Craftsman T110 Parts Manual

The Craftsman T110 is a 42-inch riding lawn mower featuring a 19.5 HP Briggs & Stratton engine, 6-speed manual transmission, electric start, 2.5-gallon fuel tank, 3-in-1 deck (mulch, bag, side discharge), adjustable cutting height (1.5-4 inches), and a comfortable high-back seat. This manual provides detailed parts identification, replacement procedures, maintenance schedules, and safety information to ensure proper operation and longevity of your equipment. Below are key sections for parts overview, maintenance, troubleshooting, and ordering.

1. Parts Overview 2. Engine Components 3. Deck Assembly 4. Drive System 5. Electrical System 6. Maintenance Schedule 7. Replacement Procedures 8. Safety Precautions 9. Troubleshooting 10. Parts Ordering

Parts Overview

Key components: Engine assembly, cutting deck, transmission, steering system, electrical components, seat, and frame.

ComponentPart NumberDescription
Engine AssemblyCMXGZAM73100119.5 HP Briggs & Stratton engine with electric start
Cutting DeckCMXGZAM73100242-inch 3-in-1 deck with mulching kit
TransmissionCMXGZAM7310036-speed manual gearbox
Drive BeltCMXGZAM731004V-belt for deck drive
Blade SetCMXGZAM731005Set of 3 high-lift blades
Air FilterCMXGZAM731006Paper element air filter
Spark PlugCMXGZAM731007Champion RC12YC
Fuel FilterCMXGZAM731008In-line fuel filter
BatteryCMXGZAM73100912V 230CCA maintenance-free
SeatCMXGZAM731010High-back padded seat

Engine Components

19.5 HP Briggs & Stratton engine parts and maintenance requirements.

  1. Air filter: Replace every 50 hours or annually.
  2. Spark plug: Replace every 100 hours or seasonally.
  3. Oil filter: Replace with every oil change (50 hours).
  4. Fuel system: Check fuel lines and filter every 25 hours.
  5. Cooling fins: Clean annually to prevent overheating.

WARNING! Always disconnect spark plug wire before performing engine maintenance to prevent accidental starting.

Deck Assembly

42-inch cutting deck with mulching, bagging, and side discharge capabilities.

  1. Deck shell: Steel construction with anti-scalp rollers.
  2. Blade spindle assemblies: Three spindles with sealed bearings.
  3. Deck belt: V-belt connecting engine pulley to deck pulleys.
  4. Height adjustment: Lever-operated with 8 positions (1.5-4 inches).
  5. Discharge chute: Removable for bagging or mulching conversion.

CAUTION! Always engage parking brake and remove key before working under deck.

Drive System

Electrical System

12V electrical system with key start, safety interlock system, and lighting.

Components: Battery (12V 230CCA), starter motor, alternator, ignition switch, safety switches (seat, brake, PTO), headlights, fuses (20A main, 10A accessory).

Wiring: Color-coded harness with weather-resistant connectors. Charging: Maintain battery with trickle charger during storage. Fuse replacement: Locate fuse box under dash; replace with identical rating.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

  1. Before each use: Check tire pressure, fluid levels, and for loose parts.
  2. Every 8 hours: Check engine oil level; clean deck underside.
  3. Every 50 hours: Change engine oil and filter; replace air filter.
  4. Every 100 hours: Replace spark plug; check drive belt tension.
  5. Annually: Grease fittings; check battery; sharpen/replace blades.

Tip: Keep maintenance log to track service intervals.

Replacement Procedures

Step-by-step guides for common part replacements.

  1. Blade replacement: Block deck, remove bolt (clockwise threads), install new blade with cutting edge toward ground.
  2. Drive belt: Release tensioner, remove old belt, route new belt per diagram, check tension.
  3. Air filter: Unclip cover, remove old filter, clean housing, install new filter.
  4. Spark plug: Disconnect wire, clean area, remove with 13/16" socket, gap to 0.030", install hand-tight then 1/4 turn.
  5. Battery: Disconnect negative first, then positive; remove hold-down; reverse for installation.

WARNING! Use proper tools and torque specifications to avoid damage.

Safety Precautions

Always follow safety guidelines to prevent injury.

Operation: Clear area of debris before mowing; wear eye protection; no riders. Maintenance: Disconnect spark plug; allow engine to cool; use jack stands. Storage: Store with empty fuel tank or use stabilizer; remove battery for winter.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startDead battery, bad spark plug, empty fuelCharge battery; check spark plug; add fuel; check safety switches.
Poor cutting qualityDull blades, low engine RPM, clogged deckSharpen/replace blades; check throttle setting; clean deck.
VibrationUnbalanced blade, loose spindle, damaged beltBalance blade; tighten spindle bolts; inspect belt.
Loss of powerClogged air filter, old fuel, dragging brakeReplace air filter; drain old fuel; adjust brake.
Transmission issuesLow fluid, worn gears, improper adjustmentCheck fluid level; inspect gears; adjust linkage.

Reset: Disconnect battery for 30 minutes to reset electrical system if needed.

Service: 1-888-331-4569; www.craftsman.com

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