flow of fuel. If it’s not working properly, it may need to be replaced.
  6. Fuel Tank Vent:
    • Ensure that the fuel tank vent is clear and not obstructed. A blocked vent can lead to a vacuum forming in the tank, preventing proper fuel flow.
  7. Primer Bulb:
    • If your mower has a primer bulb, check it for cracks or damage. A damaged primer bulb can lead to air entering the fuel system.
  8. Tighten Connections:
    • Inspect all fuel line connections, including those at the fuel filter, fuel pump, and carburetor. Ensure that they are tight and secure to prevent air leaks.
  9. Fuel Quality:
    • Ensure that you are using clean and fresh fuel. Stale or contaminated fuel can lead to fuel system issues.

Kubota T1670 – Repairing Hydrostatic Transmission

Repairing a hydrostatic transmission on a Kubota T1670 riding lawn mower can be a complex task that may require mechanical expertise.

Hydrostatic transmissions are critical components, and badly done repairs can lead to further damage or safety hazards.

  1. Identify the Issue:
    • Diagnose the specific problem with the hydrostatic transmission. This could include issues like loss of power, erratic movement, or unusual noises.
  2. Fluid Check:
    • Ensure that the transmission fluid level is correct and that the fluid is in good condition. Low fluid levels or contaminated fluid can lead to transmission problems.
  3. Fluid Replacement:
    • If the fluid is old or contaminated, drain and replace it with the recommended type of hydraulic fluid according to the manufacturer’s specifications.
  4. Inspect for Leaks:
    • Check for any oil leaks in the transmission system. Leaks can lead to a loss of fluid and, consequently, transmission failure.
  5. Belt Inspection:
    • Inspect the drive belt for wear, damage, or misalignment. Replace the belt if necessary.
  6. Pump and Motor Inspection:
    • Hydrostatic transmissions consist of a pump and a motor. Inspect these components for damage, wear, or any signs of malfunction.
  7. Filter Replacement:
    • If your hydrostatic transmission has a filter, replace it according to the manufacturer’s recommendations.
  8. Professional Help:
    • If the issue persists or if you’re unsure about any aspect of the repair, consider seeking help from a professional technician who is experienced with hydrostatic transmissions.

Kubota T1670 Common Problems :

Some common problems with the Kubota T1670, as reported by users, include engine starting issues, fuel and ignition problems, and concerns related to safety switches and mower deck components.

These problems can manifest as difficulty starting the engine, fuel delivery issues, ignition problems, and challenges with safety switches and mower deck components.

  1. Starting Issues:
    • Some users have reported difficulties starting the engine. This could be due to issues with the ignition system, battery, or starter motor.
  2. Fuel System Problems:
    • Problems with the fuel system, such as clogged fuel filters or carburetor issues, can lead to performance issues or engine stalling.
  3. Hydrostatic Transmission Issues:
    • Users may encounter problems with the hydrostatic transmission, such as loss of power, erratic movement, or unusual noises. This could be due to low fluid levels, leaks, or other transmission-related issues.
  4. Electrical System Problems:
    • Wiring issues, faulty switches, or problems with safety interlock systems can cause electrical problems, affecting the mower’s overall performance.
  5. Blade Engagement Issues:
    • Some users have reported difficulties engaging or disengaging the mower blades. This could be due to problems with the PTO (Power Take Off) switch or related components.
  6. Steering Problems:
    • Steering issues, including difficulty in steering or uneven steering, could be caused by problems with the front axle, steering linkages, or other related components.
  7. Deck Belt and Blade Problems:
    • Issues with the mower deck, such as worn-out belts, damaged blades, or problems with spindle pulleys, can affect cutting performance.
  8. Tire Problems:
    • Uneven tire pressure, tire damage, or wheel alignment issues can impact the mower’s stability and steering.
  9. Excessive Vibration:
    • Excessive vibration during operation could be a sign of imbalanced blades, loose fasteners, or problems with the mower deck.
  10. General Wear and Tear:
    • Over time, components such as belts, filters, and blades may wear out and require replacement. Regular maintenance is essential to prevent premature wear.

Ignition Problems :

The causes of an ignition problem on a Kubota T1670 can vary and may include issues such as a faulty spark plug, a malfunctioning safety switch, a depleted battery, a blown fuse, or fuel delivery problems.

Additionally, leaving the ignition on and depleting the battery, as well as issues with safety switches and fuel delivery after running out of gas, can also contribute to ignition-related issues.

Fuel Pressure Regulator Problems

Signs of a fuel pressure regulator problem can include engine starting issues, poor engine performance, stalling, and fuel leaks.

How to fix a Safety Switch problem on a Kubota T1670

The common safety switch problems on the Kubota T1670 include issues with the seat, PTO, rocker pedal, and transmission switches.

These problems can lead to intermittent starting issues or prevent the tractor from starting. Symptoms of safety switch problems may manifest as the tractor not starting when a switch is not in the neutral position.

To address these issues, it is recommended to clean the switches, ensure they are in the neutral position, and inspect the wiring for any damage or loose connections.

To fix a safety switch problem on a Kubota T1670, you can follow these general troubleshooting steps :

Identify the Safety Switches: The Kubota T1670 has multiple safety switches, including seat, PTO, rocker pedal, and transmission switches. These switches need to be in the neutral position for the tractor to start.

Check for Neutrality: Ensure that all safety switches are in the neutral position. For example, the seat switch should be jumped to remove it from the circuit, and then proceed through a process of elimination to identify the problematic switch.
Clean the Switches: Clean the safety switches by blowing them out with compressed air to remove any debris or obstructions that may affect their functionality.
Inspect Wiring: It is often necessary to check both the switches and the wiring for any damage or loose connections that may be causing the safety switch issue
Consult a Technician if Needed: If the above steps do not resolve the safety switch problem, it is advisable to seek assistance from a qualified technician or a Kubota dealership for further diagnosis and repair.