New Holland L225 / L325 / L425 / L445 Repair Manual (120 P.)

New Holland L-Series Service Coverage

• Covers 1985–1990 New Holland L225, L325, L425, and L445 skid steer loaders, including the L-445D Deutz engine variant
• Original OEM publication, DealerNation service archive compilation
• Contains 137 technical diagrams, 4 exploded-view transmission assemblies, 6 hydraulic schematics, and 4 torque specification tables
• Downloads to your account within seconds of checkout
• Permanent availability in your purchase account — no re-buy required
• Laid out for standard letter and A4 printing
• Indexed PDF search covers every chapter and appendix
• This specific edition provides the precise service instructions for the transition from engine-to-transmission chain couplers to direct-drive shafts for the L-series build.

Document Structure and Scope

Technical Walkthrough and Maintenance Data

This manual documents the hydrostatic transmission and hydraulic lift systems across the entire L-series lineup. Chapters detail the removal, disassembly, and reassembly of variable displacement piston pumps, fixed displacement motors, and auxiliary gear pumps. Detailed information explains the testing procedures for pump and motor efficiency, ensuring proper system output through flow measurement and pressure-gauge diagnostics. Additionally, the text covers the seat-activated boom lockout mechanisms, detailing both Style I and Style II sensor adjustments.

Hydraulic, Electrical, and Drive Specifications

Technical data includes hydraulic pressure settings, charge pressure ranges of 90–150 psi, and master relief valve thresholds of 2,250 psi. The manual provides tightening torque values for hydraulic tubes, drive sprockets, and engine components, referencing a dedicated bolt torque chart for standardized hardware. Electrical diagnostics for Motorola RA series alternators are documented with specific voltage checks for field circuits and isolation diodes. Note: All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This factory manual provides specialized maintenance instructions for the 1985–1990 New Holland L225, L325, L425, and L445 series, focusing on hydrostatic drive integrity, electrical testing, and mechanical drive shaft configuration.