Craftsman T110 Lawn Mower Parts Manual

The Craftsman T110 is a 42-inch riding lawn tractor designed for residential use, featuring a 19.5 HP Briggs & Stratton engine, 6-speed manual transmission, and a durable steel deck. This manual provides comprehensive information on parts identification, replacement procedures, maintenance schedules, and safety guidelines to ensure proper operation and longevity of your mower. Below are key sections covering parts diagrams, specifications, installation, maintenance, and troubleshooting.

1. Parts Overview & Diagrams 2. Specifications 3. Safety Precautions 4. Engine Components 5. Deck & Cutting System 6. Drive & Transmission 7. Electrical System 8. Maintenance Schedule 9. Replacement Procedures 10. Troubleshooting 11. Warranty & Support

Parts Overview & Diagrams

Key assemblies: Engine, Mower Deck, Transmission, Steering, Electrical, and Controls.

Assembly	Key Parts
Engine (Briggs & Stratton)	Air filter, Spark plug, Oil filter, Fuel pump, Carburetor
Mower Deck (42-inch)	Blades (3), Spindles, Belt, Deck shell, Mandrels
Transmission (6-speed)	Shift lever, Gearbox, Drive belt, Pulleys
Steering & Controls	Steering wheel, Tie rods, Brake pedal, Clutch/brake assembly
Electrical System	Battery (12V), Starter, Ignition switch, Safety switches
Frame & Body	Seat, Fenders, Hood, Footrests

Specifications

Model: Craftsman T110
Engine: 19.5 HP Briggs & Stratton, single-cylinder, OHV
Cutting Width: 42 inches
Transmission: 6-speed manual shift-on-the-go
Deck Material: 14-gauge steel
Fuel Capacity: 2.5 gallons
Battery: 12V, 280 CCA
Tire Size (Front): 15x6.00-6
Tire Size (Rear): 20x8.00-8
Weight: Approx. 450 lbs

Safety Precautions

Always follow safety guidelines to prevent injury or damage.

Disconnect spark plug wire before performing any maintenance.
Allow engine to cool before refueling or servicing.
Wear safety glasses and gloves when handling parts.
Ensure mower is on level ground and parking brake is engaged.
Keep hands and feet away from moving parts, especially blades.

WARNING! Never operate mower without all safety guards in place. Keep children and pets away during operation or maintenance.

Engine Components

Parts list for Briggs & Stratton 19.5 HP engine (Model 31P777).

Part Number	Description	Qty
694356	Air Filter Element	1
492932S	Spark Plug (Champion RC12YC)	1
842021	Oil Filter	1
694107	Fuel Pump Assembly	1
694592	Carburetor Kit	1
691188	Starter Motor	1

Note: Use genuine Craftsman parts for optimal performance and warranty compliance.

Deck & Cutting System

42-inch mower deck parts and belt routing diagram.

Blades: Part # 532401472 (set of 3). Replace if bent or dull.
Spindle Assembly: Part # 532186176. Includes bearings and housing.
Deck Belt: Part # 144959 (½" x 95"). Check for wear and proper tension.
Mandrel: Part # 532186174. Connects blade to spindle.
Deck Shell: Part # 532186172. Inspect for cracks or rust.

Tip: Lubricate spindle bearings every 25 hours of operation.

Drive & Transmission

6-speed manual transmission components.

Shift Lever Assembly: Part # 532186180
Drive Belt: Part # 144958 (½" x 78")
Idler Pulley: Part # 532186178
Brake Cable: Part # 532186182
Clutch Assembly: Part # 532186184

CAUTION! Ensure transmission is in neutral before starting engine. Adjust clutch free play as per manual.

Electrical System

12V electrical system parts and wiring diagram.

Component	Part Number	Function
Battery	U1-280	12V, 280 CCA
Starter Solenoid	532186188	Engages starter motor
Ignition Switch	532186190	Controls power and start
Safety Switch (Seat)	532186192	Stops engine if operator leaves seat
Headlight Assembly	532186194	Front illumination

Maintenance Schedule

Regular maintenance ensures longevity and performance.

Interval	Task	Parts Needed
Every 8 hours	Check tire pressure, blade condition	Air gauge
Every 25 hours	Change engine oil, lubricate spindles	Oil filter, SAE 30 oil
Every 50 hours	Replace air filter, check belts	Air filter element
Every 100 hours	Replace spark plug, inspect battery	Spark plug, battery tester
Seasonal	Sharpen/replace blades, deck cleaning	Blade set, degreaser

Replacement Procedures

Step-by-step for common part replacements.

Blade Replacement: Disconnect spark plug. Raise deck. Remove blade bolt (clockwise threads). Install new blade with cutting edge towards ground. Torque to 40-50 ft-lbs.
Deck Belt Replacement: Release tension on idler pulley. Remove old belt. Route new belt per diagram. Ensure proper alignment.
Air Filter Replacement: Open air filter cover. Remove old element. Clean housing. Insert new filter. Secure cover.
Spark Plug Replacement: Remove wire. Clean area. Unsplug old plug. Gap new plug to 0.030". Install and torque to 18 ft-lbs.

WARNING! Always refer to torque specifications. Overtightening can damage components.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Dead battery, faulty spark plug, clogged fuel filter	Charge/replace battery; check spark plug; replace fuel filter.
Poor cutting performance	Dull blades, low deck height, worn belt	Sharpen/replace blades; adjust deck height; replace belt.
Excessive vibration	Unbalanced blade, loose spindle, damaged mandrel	Balance or replace blade; tighten spindle; inspect mandrel.
Transmission slipping	Low oil, worn drive belt, adjustment needed	Check oil level; replace belt; adjust clutch cable.
Battery not charging	Faulty alternator, corroded terminals	Test alternator output; clean battery terminals.

Reset: Disconnect battery for 5 minutes to reset electrical system if needed.

Warranty & Support

Craftsman T110 includes a 2-year limited warranty for residential use. Warranty covers defects in materials and workmanship. Keep original receipt for warranty claims.

Support: For parts ordering or technical assistance, contact Craftsman Customer Service at 1-888-331-4569 or visit www.craftsman.com. Provide model number (T110) and serial number (located on frame under seat).

Note: Warranty does not cover damage from misuse, lack of maintenance, or use of non-genuine parts.