Troy-Bilt 665B, 664D Engine Cleaning, Engine OIL Service, AIR Cleaner Service, Spark Plug Service

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Section 5: Maintenance

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WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove the key from the keyswitch on units so equipped.

Failure to follow these instructions can result in serious personal injury or property damage.

5.On engines with a dipstick, remove it, wipe it clean, and reinstall it finger-tight. Remove the dipstick and check the reading. Add oil (if required) to bring the level to the FULL mark. Do not overfill.

B. To Change the Engine Oil:

Change the engine oil as instructed in the separate Engine Owner’s Manual.

ENGINE CLEANING

The engine must be kept clean to assure smooth operation and to prevent damage from overheating. Refer to the separate Engine Owner’s Manual for specific repair and cleaning instructions. All inspections and services must be done with the engine shut off and cool to the touch.

Figure 5-3: Remove drain plug to drain transmission gear oil (also remove oil fill plug and oil level check plug).

ENGINE OIL SERVICE

Check the engine oil level before starting the engine each day and check it after each 5 hours of continuous operation. Running the engine when it is low on oil will quickly ruin the engine.

It is recommended that you change the motor oil after every 10 hours of opera- tion and even sooner when operating in extremely dirty or dusty conditions. Refer to the separate Engine Owner’s Manual for detailed service instructions.

A. To Check the Engine Oil Level:

1.Move the tiller to a level area and shut off the engine.

2.Level the engine by moving the Depth Regulator Lever up or down as needed.

3.Clean the area around the oil dipstick or oil fill tube to prevent dirt from falling into the crankcase.

4.On engines with an oil fill tube, remove the filler cap, add oil (if required) until it reaches the top of the tube and reinstall the filler cap.

AIR CLEANER SERVICE

The engine air cleaner filters dirt and dust out of the air before it enters the carbure- tor. Operating the engine with a dirty, clogged air filter can cause poor perfor- mance and damage to the engine. Never operate the engine without the air cleaner installed. Inspect and service the air cleaner more often if operating in very dusty or dirty conditions.

Service the air cleaner as instructed in the separate Engine Owner’s Manual.

SPARK PLUG SERVICE

Inspect and clean or replace the spark plug after every 100 operating hours or annually. Clean the plug and set the gap as described in the separate Engine Owner’s Manual.

In some areas, local law requires using resistor spark plugs to suppress ignition signals. If the engine was originally equipped with a resistor spark plug, use the same type for replacement.

SPARK ARRESTER SCREEN SERVICE

If the engine muffler is equipped with a spark arrester screen, remove and clean it according to the time intervals and instructions in the separate Engine Owner’s Manual.

CARBURETOR/GOVERNOR

CONTROL ADJUSTMENTS

WARNING

Operators shall not tamper with the engine governor settings on the machine; the governor controls the maximum safe operating speed to protect the engine and all moving parts from damage caused by overspeed. Authorized service shall be sought if a problem exists.

The carburetor was adjusted at the factory for best operating speed. Refer to the separate Engine Owner’s Manual for any adjustment information or see your authorized engine service dealer.

The governor controls the maximum safe operating speed and protects the engine and all moving parts from damage caused by overspeeding. Do not tamper with the engine governor settings. Seek autho- rized service if a problem exists.

THROTTLE CONTROL ADJUSTMENT

If the engine does not respond to various throttle lever settings, refer to the sepa- rate Engine Owner’s Manual for service information or contact your local autho- rized engine service dealer.

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Contents Operator’s Manual Calling Customer Support Table of ContentsFinding Model Number Engine InformationPreparation SafetySafety Alert Symbol TrainingUse slower engine speeds Maintenance and StorageSafety Keep children and pets awayTo Avoid Serious Injury DecalsInspect Unit AssemblyHardware BAG Parts List IntroductionAttach Forward Clutch Control Cable Attach Reverse Clutch Control CableAssistance Marked Neg AssemblyAttach Wheel Gear Lever Check AIR Pressure in TiresTo Operate the Forward Clutch Control Features and ControlsWheel Gear Lever Forward Clutch ControlDepth Regulator Features and ControlsEngine Controls Reverse Clutch ControlBREAK-IN Operation PRE-START ChecklistOperation Starting and Stopping EngineStopping the Engine Operating the TillerOperation Starting the EngineStopping the Tiller and Engine For reverse motion of the wheels and tinesChoosing correct wheel and tine speeds Tilling Tips & TechniquesTilling up and down slopes Tilling across slopes without using terracesTerrace Gardening Loading and Unloading the Tiller Power CompostingCheck Tire Pressure MaintenanceMaintenance Schedule Check HardwareTo Check Transmission Gear Oil Level MaintenanceTransmission Gear OIL Service Check for OIL LeaksSpark Plug Service Engine CleaningEngine OIL Service AIR Cleaner ServiceOFF Season Storage Wheel Gear Cable AdjustmentBolo Tines Cutting Edge Tine Checking and Adjusting Forward Clutch Belt TensionChecking Forward Belt Tension Checking and Adjusting Reverse Clutch Belt TensionRemoving Forward Clutch Belt Installing Forward Clutch BeltInstalling Reverse Clutch Belt Reverse Clutch Belt Removal and ReplacementRemoving Reverse Clutch Belt Battery Maintenance Problem Possible Cause Correction TroubleshootingHILLER/FURROWER Model OEM-290-251 Bumper Model OEM-290-254ROW MARKER- Model OEM-290-257 TROY-BILT Tiller Lifetime Limited Warranty
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E666M, 665B, 664D specifications

Troy-Bilt is a trusted name in outdoor power equipment, and their line of tillers, including the E666M, 664D, and 665B models, exemplifies their commitment to quality and practicality. These tillers are designed to make soil preparation easier and more efficient, catering to both amateur gardeners and seasoned landscapers alike.

The Troy-Bilt E666M is a robust machine tailored for ease of use and reliability. With a powerful engine, it delivers consistent performance, ensuring that users can tackle even the toughest soils. One of its standout features is the adjustable tilling width, which provides flexibility for various gardening needs. This tiller also boasts a Reverse Tillage feature, allowing the operator to break up stubborn soil with ease while enhancing control during operation.

The 664D model takes efficiency a step further with its durable construction and user-friendly design. This tiller is equipped with a dependable engine that provides ample power for deep soil cultivation. The 664D features self-propulsion technology, allowing users to maintain steady speed without exerting excessive effort. The adjustable depth settings further enhance soil penetration, making it possible to cultivate deep for extensive planting or surface till for lighter gardening tasks.

With the 665B, Troy-Bilt introduces advanced engineering for increased maneuverability and performance. This tiller features a patented belt-drive system that improves torque and ensures optimal power transfer to the tines. The 665B is also designed with comfort in mind, featuring ergonomic handles that reduce strain on the operator, making it ideal for longer gardening sessions. Its heavy-duty tines ensure exceptional soil mixing, while the adjustable tilling width and depth allow for customization according to specific gardening requirements.

All three tillers come equipped with Troy-Bilt's signature red oversized drag stake, enabling users to control tilling depth and improve stability during operation. They are designed with durable components that promise longevity and reliability, ensuring that they can withstand rigorous use season after season.

In summary, the Troy-Bilt E666M, 664D, and 665B tillers offer a variety of features and technologies that cater to every gardening need. With their reliable engines, user-friendly designs, and advanced tilling capabilities, these models embody the innovation and durability that Troy-Bilt is known for, making them excellent choices for anyone looking to elevate their gardening experience.
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