The Craftsman T110 is a 19.5 HP, 42-inch riding lawn tractor designed for residential use. This manual provides detailed parts identification, diagrams, and ordering information for the engine, cutting deck, transmission, electrical system, controls, and chassis components. Below are key sections for safety, parts overview, engine components, cutting system, drive train, electrical parts, and maintenance.
Key assemblies: Engine (Briggs & Stratton 19.5 HP), 42-inch Cutting Deck, Hydrostatic Transmission, Electrical System, Controls, Chassis.
| Assembly | Part Number Prefix | Description |
|---|---|---|
| Engine | BS | Briggs & Stratton 19.5 HP, model 44N877 |
| Cutting Deck | CD-42 | 42-inch stamped steel deck with 3 blades |
| Transmission | HT-110 | Hydrostatic transaxle, model T40 |
| Electrical | EL | 12V battery, starter, ignition, wiring harness |
| Controls | CTRL | Steering wheel, pedals, levers, seat |
| Chassis | CH | Frame, front axle, wheels, tires |
| Belts & Pulleys | BP | Drive belt, deck belts, idler pulleys |
| Safety Components | SC | Blade brake clutch, seat switch, shields |
Briggs & Stratton 44N877, 19.5 HP, single cylinder, OHV.
WARNING! Disconnect spark plug before servicing engine parts. Use genuine Briggs & Stratton parts.
42-inch stamped steel deck, 3-blade system, manual PTO engagement.
CAUTION! Ensure blades are balanced and tightened to 45-55 ft-lbs. Replace in sets.
12V system with battery, starter, alternator, switches, wiring.
Key Components: Battery (Part #EL-110-002, 12V 280 CCA), Starter Solenoid (Part #EL-110-003), Ignition Switch (Part #EL-110-004), Wiring Harness (Part #EL-110-005), Alternator (Part #EL-110-006, 15 Amp), Fuse (Part #EL-110-007, 20 Amp), Headlight (Part #EL-110-008), Seat Safety Switch (Part #SC-110-001).
Installation: Disconnect battery negative terminal before servicing electrical parts.
Steering, pedals, levers, seat, dash.
Tip: Lubricate control linkage points with SAE 30 oil periodically.
Frame, body panels, footrests, hood, grille.
WARNING! Ensure all body fasteners are tight to prevent vibration and noise.
Common wear items: filters, belts, blades, spark plug, oil, tires.
| Part | Part Number | Replacement Interval |
|---|---|---|
| Air Filter | BS-44N877-004 | Every 25 hours or season |
| Oil Filter | BS-44N877-006 | Every 50 hours or season |
| Spark Plug | BS-44N877-005 | Every 100 hours |
| Deck Belt | BP-110-001 | Inspect annually, replace if worn |
| Drive Belt | BP-110-003 | Inspect annually, replace if cracked |
| Blade Set | CD-42-003 (3) | Sharpen annually, replace if damaged |
| Battery | EL-110-002 | Every 3-4 years |
Blade brake clutch (PTO), seat switch, deflector shields, warning labels.
Blade Brake Clutch (PTO): Part #SC-110-002. Stops blades when PTO disengaged.
Seat Safety Switch: Part #SC-110-001. Stops engine if operator leaves seat.
Deflector Shields: Deck front: Part #SC-110-003. Chassis: Part #SC-110-004.
Warning Labels: Set of safety decals: Part #SC-110-005.
Use part numbers from this manual. Contact Craftsman or authorized dealer.
Note: Parts may vary by production date. Provide model and serial numbers when ordering.
| Symptom | Possible Faulty Part | Part Number |
|---|---|---|
| Engine won't start | Ignition switch, safety switch, battery | EL-110-004, SC-110-001, EL-110-002 |
| Poor cutting performance | Worn blades, deck belt, spindle | CD-42-003, BP-110-001, CD-42-002 |
| Loss of drive power | Drive belt, transmission | BP-110-003, HT-110-001 |
| Excessive vibration | Unbalanced blade, loose spindle | CD-42-003, CD-42-002 |
| Deck won't engage | PTO clutch, switch | SC-110-002, EL-110-009 |
| Electrical failure | Wiring harness, fuse | EL-110-005, EL-110-007 |
Reset: Check all safety switches and connections.
Service: 1-888-331-4569; www.craftsman.com