EasyManua.ls Logo

Briggs & Stratton 276535 User Manual

Briggs & Stratton 276535
38 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
2-Cycle Snow Engine
0
2-CYCLE SNOW ENGINE
REPAIR MANUAL
MANUAL NUMBER: 276535

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Briggs & Stratton 276535 and is the answer not in the manual?

Briggs & Stratton 276535 Specifications

General IconGeneral
Fuel TypeGasoline
Starting SystemRecoil
CarburetorFloat Feed
Governor SystemMechanical
Lubrication SystemSplash
Air CleanerDual Element
Shaft OrientationHorizontal
RotationCounterclockwise

Summary

Safety Information

General Safety Guidelines

Briggs & Stratton engine usage guidelines and warnings regarding unauthorized applications and competitive events.

Understanding Safety Symbols

Explanation of DANGER, WARNING, CAUTION signal words and the safety alert symbol for hazard identification.

Key Safety Precautions

Essential safety practices including reading manual, eye protection, preventing accidental starting, and engine maintenance.

Hazard Symbols and Meanings

Symbol Definitions

Visual representations of hazards such as explosion, fire, shock, chemical burns, and entanglement.

Gasoline and Flammable Hazards

Warnings about gasoline's flammability, explosion risks, and safe fueling procedures.

Unintentional Sparking Hazards

Hazards associated with unintentional sparking, leading to fire, shock, or entanglement.

Carbon Monoxide Hazard

Dangers of carbon monoxide gas from engine exhaust, requiring outdoor operation.

Rotating Parts and Impact Hazards

Rotating Parts Safety

Dangers of rotating parts causing entanglement, amputation, or severe lacerations, and safe operation guidelines.

Equipment Impact Hazard Prevention

Risks of broken bones and ensuring external equipment components are securely attached before starting.

General Information

Two-Cycle Engine Theory

Explanation of the two-cycle engine's crankcase induction, porting, and combustion process.

Ignition Coil Operation

Breakerless Ignition System

Description of the breakerless ignition system using electronic components instead of mechanical points.

Starter Systems and Maintenance

Rewind Starter Operation

Explanation of the rewind starter mechanism involving retainer, friction disc, and engagement dogs.

Electric Start System

Overview of the 120VDC electric start system, including pinion gear engagement.

Maintenance Schedule

Recommended maintenance tasks for 25 and 50-hour intervals, including spark plug and exhaust port checks.

Spark Plug and Exhaust System Service

Spark Plug Replacement Procedure

Procedure for replacing the spark plug, including gap setting and torque specifications.

Exhaust System Cleaning Procedure

Steps for cleaning the exhaust system, including muffler removal and exhaust port carbon scraping.

Troubleshooting Introduction

General Troubleshooting Information

Categorization of common engine operation complaints like no start, hard starting, and vibration.

Systematic Check Approach

Systematic troubleshooting approach for ignition, carburetion, and compression issues.

Ignition System Troubleshooting

Procedure for checking the ignition system's spark output using a tester.

Engine Misfires, Carburetion, and Compression

Engine Misfire and Carburetion Checks

Troubleshooting engine misfires and checking carburetion for wet or dry spark plugs and fuel delivery.

Compression Testing Procedure

Procedure for checking engine compression using a tester and identifying potential causes for low compression.

Equipment Affecting Operation

Identifying how powered equipment issues can mimic engine malfunctions, requiring equipment checks.

Starting, Vibration, and Power Issues

Starting and Vibration Diagnosis

Diagnosing hard starting, kickback, or no-start conditions and causes of engine vibration.

Power Loss and Starter Motor Issues

Troubleshooting power loss and diagnosing starter motor failures to turn the engine.

Engine Disassembly Procedures

Shroud Removal Steps

Instructions for removing the engine shroud, including disconnecting the spark plug wire and removing fasteners.

Carburetor Removal Steps

Procedure for removing the carburetor, including fuel line disconnection and primer tube removal.

Flywheel, Starter, and Muffler Removal

Flywheel Removal Technique

Steps to remove the flywheel, including nut removal, and using a mallet for separation.

Optional 120V Starter Removal

Procedure for removing the optional 120V electric starter assembly.

Muffler Removal Steps

Instructions for removing the muffler by unscrewing mounting bolts and discarding the gasket.

Ignition Module and Crankcase Disassembly

Ignition Module Removal Steps

Procedure for removing the ignition module by unscrewing the mounting bolts.

Crankcase and Crankshaft Disassembly

Steps for separating crankcase halves, removing crankshaft assembly, and discarding oil seals.

Piston and Rod Assembly Removal

Removing the piston and rod assembly, including connecting rod cap and wrist pin.

Cylinder Head Removal

Cylinder Head Fastener Removal

Procedure for removing the cylinder head, including loosening studs and nuts and discarding the gasket.

Engine Overhaul Inspection

Flywheel and Key Inspection

Checking the flywheel key and keyway for damage, shearing, or distortion.

Bearing and Crankcase Inspection

Inspecting ball bearings for wear and the crankcase for cracks and cleaning surfaces.

Cylinder Bore Measurement

Measuring the cylinder bore for wear using gauges and calipers.

Piston and Connecting Rod Overhaul

Piston Ring Installation and Checks

Procedure for installing piston rings, checking end gap, side clearance, and piston wear.

Piston Pin and Connecting Rod Inspection

Checking the piston pin diameter and inspecting the connecting rod for wear or damage.

Carburetor Disassembly Steps

Throttle and Choke Plate Removal

Procedure for disassembling the carburetor, including throttle plate, choke plate, and bowl removal.

Carburetor Jet and Valve Servicing

Pilot Jet and Needle Valve Removal

Steps for removing the pilot jet, fuel filter screen, float hinge pin, and needle valve assembly.

Carburetor Cleaning and Assembly

Carburetor Cleaning and Inspection

Steps for cleaning and inspecting all carburetor parts, flushing passages, and drying.

Carburetor Assembly Procedure

Procedure for assembling the carburetor, including installing jets, nozzle, and pilot jet.

Carburetor Float Assembly and Testing

Float Assembly and Height Adjustment

Installing the brass inlet seat, needle valve, float assembly, and adjusting float height.

Carburetor Shaft and Plate Installation

Throttle and Choke Shaft Installation

Installing the throttle shaft, throttle plate, choke shaft, and choke plate into the carburetor.

Starter Replacement Procedures

Rewind Starter Replacement

Procedure for replacing the rewind starter assembly and its rope.

Optional Electric Starter Replacement

Steps for removing and installing the optional electric starter motor and associated switch.

Engine Assembly: Piston and Rings

Piston and Connecting Rod Assembly

Lubricating and assembling the piston pin into the piston and connecting rod.

Piston Ring Installation

Instructions for installing piston rings onto the piston, noting model-specific configurations.

Piston and Cylinder Installation

Piston and Connecting Rod Installation

Lubricating and installing the piston and connecting rod assembly into the cylinder bore.

Connecting Rod and Crankshaft Assembly

Connecting Rod Bearing Installation

Installing connecting rod and rod cap liners, ensuring proper seating and alignment.

Crankshaft and Connecting Rod Installation

Placing the crankshaft into the cylinder and assembling the connecting rod to the crankpin.

Crankshaft Fastening and Oil Seals

Connecting Rod Screw Torque

Torqueing the connecting rod screws to the specified value to secure the assembly.

Oil Seal Installation Procedure

Procedure for installing oil seals onto the crankshaft, ensuring proper centering and alignment.

Crankcase, Cylinder Head, and Ignition Assembly

Crankcase Cover Assembly Steps

Assembling the crankcase cover using appropriate sealant and torqueing screws.

Cylinder Head Installation Steps

Installing the cylinder head with a new gasket and torqueing head bolts.

Ignition Coil and Flywheel Installation

Assembling the flywheel key, ignition coil, and flywheel, ensuring proper alignment and torque.

Air Vane and Governor Installation

Governor Bracket and Air Vane Installation

Installing the air vane governor bracket, link, and air vane, checking for free movement.

Manifold, Carburetor, and Governor Checks

Intake Manifold and Carburetor Installation

Installing the intake manifold and carburetor with new gaskets and torqueing fasteners.

Governor Operation Check Procedure

Checking governor operation by measuring air vane to cylinder distance and adjusting linkage.

Muffler and Blower Housing Installation

Muffler Installation Steps

Installing the muffler with a new gasket and torqueing mounting screws.

Blower Housing Installation Steps

Installing the blower housing, ensuring proper routing of ground wire and torqueing fasteners.

Final Adjustments and Governor Settings

Governor Adjustment Procedure

Adjusting the governor by bending the bracket where the governor spring is attached.

Technical Specifications and Torque Values

Fastener Torque Specifications

List of fasteners with their required wrench/socket size and torque values.

Common Engine Specifications

Key engine specifications including bore, stroke, displacement, and governed top speed.

Standard and Reject Dimensions

Component Dimension Standards

Detailed standard and reject dimensions for cylinder bore, crankshaft, piston, and piston rings.

Related product manuals