Briggs & Stratton 500 Series Maintenance Manual

Petrol lawnmowers 420 hp; 460 hp; 460 pd; 460 r pd; pwr 400; sp530; hp470; sp470; t4204; 4204s; t4604s; gl480sp; t4604rs; t5105s;

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Operator's manual (52 pages)

Operator's manual (32 pages)

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Grham

January 27, 2025

if a petrol stop/flow valve is fitted where is it located

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February 17, 2025

What is the service kit for the Viking MT 5097.1 C ride on mower

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April 19, 2025

How do I replace the priming button? Many thanks!

Summary of Contents for Briggs & Stratton 500 Series

Page 1: Table Of Contents
Engine Model: Briggs & Stratton Classic, 450 and 500 Series SELF-HELP PROBLEM SOLVING and MAINTENANCE PETROL LAWNMOWERS The Briggs & Stratton Classic, 450 and 500 Series engines are fitted to many mowers including the following recent products: • • • 420 HP...
Page 2: Safety Precautions
6. Never put your hands, feet or any implement under the cutter deck or inside the rear discharge chute. The cutter blade will continue to rotate for some time after Page 2 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 3 16. Do not put your hands or feet near or under rotating parts. Keep clear of the Page 3 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 4 Parts that are not of the same quality can damage the equipment and impair your safety. TRANSPORTATION AND HANDLING: 1. Whenever the machine is to be handled, raised, transported or tilted you must: • Wear strong working gloves; Page 4 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 5 2. During transport, fasten the machine securely with ropes or chains. Page 5 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 6: Fuel, Oil, Air Filter And Spark Plug Requirements
SPARK PLUG – the following sparkplugs are the correct specification: Champion: LM19 or QJ19LM The spark plug gap should be 0.76mm or 0.03” ( 1000 Page 6 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 7: Routine Engine Maintenance
Repeat this until the old fuel is removed. Arrange safe disposal of fuel-soaked rags. Please dispose of old fuel and used engine oil in a manner that is compatible with the environment Page 7 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 8 Turn the drain bolt anti-clockwise to release. Please dispose of old fuel and used engine oil in a manner that is compatible with the environment Page 8 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 9 As a guide, the information below has been copied from the engine manufacturer’s user manual: Classic and Sprint engines: NB: Please refer to the engine manufacturer’s manual for specific information on all engines. 450 Series Engines: Page 9 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 10: Starting The Engine
Stale fuel or build-ups in fuel Drain old fuel, re-fill tank with fresh fuel (see • • OPC Cable has stretched Adjust or replace (see C) Page 10 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 11 NOTE: If there is no spark, change the plug. If there is still no spark refer to a service dealer because the coil may be faulty. Page 11 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 12 Check the level of fuel in the tank and top up if necessary. Then again check to see if the jet of fuel shoots across the ventury. If it doesn’t, carry out the following instructions: Page 12 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 13 Please dispose of old fuel and used engine oil in a manner that is compatible with the environment Page 13 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 14 Engine Model: Briggs & Stratton Classic, 450 and 500 Series Adjusting the Operator Presence Control cable (450 and 500 Series engines only): With time the OPC cable may stretch and not fully engage switch which allows the electrical feed to the spark plug. This is the cable which runs down from the top bar on the main handle.
Page 15: Engine Starts And Smokes Heavily
Now follow the instructions in B below. Please dispose of old fuel and used engine oil in a manner that is compatible with the environment Page 15 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 16 Droplets of oil may come from the exhaust onto the deck as the oil is cleared from the cylinder. Simply wipe these away with a rag. The correct way to tip your mower is BACKWARDS. Page 16 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 17: Engine Cutting Out Or Running Unevenly
The task has 4 separate stages: 1. Remove the carburettor and fuel tank. 2. Separate the carburettor and fuel tank. 3. Replace the diaphragm and gasket. 4. Re-assembly. Page 17 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 18 2. Lower the carburettor assembly down onto the gasket and diaphragm. 3. Replace the 5 screws and tighten them evenly. RE-ASSEMBLY Reassemble the tank assembly in the reverse manner to the disassembly described above. Page 18 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 19 4. Prise the retainer out and remove the primer bulb. 5. Replace the primer button by reversing the above instructions, and then reassemble. IMPORTANT: Do not stretch, bend or compress the primer spring. Page 19 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 20: Pull Cord Not Pulling Or Snatching Back
Droplets of oil may come from the exhaust onto the deck as the oil is cleared from the cylinder. Simply wipe these away with a cloth. For best practice, only to tip your mower BACKWARDS. Page 20 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 21 It is wise to mark the blade before removing it so that the blade can be replaced the correct way up. Page 21 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 22: Cutting And Collecting Grass, Vibration
NOTE: Combination mowers use a mulching plug so they can then be used also as a mulching mower. Page 22 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 23 PROBLEMS WITH THE BLADE OR BLADE MOUNTING Before checking the blade, REMOVE the H.T. lead (1 in the diagram). and ONLY TIP THE MOWER BACKWARDS. Page 23 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 24 Check that all 3 bolts securing the engine are in place and tight. Page 24 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 25 Clean away any grass clippings which have accumulated on the underside. 6. Once cleaned, lower the machine, re-fit the HT lead (spark plug cap) and restart engine. Page 25 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 26: Loss Of Drive On Self-Propelled Mowers
If the above steps do not return the tension to the cable and restore the drive, the cause of the problem may be the belt has come off the Page 26 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 27 WARNING: Make sure you have disconnected the HT lead from the spark plug (it is a simple push fit) before you undertake ANY of the work below. Page 27 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 28 9. On the back axle there is a black/grey box www.servicelink.org.uk (the transmission unit) and on the uppermost face of this is a pulley – wind the belt onto this Page 28 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 29 Find your local Whenever ordering spare parts ServiceLink centre at ALWAYS quote the model number of www.servicelink.org.uk your machine to the dealer. Page 29 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 30: Transportation And Handling
The handles may be folded to ease storage and transportation. It is important to take care not to trap the operating cables when collapsing the handles. Page 30 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 31: Maintenance And Storage
This should always be done outdoors. To empty the fuel from the engine, see section 4 Starting the engine, sub-section B. Page 31 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...
Page 32: Guarantee Spare Parts, Repairs
Our Helpline service, telephone 0845 600 2912 (Monday to Saturday 9am – 5pm, and Sunday 10am – 4pm). Your local ServiceLink centre can Repairs be found at www.servicelink.org.uk Page 32 of 32 B&S Classic, 450 and 500 Series Selfhelp Guide 2011, Issue 1.0...

This manual is also suitable for:

450 series