The Jonsered LT2118CMA and LT2122CMA are lawn tractors designed for efficient lawn care. These machines are equipped with various features to ensure safe operation, effective cutting, and ease of maintenance.
Function Description
The lawn tractor's primary function is to cut grass, with options for bagging, mulching, or side discharge depending on the accessories installed. It is powered by an internal combustion engine and features a hydrostatic transmission for smooth speed control. The cutting unit can be raised and lowered to adjust the cutting height, and the blades are engaged via a clutch mechanism. Safety features are integrated throughout the design to prevent accidents during operation and maintenance.
Important Technical Specifications
The LT2118CMA and LT2122CMA models share many core specifications, with differences primarily in engine power and cutting width.
Engine:
- LT2118CMA: 18 hp/kW
- LT2122CMA: 22 hp/kW
- Fuel: Unleaded gasoline.
- Oil: SAE 30 or SAE 5W-30 for colder temperatures.
Cutting Unit:
- Cutting Width: 107 cm (42 inches) for both models.
- Blade Engagement: Attachment clutch switch.
- Cutting Height Adjustment: Lever-operated, with multiple positions.
- Blades: Five-star pattern blade for LT2118CMA, six-star pattern blade for LT2122CMA.
Transmission:
- Type: Hydrostatic.
- Control: Motion control lever with four positions: Neutral (no drive), Slow, Fast, and Reverse.
Dimensions and Weight:
- Wheelbase: 0-7.3 km/h (0-4.5 mph)
- Length: 107 cm
- Blade Length: 38-102 mm
- Weight: 235 kg
Safety Features:
- Ignition Lock: Three positions (OFF, ON, START) to prevent unauthorized use and ensure proper shutdown.
- Brake and Clutch Pedal: Engages the brake and disengages the engine when pressed.
- Free-wheel Control Lever: Allows the tractor to be moved without engine aid.
- Safety Interlock System: Prevents the engine from starting or the blades from engaging under unsafe conditions (e.g., operator not in seat, parking brake not engaged, cutting unit engaged).
- Deflector: Prevents thrown objects from injuring the operator or bystanders.
Usage Features
The Jonsered lawn tractors are designed for user-friendly operation with several convenient features:
Controls:
- Light Switch: For operating headlights.
- Throttle Control: Adjusts engine speed.
- Brake and Clutch Pedal: For stopping and disengaging power.
- Motion Control Lever: Controls forward and reverse speed.
- Attachment Clutch Switch: Engages and disengages the cutting unit.
- Cutting Height Setting: Lever for adjusting the cutting height.
- Choke Control: For cold starting the engine.
- Parking Brake: Secures the tractor when parked.
Starting and Stopping:
- Cold Start: Pull the choke control, push the throttle to full gas, and turn the ignition key to "START."
- Warm Start: Push the throttle control halfway to full gas and turn the ignition key to "START."
- Stopping: Disengage the cutting unit, push the brake pedal, set the parking brake, move the motion control lever to neutral, and turn the ignition key to "OFF."
Adjustments:
- Seat Adjustment: The seat can be adjusted forward and backward for operator comfort.
- Steering Wheel Installation: Simple installation of steering wheel components.
- Battery Installation: Requires connecting positive and negative terminals, with warnings against short circuits.
Accessories:
- Bagger: For collecting grass clippings. Installation involves attaching the discharge chute, support brackets, and the bagger unit.
- Mulching Kit: Allows grass clippings to be finely cut and returned to the lawn as fertilizer.
- Discharge Deflector: For side discharge of clippings.
Maintenance Features
Regular maintenance is crucial for the longevity and safe operation of the Jonsered lawn tractor. The manual provides a detailed service record with recommended intervals for various tasks.
Routine Checks (Before Each Use):
- Check engine oil level.
- Check tire pressure.
- Check safety interlock system.
- Check brake operation.
- Check clean air screen.
- Check cutting unit for damage.
Scheduled Maintenance (Every 8, 25, 50, 100, 200 hours):
- Engine Oil: Change engine oil (with or without filter) at specified intervals.
- Lubrication: Lubricate pivot points and ball joints.
- Air Filter: Clean or replace air filter and pre-cleaner.
- Spark Plug: Replace spark plug.
- Fuel Filter: Replace fuel filter.
- Battery: Clean battery terminals.
- Muffler: Check muffler.
- Carburetor: Adjust carburetor as needed.
- Cooling Fins: Clean engine cooling fins.
Specific Maintenance Procedures:
- Oil Change: Involves draining old oil and refilling with new oil.
- Blade Maintenance: Best results are achieved with sharp, balanced blades. Replace bent or damaged blades.
- Drive Belt Replacement: Detailed instructions for replacing the drive belt for the cutting unit and the transaxle.
- Troubleshooting Guide: Provides solutions for common issues like engine not starting, engine running unevenly, engine feels weak, engine overheats, battery not charging, and lighting malfunctions.
Storage:
- Seasonal Storage: Clean the machine thoroughly, stabilize the fuel, remove the battery, and store in a dry, dust-free place.
- Warning: Never use gasoline when cleaning. Degreasing detergent and warm water are recommended.
The Jonsered LT2118CMA and LT2122CMA are robust lawn tractors designed to provide efficient and safe lawn care, supported by comprehensive maintenance guidelines to ensure optimal performance over time.
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