Toro SR4 Super Recycler Parts Manual

The Toro SR4 Super Recycler is a high-performance walk-behind lawn mower featuring a 4-cycle Briggs & Stratton engine, Super Recycler cutting system, Personal Pace self-propelled drive system, electric start option, durable steel deck, and advanced mulching capabilities. This manual provides comprehensive parts identification, diagrams, ordering information, maintenance schedules, and safety guidelines for proper operation and upkeep of your mower.

1. Parts Overview & Diagrams 2. Engine Components 3. Cutting System Parts 4. Drive & Chassis Components 5. Controls & Cables 6. Maintenance Schedule 7. Safety Parts & Features 8. Troubleshooting Parts Issues 9. Parts Ordering Information 10. Warranty & Service

Parts Overview & Diagrams

Key assemblies: Engine, Deck, Handle, Wheels, Drive System, Cutting Blade, Bag/Mulch Kit.

Assembly	Part Number Prefix	Description
Deck Assembly	108-XXXX	Steel cutting deck with mounting points
Engine (B&S)	BS-XXXX	4-cycle engine with recoil/electric start
Blade & Adapter	108-XXXX	High-lift mulching blade and spindle
Drive System	108-XXXX	Personal Pace transmission and cables
Wheels (Rear)	108-XXXX	8-inch rear wheels with bearings
Handle	108-XXXX	Folding handle with control brackets
Bagging Kit	108-XXXX	Optional grass collection system
Mulch Plug	108-XXXX	Converts to mulching mode
Safety Key	108-XXXX	Electric start safety interlock
Skid Shoes	108-XXXX	Deck height adjustment wear parts

Engine Components

Briggs & Stratton 4-cycle engine parts list and maintenance items.

Air Filter: Replace annually or every 25 hours.
Spark Plug: Gap 0.030"; replace every 100 hours.
Oil Filter/Drain Plug: For models with oil filter.
Carburetor & Gaskets: Includes fuel lines and primer bulb.
Recoil Starter Assembly: Rope, pulley, spring.
Electric Starter Motor: For electric start models.
Flywheel & Key: Ignition timing component.

WARNING! Disconnect spark plug before servicing engine. Use correct oil type (SAE 30).

Cutting System Parts

Super Recycler cutting deck, blade, and spindle components.

Blade: High-lift mulching blade (part # 108-XXXX). Sharpening recommended every 25 hours.
Blade Adapter/Bolt: Retaining hardware (torque to 45 ft-lbs).
Spindle Assembly: Includes bearings and housing.
Deck Belt: Drive belt to engine pulley.
Deck Wash Port Plug: For cleaning under deck.
Baffles: Internal deck baffles for mulching.

CAUTION! Always balance blade after sharpening. Wear gloves when handling blades.

Drive & Chassis Components

Personal Pace Transmission: Variable speed drive system.
Drive Cable: Connects handle to transmission.
Drive Belt: Links engine to transmission.
Wheel Assemblies: Front 7-inch, rear 8-inch with axle and bearings.
Axles & Bushings: For wheel mounting.
Deck Wheels/Skid Shoes: Height adjustment and deck protection.
Handle Knobs & Hardware: Folding mechanism and grip parts.

Controls & Cables

Handle-mounted controls and cable systems.

Control Lever: Personal Pace speed control. Drive Cable: Part # 108-XXXX. Blade Control Cable: Engages/disengages blade. Height Adjust Lever: Single-point height adjustment. Starter Switch: For electric start models. Safety Key: Electric start interlock. Bail Handle: Deadman control for blade and drive.

Adjustment: Cables may require periodic adjustment for proper engagement. Refer to service manual for procedure.

Maintenance Schedule

Regular maintenance parts replacement guide.

Before each use: Check blade condition, hardware tightness.
Every 25 hours: Sharpen/replace blade, check deck for damage.
Every 50 hours: Replace air filter, check drive belt.
Every 100 hours: Replace spark plug, change oil, inspect cables.
Seasonal: Clean deck, lubricate wheels/cables, store properly.

Tip: Use only genuine Toro parts for optimal performance and warranty.

Safety Parts & Features

Critical safety components that must be maintained.

Blade Control Bail: Must return to stop position automatically.
Safety Key: Prevents unauthorized starting.
Deflector Shield: Must be in place during operation.
Discharge Chute: Keep clear of debris.
Wheel Guards/Deck Shields: Protect from thrown objects.

WARNING! Never operate with damaged or missing safety parts. Replace immediately.

Troubleshooting Parts Issues

Common parts-related problems and solutions.

Symptom	Possible Part Issue	Corrective Action
Poor cut quality	Dull/bent blade	Sharpen or replace blade; check balance.
Vibration	Unbalanced blade, bent spindle	Balance blade; inspect spindle for damage.
Drive not engaging	Worn drive belt, cable adjustment	Replace belt; adjust drive cable.
Engine won't start	Bad spark plug, clogged filter	Replace spark plug; clean/replace air filter.
Oil leak	Damaged gasket, loose drain plug	Replace gasket; tighten plug to spec.

Note: For complex repairs, consult authorized Toro service dealer.

Parts Ordering Information

How to identify and order genuine Toro parts.

Locate model and serial number on mower decal (format: 20000-XXXX).
Use exploded diagrams in this manual to identify part numbers.
Contact Toro dealer with model/serial and part number.
Order online at www.toro.com using part lookup tool.

CAUTION! Using non-genuine parts may void warranty and affect performance.

Warranty & Service

Toro limited warranty: 3-year residential, 90-day commercial. Warranty covers defects in materials/workmanship. Does not cover normal wear, abuse, or non-genuine parts. For service, contact authorized Toro dealer or call 1-888-384-9939. Visit www.toro.com for manuals, parts, and support.