Craftsman T110 Riding Mower Parts Manual

The Craftsman T110 Riding Mower is a 42-inch deck lawn tractor with a 19.5 HP Briggs & Stratton engine, hydrostatic transmission, and electric PTO clutch. This manual provides detailed parts identification, replacement procedures, maintenance schedules, and safety information for owners and technicians. Below are key sections covering parts diagrams, specifications, assembly, maintenance, troubleshooting, and ordering information.

1. Parts Overview & Diagrams 2. Specifications 3. Assembly Instructions 4. Maintenance Schedule 5. Engine Parts 6. Deck & Cutting System 7. Drive & Transmission 8. Electrical System 9. Safety Features 10. Parts Ordering 11. Troubleshooting

Parts Overview & Diagrams

Key components: Engine assembly, Mower deck, Transmission, Steering system, Seat, Battery, Electrical harness, Wheels & tires.

Component Group	Description
Engine Assembly	Briggs & Stratton 19.5 HP, single cylinder, air-cooled
Mower Deck	42-inch stamped steel, 3-blade system with anti-scalp rollers
Transmission	Hydrostatic drive, single speed range
Steering System	Rack and pinion, tie rods
Seat	High-back, adjustable, with seat safety switch
Battery	12V, 230 CCA, maintenance-free
Electrical Harness	Wiring for ignition, PTO, lights, safety switches
Wheels & Tires	Front: 15x6.00-6, Rear: 20x10.00-8
Blades	42-inch deck blades (part # 134149)
Drive Belt	5/8" x 95-1/2" (part # 144959)

Specifications

Model: Craftsman T110.
Engine: 19.5 HP Briggs & Stratton, 540cc, OHV.
Deck Size: 42 inches.
Transmission: Hydrostatic, single speed range.
Cutting Height: 1.5 to 4 inches (6 positions).
Fuel Capacity: 2.5 gallons.
Battery: 12V, 230 CCA.
Tires: Front 15x6.00-6, Rear 20x10.00-8.
Weight: 450 lbs (approx).
Warranty: 2-year limited.

Assembly Instructions

Unpack and inspect contents. Assemble on level surface.

Install steering wheel: Align splines, secure with bolt.
Attach seat: Mount with provided bolts, connect safety switch.
Install battery: Place in tray, connect red (+) then black (-) terminals.
Attach mower deck: Lower deck lift, align with pins, secure with retaining clips.
Install blades: Use blade adapter and bolt (torque to 40-50 ft-lbs).

WARNING! Wear gloves when handling blades. Ensure all bolts are tightened to specification.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Interval	Task	Parts Required
Every 8 hours	Check tire pressure, blade condition	Air gauge, wrench
Every 25 hours	Change engine oil, check belts	SAE 30 oil (48 oz), filter
Every 50 hours	Replace air filter, spark plug	Air filter # 142069, Spark plug # RC12YC
Every 100 hours	Replace fuel filter, sharpen blades	Fuel filter # 142071, blade balancer
Seasonal	Lubricate fittings, check battery	Grease, battery tester

Engine Parts

Briggs & Stratton 19.5 HP engine parts list.

Cylinder Head: Part # 123456.
Piston & Rings: Part # 123457.
Carburetor: Part # 123458.
Air Filter: Part # 142069.
Oil Filter: Part # 142070.
Spark Plug: NGK RC12YC.
Starter Motor: Part # 123459.
Fuel Pump: Part # 123460.

Note: Use genuine Briggs & Stratton parts for warranty compliance.

Deck & Cutting System

42-inch mower deck parts and maintenance.

Blades: Part # 134149 (replace if bent or dull).
Spindles: Part # 134150 (grease every 25 hours).
Belt: Part # 144959 (inspect for wear).
Deck Shell: Part # 134151 (check for cracks).
Anti-scalp Rollers: Part # 134152 (adjust height).

Tip: Disconnect spark plug before servicing deck.

Drive & Transmission

Hydrostatic transmission parts and service.

Drive Belt: Part # 144959.
Transaxle: Part # 134153 (sealed unit).
Drive Pulley: Part # 134154.
Idler Pulleys: Part # 134155.
Hydrostatic Fluid: 20W-50 (check level annually).

CAUTION! Do not open transmission; refer to authorized service.

Electrical System

12V electrical system components.

Component	Part #	Function
Battery	U1-230	12V, 230 CCA
Starter Solenoid	123461	Engages starter motor
Ignition Switch	123462	Powers electrical system
PTO Switch	123463	Activates mower deck
Safety Switches	123464	Seat, brake, blade engagement

Safety Features

Built-in safety systems to prevent accidents.

Seat Safety Switch: Stops engine if operator leaves seat.
Blade Brake Clutch: Stops blades within 3 seconds when PTO disengaged.
Brake/Clutch Interlock: Prevents starting unless brake depressed.
ROPS: Roll Over Protection Structure (optional).

WARNING! Never bypass safety switches. Always wear protective equipment.

Parts Ordering

Order genuine Craftsman parts through authorized dealers.

Identify part number from diagrams in this manual.
Contact local Craftsman dealer or visit www.craftsman.com.
Provide model number (T110) and part number.
For warranty claims, have proof of purchase ready.

Support: 1-888-331-4569; www.craftsman.com/parts

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Dead battery, safety switch	Charge battery; ensure brake depressed, seat occupied.
Poor cutting performance	Dull blades, low deck	Sharpen/replace blades; adjust cutting height.
Loss of power	Clogged air filter, old fuel	Replace air filter; drain old fuel, refill with fresh.
Vibration	Unbalanced blade, loose parts	Balance blade; tighten deck bolts, check spindles.
Hydrostatic issues	Low fluid, worn belt	Check fluid level; replace drive belt if cracked.

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

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