New Holland LS25, LS35, LS45, LS55 Yard Tractors Service Manual (40002551R0)

These LS25–LS55 yard tractors spend their lives mowing, towing small trailers, and cleaning up around properties, so they see a lot of starts, stops, and tight maneuvering. This service manual is what I’d grab when I need to trace a no-start, chase down a weak hydro drive, or strip a deck to inspect spindles and belts without guessing. For example, if one of these tractors loses drive after warming up, this book walks you through a logical set of checks so you can confirm whether it’s linkage, hydraulic, or internal wear before you start buying parts.

Applications & Use Cases

• Systematic diagnostics for hard-start, no-charge, or poor-drive complaints, following symptom → check → confirm.
• Disassembly/assembly guidance for mower decks, steering components, and driveline so things go back aligned and sealed.
• Adjustment concepts for linkages, deck height, and controls to remove slop and restore consistent operation.
• Testing mindset for electrical circuits and safety interlocks using basic meters instead of guesswork.
• Planned maintenance workflow so you can service filters, belts, and fluids in a clean, repeatable way.

FAQ

Q: Can I keep this manual on a tablet in the shop?

A: Yes, it’s practical to use digitally; you can zoom diagrams and search terms while working at the bench or machine.

Q: Is it worth printing sections of this manual?

A: Many techs print the pages for the specific job, mark them with notes, and keep them with the work order for future reference.

Safety Note

Always disable the engine, remove the key, and verify all moving parts are at rest before reaching under the hood or deck.

New Holland LS25, LS35, LS45, LS55 Yard Tractors Index:

• 40002551A

New Holland