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Details the various lamps and indicators on the tractor's meter panel.
Explains the operation and functions of the tractor's ignition key switch.
Describes how to use the headlight switch for different lighting modes.
Provides information on the fuel tank capacity and how to operate the fuel shut-off valve.
Instructions for checking the engine oil level using the dipstick.
Guidance on checking the transmission hydraulic oil level via the gauge window.
Procedures for cleaning the radiator screen and checking the coolant level.
Details on accessing and cleaning the air cleaner element.
Instructions for checking and adjusting the alternator/fan belt tension.
Information on lubricating grease fittings based on operating conditions.
Maintenance schedule for engine oil, filters, and fuel/water separator.
Service intervals for transmission filters and oil replacement.
Guidance on checking and replacing front axle gear oil.
Information on the service interval for fuel filter replacement.
Details on the type and capacity of engine oil required.
Information regarding coolant capacity and replacement intervals.
Daily cleaning recommendations for the front grille screen and radiator fins.
Information on battery replacement and fuse specifications.
Daily checks for radiator hoses, air intake hoses, and hydraulic lines.
Procedure for checking the free play of the brake pedal.
Details the various lamps and indicators on the tractor's meter panel.
Explains the operation and functions of the tractor's ignition key switch.
Describes how to use the headlight switch for different lighting modes.
Provides information on the fuel tank capacity and how to operate the fuel shut-off valve.
Instructions for checking the engine oil level using the dipstick.
Guidance on checking the transmission hydraulic oil level via the gauge window.
Procedures for cleaning the radiator screen and checking the coolant level.
Details on accessing and cleaning the air cleaner element.
Instructions for checking and adjusting the alternator/fan belt tension.
Information on lubricating grease fittings based on operating conditions.
Maintenance schedule for engine oil, filters, and fuel/water separator.
Service intervals for transmission filters and oil replacement.
Guidance on checking and replacing front axle gear oil.
Information on the service interval for fuel filter replacement.
Details on the type and capacity of engine oil required.
Information regarding coolant capacity and replacement intervals.
Daily cleaning recommendations for the front grille screen and radiator fins.
Information on battery replacement and fuse specifications.
Daily checks for radiator hoses, air intake hoses, and hydraulic lines.
Procedure for checking the free play of the brake pedal.
This document serves as a quick operation and maintenance guide for Yanmar Compact Utility Tractors, specifically models SA221, SA324, and SA424. It provides essential information for operating and maintaining these tractors, covering everything from starting the engine to periodical maintenance checks.
The Yanmar Compact Utility Tractors are designed for various utility tasks, offering robust performance and versatility. They are equipped with a range of controls for travel, power take-off (PTO), and hydraulic implements, making them suitable for a wide array of applications. The tractors feature a compact design, allowing for maneuverability in diverse environments.
Starting the Engine: To start the engine, ensure the parking brake is set and locked, and the PTO switch is in the [OFF] position. For SA324/424 models, the range shift lever must be in [N] (Neutral). The operator's foot should be off both drive pedals. Advance the throttle control lever forward from the slow idle position to 1/3 to 1/2 fast positions. Finally, turn the key switch to [START]. For cold weather conditions, the HEAT position should be used for glow plugs.
Power Take Off (PTO) Operation: For PTO operation, select the desired position of the PTO select lever, either [BOTH] or [REAR], and then pull the PTO switch to [ON].
Mid PTO Reverse Override: When the Mid PTO is engaged, the PTO will automatically stop for safety if the reverse pedal is pressed without the reverse override switch being held. To operate the PTO while reversing, push and hold the reverse override switch and then press the reverse pedal. If the PTO stops due to safety, it will not re-engage automatically by driving forward. The PTO switch must be turned [OFF] and then [ON] again to reset the safety circuit and restart the Mid PTO. The override is canceled when the reverse pedal is released and must be reactivated by pushing and holding the switch again before pressing the reverse pedal.
Travel Speed Control: For SA324/424 models, stop the tractor to select the appropriate range shift lever [L/H]. Ensure the parking brake is released. To increase engine speed, push the throttle control lever forward. Travel speed can then be adjusted by pressing or releasing the drive pedals.
Additional Controls: The tractors include an implement control lever, an operator seat forward and backward lever for comfort adjustment, and a 3-Point Hitch hydraulic flow control/stop knob. A 2WD/4WD lever allows selection between two-wheel and four-wheel drive. The 3-point hitch control lever and rear 3-point hitch provide precise control over implements. A differential lock pedal (standard on SA324/424, optional on SA221) enhances traction in challenging conditions.
Meter Panel Indicators: The meter panel displays crucial information:
Fuel Tank and Fuel Shut-off Valve: The fuel tank should be filled with fresh diesel fuel, ensuring the fuel and filling equipment are clean and free of debris. Zinc-plated steel containers should be avoided; plastic or stainless containers are recommended. The fuel shut-off valve allows control over fuel flow.
Regular maintenance is crucial for the longevity and optimal performance of Yanmar Compact Utility Tractors. Always turn off the engine and allow the machine to cool down completely before performing any checks or maintenance.
Daily Check Items:
Periodical Maintenance Items:
Maintenance Kit: A maintenance kit (KIT-SA001) is available for SA221, SA324, and SA424 models, including engine oil, engine oil filter, water separator element, water separator O-ring, air cleaner, transmission oil filter, and line filter.
Yanmar emphasizes the importance of consulting the operation manual for detailed instructions and contacting a local Yanmar dealer for technical assistance, genuine parts, and service.
General| Engine Type | Diesel |
|---|---|
| Engine Power | 21.5 HP |
| Drive | 4WD |
| Hydraulic System | Open center |
| 3-Point Hitch | Category I |
| Transmission | Hydrostatic |
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