This comprehensive service repair manual provides detailed instructions and diagrams for maintaining and repairing the Komatsu SK815-5n and SK815-5na Skid Steer Loaders. Covering serial numbers SK815-5N A30001 and up and SK815-5NA A10001 and up, this manual caters to machines equipped with 4D88E-5 and 4D84E-5 engines.

Delving deep into the intricacies of these skid steer loaders, the manual covers a wide range of topics, including:

* **General Information:** A fundamental understanding of the SK815-5n and SK815-5na, including safety precautions and maintenance procedures.
* **Structure, Function, and Maintenance Standards:** Detailed descriptions of the machine's components and their functions, along with recommended maintenance practices.
* **Standard Value Tables:** A collection of essential measurements and specifications crucial for accurate diagnostics and repairs.
* **Testing and Adjusting:** Step-by-step procedures for testing various components and making necessary adjustments to ensure optimal performance.
* **Troubleshooting:** A comprehensive guide to identify and resolve common problems, including fault codes and potential causes.
* **Disassembly and Assembly:** Illustrated instructions for taking apart and reassembling various components, accompanied by detailed diagrams and exploded views.
* **Diagrams and Schematics:** Clear and concise diagrams and schematics showcasing the electrical, hydraulic, and mechanical systems of the machines, aiding in troubleshooting and repair.

The manual covers a wide array of components, including:

* **Engine:** Piston, Liner, Piston Ring, Con Rod Bearing, Main Bearing, Valve Guide, Thrust Washer, Retainer, Exhaust Valve, Inlet Valve, Bushing, Glow Plug, Gasket, Overhaul Gasket Kit, Gasket Kit.
* **Undercarriage:** Track Link, Track Roller, Carrier Roller, Idler, Recoil Spring, Segment Group, Sprocket, Track Shoe, Pin & Bushing, Swing Bearing, Track Bolt & Nut, Plough Bolt & Nut, Mounting Bolt, Metric Hex Bolt, Segment Bolt & Nut.
* **Work Tools:** Bucket Teeth, Adaptor, Pin & Retainer, Ripper Teeth, Shank, End Bit, Side Cutter, Cutting Edge, Grader Blade.
* **Hydraulic System:** Cylinder Head, All Type of Pumps, Dowel Pin, Valve, Bushing, Spring, Bronze Disk, Drum, Gauge, Flange, Gear, Pinion, Shaft, Guide, Collar, Manifold, Pin, Universal Joint, Muffler, Crankshaft, Dowel, Bevel Gear, Impeller, Ring Lock, Sleeve, Compressor, Bracket, Tube Assy., Yoke, Wrench, Shim, Screw, Gear Torque Converter, Stud, Foot Valve, Bushing, Bushing Bronze, Chamber, Mounting, Cap Bearing, Gear Planet, Disk Brake Pad, Carrier, Strap, Snap Ring, Holder, Valve Seat, Rebuild Kit.
* **Operator's Cab:** Equalizer Bar, Diagonal Cap, Fuel Line Assy., Bearing Shell, Con Rod, Cage, Rod End, Hub, Fork, Grease Gun, Clutch Disc & Plate, Steering Disc & Plate, Transmission Disc & Plate, Piston Shoe, Set Plate, Rotor, Valve Plate, Shoe Plate, Swash Plate, Drive Shaft, Shim, Guide Piece, Guide Ring, Axel Shaft Bushing, Relief Valve, Cylinder Block, Axel Bush, Square Bearing, Stopper Joint, Disc Driving, Spring Compass, Gear Pump, Centre Pin, Servo Piston, Spring Conical, Block Bearing, Lever, Spacer, Coupling Spine, Solenoid Valve, Ball Guide, Check Valve, Gasket M/P, Retainer, Cam Rocker, Push Rod, O Ring, Gasket, Gasket Kit, Seal, Seal O-Ring, Wear Ring, Ring, Repair Kit, Oil Seal, Seal Kit, Back Up Ring, Lock, Seal Lip Type, Wiper Seal, Wiper Ring, Seal Group, Seal Assy, wheels, tyres, cab.

With numbered instructions, detailed illustrations, and comprehensive explanations, this manual provides a reliable resource for mechanics and technicians. It helps navigate repair procedures efficiently, ensuring accurate and effective maintenance.

The Komatsu SK815-5n skid steer loader is a robust and versatile piece of equipment designed for a wide range of applications. This compact yet powerful machine boasts a powerful engine and hydraulic system, enabling it to handle demanding tasks with ease. Its compact size and maneuverability allow it to navigate tight spaces and operate in confined areas, making it ideal for landscaping, construction, and agricultural applications. The SK815-5n is equipped with a variety of attachments, including buckets, forks, and augers, enabling it to perform a diverse range of operations, from material handling and excavation to snow removal and landscaping. Its operator-friendly design ensures comfortable and efficient operation, while its durable construction ensures long-lasting performance and reliability.

The SK815-5n is known for its impressive power and efficiency. Its robust engine provides ample torque for demanding tasks, while its advanced hydraulic system delivers smooth and precise control. The machine features a spacious operator cab with excellent visibility, providing the operator with a clear view of the work area. The SK815-5n also incorporates a range of safety features, including a rollover protection system (ROPS) and a falling object protection system (FOPS), to protect the operator in challenging conditions. Its versatility, reliability, and operator comfort make the Komatsu SK815-5n a popular choice for contractors, landscapers, and farmers seeking a compact but powerful skid steer loader for their demanding projects.