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Snapper 7800979-00 User Manual

Snapper 7800979-00
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Snapper 7800979-00 Specifications

General IconGeneral
EngineBriggs & Stratton
Deck MaterialSteel
Grass CollectionRear Bag
Cutting Width21 inches
Cutting Height1.25 - 3.75 in
Start TypePull Cord

Summary

Safety Symbol Definitions

DANGER Symbol

Indicates a hazardous situation that will result in death or serious injury.

WARNING Symbol

Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

CAUTION Symbol

Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

NOTICE Symbol

Indicates a situation that can cause damage to the equipment, personal property, or environment.

Operating Safety Guidelines

Children Safety

Keep children away from the operating area as they are attracted to the unit.

Slope Operation Safety

Operate safely on slopes, avoiding steep inclines and ensuring adequate footing.

General Safety Messages

Thrown Objects Hazard

Mower blade can throw debris; keep area clear and ensure safety devices are in place.

Poisonous Gas Hazard

Engine exhaust contains carbon monoxide; operate only outdoors.

Debris Accumulation Hazard

Grass and debris accumulation can cause fire; clean regularly.

Preparation and Safe Operation

Manual and Controls Review

Understand instructions, warnings, controls, and proper use before starting.

Fuel Handling Safety

Handle fuel with care; it's flammable and vapors are explosive. Use approved containers.

General Operation Safety

Keep hands/feet away from rotating parts, clear discharge area, stop engine when crossing hazards.

Operation Safety Practices

Safe Operation Practices

Always stay behind handle, do not leave machine running, disconnect spark plug before servicing.

General Maintenance Guidelines

Keep mower clean, check bolts, ensure adequate ventilation, service engine when stopped.

Features and Controls

Drive Control System

Squeeze drive control against handle to engage wheel drive.

Blade Control (OPC)

Squeeze blade control to start engine/blade; release to stop.

Ground Speed Control

Move control toward Fast/Slow to adjust ground speed.

Control Identification and Pre-Start

Control Labels

Labels for Mulching Cover, Height Latch, Oil Cap, and Start Handle.

Pre-Start Checks

Check guards, covers, blade control, drive control, and ground speed control.

Fuel and Oil Recommendations

Fuel Requirements

Use clean, fresh, unleaded gasoline; 10% ethanol is acceptable. Avoid E15/E85.

High Altitude Fueling

For altitudes over 5,000 ft, use 85 octane; carbureted engines may need adjustment.

Oil Recommendations

Chart showing recommended oil viscosity based on outdoor temperature.

Mower Operation Procedures

Starting the Mower

Use Ready Start system; move speed control, squeeze blade control, start engine.

Propelling the Mower

Squeeze wheel drive control to move forward; adjust speed with ground speed control.

Stopping the Mower

Release wheel drive control to stop motion; release blade control to stop engine.

Height Adjustments

Handle Height Adjustment

Loosen nuts, move handle, tighten nuts to adjust height.

Cutting Height Adjustment

Pull latch, move to desired height, set all wheels to same height.

Mulching and Deflector Installation

Mulching Operation

Cut 1/3 of blade length, recycle dry grass; adjust wheel height for dense grass.

Removing Mulching Cover

Remove knob nuts and washers to detach the mulching cover.

Installing Discharge Deflector

Install deflector over studs, aligning holes and slots.

Accessory Installation

Installing Grass Bag Adapter

Install adapter over studs, aligning holes and slots, secure with nuts.

Installing Mulching Plug

Install plug into bag adapter after installing adapter; secure with grass bag.

Grass Bag and Battery Charging

Installing Grass Bag

Slide bag connector over adapter flange, attach hooks to handle bar.

Charging the Battery

Charge battery after use or storage; connect charger for 16-24 hours.

Maintenance Schedule

Mower Maintenance Schedule

Schedule for checking interlock system, debris, hardware, lubrication, blades, belts, battery.

Engine Maintenance Schedule

Schedule for oil changes, filter cleaning/replacement, spark plug, muffler, spark arrester.

Engine Maintenance Procedures

Changing Engine Oil

Drain fuel, tip mower, drain oil from fill tube into container.

Changing Oil Filter

Drain oil, remove old filter, lubricate new gasket, install and tighten.

Servicing Air Filter

Clean or replace air filter and pre-cleaner; wash pre-cleaner in detergent and water.

Air Filter Service

Foam Air Filter Service

Wash foam element in detergent/water, saturate with oil, squeeze excess.

Paper Air Filter Service

Loosen fastener, remove cover, remove filter, clean or replace.

Mower Cleaning, Storage, and Safety System Check

Cleaning Mower Debris

Clean deck and engine area, check components for wear.

Storage Procedure

Disconnect spark plug, drain fuel, run engine dry, store in dry area.

Safety Interlock System Test

Start mower, release blade control; engine must stop within 3 seconds.

Transmission Grease Check

Transmission Grease Level Check

Remove fill plug, check for grease, add Snapper "00" grease if needed.

Blade and Belt Checks

Mower Blade Inspection

Check torque of blade screw, inspect blade for sharpness, wear, and damage.

Blade Wear Limits

Inspect blade for signs of wear or damage; replace if worn or cracked.

Drive Belt Checks

Check engine and transmission belts for wear or damage. Replace if worn.

Blade Wear and Sharpening

Ninja Blade Wear Limit

Inspect Ninja blade for wear, cracks, or notches; replace if damaged.

Blade Sharpening Procedure

Sharpen blade at 22-28 degrees; check for balance and reinstall.

Drive Control and Disc Service

Wheel Drive Control Adjustment

Adjust wheel drive control for proper clearance between spring hook and cable eye.

Drive System Troubleshooting

Check for grease on discs, broken spring, or worn rubber for slippage.

Drive Disc Cleaning and Adjustment

Cleaning Drive Discs

Wipe discs with a clean cloth or solvent to remove oil/grease causing slippage.

Drive Spring Service

Reconnect loose drive spring; replace if broken.

Driven Disc Adjustment

Move speed control to FAST, adjust driven disc assembly position.

Driven Disc Adjustment and Replacement

Final Driven Disc Adjustment

Realign transfer rod, recheck measurement, tighten nut.

Driven Disc Replacement

Remove spring, snap rings, driven disc; install new disc and secure.

Disc Bearing Replacement

Driven Disc Bearing Replacement

Drive out old bearing, install new bearing, secure with screws.

Hex Shaft Bearing Replacement

Remove lock nut, holder, O-ring, bearing; install new bearing and components.

Belt Service

Engine Drive Belt Replacement

Empty fuel tank, note belt routing, remove old belt, install new belt.

Transmission Poly-V Belt Replacement

Transmission Poly-V Belt Replacement

Remove driven disc, note routing, place new belt over pulleys, twist and pull into groove.

Troubleshooting

Engine Start and Running Issues

Covers engine not starting, stalling, losing power, and vibration.

Mower Operation Issues

Addresses movement, traction, cutting, discharge problems, and oil leaks.

Warranties

Briggs & Stratton Warranty Policy

Outlines warranty terms, coverage, and exclusions for equipment and engines.

About Your Warranty

Explains warranty service availability, coverage, and exclusions like improper use or maintenance.

Emissions Control Warranty Statement

Emissions Control Warranty Provisions

Details warranted emissions parts, coverage length, and exclusions.

Owner's Warranty Responsibilities

Owner's duty for maintenance, presenting product, and avoiding abuse.

Emissions Control Warranty Details

Warranty Exclusions and Consequential Coverage

Excludes add-on parts, abuse, neglect; covers consequential failures.

Emissions Durability Period Explanation

Explains hours of operation for emissions compliance based on engine displacement.

Emissions Control Warranty Parts

Warranted Emissions Parts List

Lists specific engine components covered under the emissions warranty.

Emissions Compliance Period Categories

Emissions Compliance Period Categories

Details categories (C, B, A) for emissions compliance hours based on displacement.

Slope Guide

Slope Operation Safety

Mow across slopes, not up/down; do not mow slopes over 10 degrees.

Slope Angle Comparison

Fold page to create 10-degree angle guide for comparing slopes.

Specifications

Mower Specifications

Details deck size, cut height, transmission type, ground speed, blade torque.

Engine Specifications

Details gross power, displacement, fuel/oil capacity, spark plug gap/torque.

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