1999–2003 Kobelco SK70SR Short Radius Excavator Parts Catalog (ASN YT01-00101)

This illustrated parts catalog covers 1999–2003 Kobelco SK70SR Short Radius Excavators starting at serial number YT01-00101. Assembly drawings, component cross-sections, and parts listings support component identification and replacement-parts selection. Repair procedures require a separate service manual.

• Engine and fuel system: Isuzu engine assembly and internal parts illustrations, injection pump and nozzle listings, plus radiator, air cleaner, muffler, and filter components.

• Hydraulic components: Pump, main control valve, pilot valve, swivel joint, and cylinder drawings, with repair-kit contents listed for selected assemblies.

• Travel and swing: Propelling motor, swing motor, and swing reduction views, plus slewing ring, track roller, crawler idler, track shoe, and crawler belt sections.

• Boom and bucket equipment: Standard boom, short and long arms, extension arm, and bucket configurations, including separate boom-safety and boom-and-arm-safety hydraulic arrangements.

• Frame and cab: Upper frame, counterweight, and cab installation drawings, standard and power-window cab configurations, and air conditioner and heater assemblies.

• Electrical components: Instrument panels, MECHA-TRO controller groups, and harness routing illustrations, including connector layouts for KAI and EU configurations.

This catalog suits readers who can match component drawings to the machine and use serial-number applicability notes when selecting parts.

Engine Parts and Serial-Number Changes

The engine sections extend beyond external accessories to the cylinder head, block, crankshaft, pistons, connecting rods, timing gears, and rocker-arm mechanism. These are illustrated parts references; they do not provide an engine overhaul sequence.

The fuel-line listing distinguishes filter YJ21P01008P1 through serial YT01-01340 from YJ21P01008P2 starting at YT01-01341. That change helps identify the applicable filter before ordering. Other applicability notes distinguish cab hardware, engine harnesses, and controller assemblies across production changes.

Hydraulic Assemblies and Parts-List Limits

More than 100 assembly illustrations include exploded views and component cross-sections. Examples include the YT10V00003 pump, 24100J12125 swivel joint, YT15V00002 propelling motor, and YT15V00005 swing motor.

Parts-list coverage: The propelling and swing motor sections have drawings but empty accompanying parts tables. The boom and arm cylinder sections have the same limitation. These sections provide visual references without a populated list of internal replacement-part numbers.

The bucket cylinder section does list separate rod-side and piston-side repair kits, while the YT10V00003 pump section identifies internal components and kit contents. These listings support repair-parts selection; exploded views do not supply disassembly, cylinder repacking, or overhaul instructions.

Hydraulic line drawings separate suction, delivery, main, and return arrangements. Additional figures distinguish boom-safety and combined boom-and-arm-safety configurations. Use the machine’s service instructions for hydraulic pressure release and support of raised attachments.

Cab Wiring and Equipment Variants

The KAI and EU harness illustrations show connector faces, terminal identifiers, and wire codes for components such as the key switch, controller, and swing parking solenoid. They provide harness connection and location information rather than a complete electrical troubleshooting manual.

The travel-alarm harness view identifies routing relative to the pilot hoses and the clipping points. Incorrect routing can expose the wiring to rubbing damage.

Standard and power-window cab sections identify different window mechanisms and associated hardware. Air-conditioning coverage also distinguishes installations with a hot-and-cool box, alongside separate heater assemblies and instrument-panel variants.

Selected Boom and Arm Configurations

These assembly sizes are a small sample of the configuration information available for parts identification.

The standard boom is listed as 3.72 m. Separate sections cover the 1.65 m arm and the 2.07 m long arm, with corresponding hydraulic line drawings. These dimensions identify equipment configurations for matching the illustrated assemblies.

PDF Search, Navigation, and Page Breakdown

Search and drawing detail: Figure headings and populated parts tables contain searchable text; labels embedded in the drawings are not searchable. Five PDF bookmarks provide entry points to the index, introductory material, and main catalog, without individual assembly bookmarks. Small connector identifiers and wire codes in the checked harness illustrations require zooming.

The download contains one printable 449-page PDF: 439 catalog pages, five figure-index pages, one search-guide page, two hardware-conversion pages, one introductory insert, and one blank closing page. All additional pages are included in the total.