This document is an operator's manual for the Toro ProLine 21in Recycler®/Rear-Bagging Walk Power Lawn Mower, Model No. 22177—250000001 and Up. It provides comprehensive instructions for safe operation, maintenance, and troubleshooting of the device.
Function Description:
The Toro ProLine 21in Recycler®/Rear-Bagging Walk Power Lawn Mower is designed for cutting grass and can be configured for either mulching (Recycler®) or rear-bagging operations. It is a walk-behind rotary lawn mower powered by an internal combustion engine. The mower features a self-propel drive system, allowing the operator to control the ground speed. It is equipped with a blade brake clutch (BBC) system for safety, which stops the blade within 3 seconds of releasing the blade control bail. The mower is designed to meet or exceed CPSC blade safety requirements and ANSI B71.4 specifications.
Important Technical Specifications:
- Model Number: 22177—250000001 and Up
- Engine Type: Internal combustion engine (gasoline-powered)
- Cutting Width: 21 inches
- Oil Capacity (with oil filter): 30 ounces (0.88 L)
- Oil Capacity (without oil filter): 24 ounces (0.70 L)
- Recommended Oil: High-quality SAE 30 or SAE 10W30 detergent oil with API service classification SF, SG, SH, or SJ.
- Fuel Type: Clean, fresh, lead-free gasoline with an octane rating of 87 or higher.
- Fuel Tank Capacity: Fill to 1/4 to 1/2 inch (6 to 13 mm) below the filler neck.
- Spark Plug Type: NGK BPR5ES or equivalent.
- Spark Plug Gap: 0.030 inches (0.76 mm).
- Spark Plug Torque: 17 ft-lb (23 N·m).
- Blade Nut Torque: 15 to 27 ft-lb (20 to 37 N·m).
- Cutting Heights: Adjustable to 1 inch (25 mm), 1-1/2 inches (38 mm), 2 inches (51 mm), 2-1/2 inches (64 mm), 3 inches (76 mm), and 3-1/2 inches (89 mm).
- Ground Speeds: 3 settings (slow, medium, fast) for the self-propel drive.
- Sound Levels: Produces sound levels in excess of 85dBA at the operator's ear.
Usage Features:
- Handle Adjustment: The handle height can be adjusted for operator comfort.
- Discharge Tunnel Plug: Allows for mulching operation by securely plugging the discharge tunnel. It can be removed for rear-bagging.
- Grass Bag: Used for collecting grass clippings during rear-bagging. The manual provides instructions for installing and removing the grass bag.
- Self-Propel Drive: Engaged by squeezing the blade control bail against the handle. The ground speed can be varied by adjusting the distance between the control bar and the handle, or by using the ground speed selector.
- Blade Control Bail: A safety feature that engages and disengages the blade. Releasing it stops the blade within 3 seconds.
- Throttle Control: Used to start and stop the engine, and to regulate engine speed.
- Fuel Valve: Controls the flow of fuel to the engine.
- Cutting Height Adjustment: Each wheel is adjusted individually using a lever to set the desired cutting height.
- Mowing Tips: Provides guidance on optimal cutting heights for different grass conditions, alternating mowing directions for even fertilization, and handling tall grass or leaves.
- Safety Decals: Various warning and instruction decals are present on the mower to alert operators to potential dangers and proper operating procedures.
Maintenance Features:
The manual outlines a detailed maintenance schedule to ensure optimal performance and longevity of the lawn mower.
- Each Use:
- Check engine oil level.
- Check blade brake stopping time (must stop within 3 seconds).
- Remove grass clippings and dirt from under the housing.
- Clean the discharge tunnel and plug.
- 5 Hours:
- Check and tighten blade and engine mounting fasteners.
- 25 Hours:
- Clean the foam pre-cleaner of the air cleaner.
- Change engine oil (first change, then every 50 hours).
- Sharpen or replace the blade.
- Clean the blade brake clutch shield.
- Check for fuel system leaks and deteriorating fuel hose.
- Remove grass clippings and debris from under the belt cover.
- Lubricate the pivot arms.
- 75 Hours:
- Adjust the self-propel drive system.
- 100 Hours:
- Change the oil filter.
- Inspect and replace the spark plug if necessary.
- Clean the paper air filter.
- Clean the cooling system (engine air cooling fins and starter).
- Clean the fuel filter.
- Lubricate the gear case.
- 300 Hours:
- Replace the paper air filter.
- Storage:
- Empty the fuel tank.
- Change engine oil (if not done recently).
- Add oil to the crankcase through the spark plug hole for engine preservation.
- Clean the lawn mower thoroughly (housing, cylinder, engine parts).
- Check blade condition.
- Service air filter.
- Lubricate pivot arms.
- Tighten all fasteners.
- Touch up paint surfaces.
- Specific Procedures:
- Engine Oil: Instructions for filling, checking, and changing engine oil, including the use of an oil filter.
- Fuel System: Instructions for filling the fuel tank, using fuel stabilizer, and emptying the fuel tank for storage or maintenance.
- Air Filter: Procedures for cleaning the foam pre-cleaner and replacing the paper air filter.
- Blade Maintenance: Instructions for inspecting, sharpening, balancing, removing, and installing the cutting blade.
- Blade Brake Clutch (BBC) Shield: Cleaning procedure for the BBC shield.
- Belt Cover: Cleaning procedure for the area under the belt cover.
- Pivot Arms: Lubrication instructions using #2 multi-purpose lithium base grease.
- Self-Propel Drive Adjustment: Steps to adjust the wheel drive control knob if the mower is not self-propelling correctly or creeps forward.
- Spark Plug: Instructions for checking, setting the gap, and replacing the spark plug.
- Oil Filter: Procedure for changing the oil filter.
- Gear Case: Lubrication instructions for the gear case.
- Blade Brake Cable: Adjustment procedure for the blade brake cable.
- Wheels: Instructions for removing and assembling the wheels.
- Troubleshooting Guide: A table listing common problems, possible causes, and corrective actions for issues like the engine not starting, starting hard/losing power, running rough, excessive vibration, uneven cutting, discharge chute plugs, and self-propel drive malfunction.
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