New Holland Guardian SP.295F, Guardian SP.300F, Guardian SP.345F, Guardian SP.400F Sprayer Pdf Repair Service Manual (p. Nb. 47691240)

New Holland Guardian SP.295F, SP.300F, SP.345F, SP.400F Sprayer PDF Repair Service Manual (Publication No. 47691240) Tier 4B Final

Modern crop protection depends on accuracy just as much as application speed. Whether spraying fungicides, herbicides or liquid fertilizer, inconsistent boom performance, hydrostatic drive faults or hydraulic pressure loss can quickly reduce field productivity and application accuracy. The New Holland Guardian SP.295F, SP.300F, SP.345F and SP.400F self-propelled sprayers were engineered for large-scale farming with advanced hydrostatic drive systems, high-capacity solution tanks, precision boom control and powerful Tier 4B Final engines. To maintain these sophisticated machines, New Holland produced this OEM workshop manual for dealership technicians and professional agricultural repair facilities.

This OEM Factory Repair Service Manual (Publication No. 47691240) covers PIN YFYM00001 and above for the Guardian SP.295F, SP.300F, SP.345F and SP.400F Tier 4B Final sprayers. It provides detailed repair procedures for engine systems, hydrostatic transmission, front axle assemblies, hydraulic circuits, steering, spraying equipment, electrical diagnostics, cab systems and complete machine overhaul using official New Holland workshop specifications.

Purpose-Built for High-Acreage Precision Spraying

Designed for commercial farming operations, these Guardian sprayers combine powerful Cummins Tier 4B Final diesel engines with electronically controlled hydrostatic propulsion, high-clearance chassis and precision spraying technology. Depending on the model, engine output ranges from 300 HP to 400 HP, supported by a 150-gallon (568 L) fuel tank, 15-gallon (57 L) DEF tank and heavy-duty tandem hydraulic drive pumps that deliver dependable field performance during extended spraying operations.

Machine Information

Major Repair Sections Included

Professional Workshop Tasks

• Calibrate the hydrostatic transmission after drive component replacement.
• Diagnose boom hydraulic pressure fluctuations before replacing valves.
• Repair steering and front axle assemblies for accurate field handling.
• Inspect spray plumbing and hydraulic circuits for leaks and flow restrictions.
• Rebuild hydraulic pumps using OEM service tolerances.
• Restore boom performance through proper adjustment procedures.
• Troubleshoot electronic control systems using factory wiring diagrams.
• Service cab climate control components for operator comfort.
• Inspect wheel hubs and suspension before peak spraying season.
• Use exploded assembly illustrations during complete component rebuilding.
• Verify machine calibration and spraying performance before returning to the field.

Manual Specifications

Frequently Asked Questions

Which sprayer models are covered by this manual?

This manual covers the New Holland Guardian SP.295F, SP.300F, SP.345F and SP.400F Tier 4B Final Self-Propelled Sprayers (PIN YFYM00001 and above) under Publication No. 47691240.

Does this manual include boom and spraying system repairs?

Yes. It covers spray boom assemblies, hydraulic controls, plumbing, spray system components and calibration procedures.

Are hydraulic schematics and electrical wiring diagrams included?

Yes. Complete OEM hydraulic schematics, electrical wiring diagrams and troubleshooting procedures are included for accurate diagnostics.

Can this manual be used for complete machine overhauls?

Absolutely. It provides step-by-step instructions for inspection, disassembly, rebuilding, adjustment, calibration and operational testing of all major machine systems.

Who should use this OEM repair service manual?

This publication is intended for New Holland dealership technicians, agricultural equipment repair workshops, commercial farming operations, fleet maintenance departments and experienced owners performing professional repairs.