Written for the SK025-2 hydraulic excavator alone, this Kobelco SK025-2 parts catalog PDF (OEM ID S4PV1007) runs 315 pages and maps the machine from the power plant to the bucket. Superstructure groups take the largest share of the book, with exploded views of the slewing motor, valve install, upper hydraulic lines and wiring harness, each callout keyed to a Kobelco part number. Undercarriage pages break down the crawler idler and adjuster, track rollers, shoes and swivel joint, while optional groups add the outrigger, breaker lines and long or reinforced arms. A parts name index works backward from a component to its number. Order the engine oil filter as element 80x80L, and confirm your engine reads 3TNE 78A-YB before quoting anything for it. Pulling a track roller only to find the replacement doesn't match costs you the whole day. Print the exploded view you need and let it soak up grease on the bench; the bookmarked, text-searchable file stays clean on the laptop.
What's Inside This Kobelco SK025-2 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| General Maintenance Items | 16-21 | Filter List, Nut & Sleeve Parts, Paint Color |
| Superstructure | 22-97 | Bracket Assy, Swing, Engine Assy, Control Assy, Engine, Power Plant Assy, Frame Assy, Upper |
| Undercarriage | 98-113 | Lower, Group, Ring Assy, Slewing, Idler Assy, Crawler, Idler Adjust |
| Attachments | 114-121 | Boom, Assy, Light Assy, Std. Arm Assy, Std. Bucket Assy |
| Tools and Spare Parts | 122-123 | Tool & Accessory, Cab Assy, Speaker Instal, Heater Instal |
| Optional Parts | 124-155 | Plate Assy, Floor, Cab Instal, Panel Assy, Instrument, L/H, Outrigger Assy |
| Name - Plate | 156-165 | Name Plate Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| R.O.P.S. bolt torque (Item 6 & 7) | 282 ft. lbs. | p. 74 |
| R.O.P.S. bolt torque (Item 8, 9, & 10) | 133 ft. lbs. | p. 74 |
| Engine Model | 3TNE 78A-YB | p. 264 |
| Gross Vehicle Weight | 6,195 lbs | p. 74 |
| Engine Oil Filter Element | 80x80L | p. 17 |
| Engine Oil Filter | 80x80L | p. 286 |
Kobelco SK025-2 Common Problems This Manual Covers
Kobelco SK025-2 boom control valve spool and valve body show an asterisk instead of a part number
Check the boom valve assembly PV30V00010F1 parts list on page 192. Items marked with an asterisk, like the spool and valve body, cannot be supplied as single parts per the catalog note on page 187. Order the listed check valve PV30V00010S008, spring 243601757825 and O-rings PV30V00010S010 and S011, or replace the whole assembly.
Manual Section: Hydraulic System Troubleshooting p. 192Engine oil filter element part number unclear when ordering for the Yanmar 3TNE 78A-YB engine
Check the filter list in the General Maintenance Items section on page 17. The engine oil filter element kit is part 129150-35151, sized 80x80L. Cross-check that number against the engine parts listing on page 286, which shows the same 129150-35151 filter for the 3TNE 78A-YB engine documented on page 264.
Manual Section: General Maintenance Items p. 17Harness assy replacement part numbers don't match the machine, unsure which serial range applies
Verify your serial number falls within PV06201 to 07928, the range printed on the harness assembly sheets on pages 92 through 94. Match the harness by item number on the page 93 layout, then pull the part number from the page 94 list, such as harness PV13E01017P1 or horn 2447R166.
Manual Section: Electrical System Troubleshooting p. 94Propelling control valve right, left and straight travel sections confused when ordering seal parts
Check the section label before ordering. The propelling right valve is PV30V00012F1 on page 194, left is PV30V00013F1 on page 196, and straight is PV30V00006F1 on page 195. Right and left share seal plate PV30V00012S008 and wiper PV30V00012S011; the straight section carries its own filter(A) 2436R1307S9.
Manual Section: Hydraulic System Troubleshooting p. 194Control valve relief and anti-void valve assemblies, multiple part numbers listed with no obvious match
Check the control valve assembly PV30V00005F1 breakdown on page 190. Items 16, 17 and 18 are relief valve assemblies PV22V00005F1, PV22V00002F1 and PV22V00003F1, and item 19 is anti-void valve PV22V00004F1. Match the item position on the page 189 exploded view before ordering, since each relief assembly is a separate part number.
Manual Section: Hydraulic System Troubleshooting p. 190Swing and arm control valve sections leaking, need correct check valve, wiper and O-ring part numbers
Check the swing valve assembly PV30V00014F1 list on page 197 and the arm valve PV30V00015F1 list on page 198. Both use check valve PV30V00010S008 and spring 243601757825. The swing section adds wipers PV30V00012S011, seal plates PV30V00012S008 and O-rings ZD12P01200. Order only numbered items; asterisk parts mean full assembly replacement.
Manual Section: Hydraulic System Troubleshooting p. 197Frequently Asked Questions
What bolts hold the counterweight on the Kobelco SK025-2?
The counterweight is held by 2 capscrews, M20 x 80, part number ZS18C20080. The catalog lists the bolts, not their tightening torque. p. 24
What is the replacement part number for the air cleaner element on the Kobelco SK025-2?
The replacement air cleaner element for the engine is part number 129350-12900. p. 17
What M10 x 80 bolts does the boom assembly on the Kobelco SK025-2 use?
The boom assembly uses 3 capscrews, M10 x 80, part number ZS18C10080. The catalog lists the bolts, not their tightening torque. p. 116
What is the part number for the hydraulic return filter on the Kobelco SK025-2?
The hydraulic return filter element is part number PR50V00002P1. p. 17
What is the correct bolt size for the track roller installation?
The bolts used for the track roller installation (Part No. HS18F14040G1) are M14 x 40. p. 105
How is this Kobelco SK025-2 Parts Catalog delivered?
You download the Parts Catalog yourself: 315 pages, searchable PDF, available immediately. Keep a copy on every device you use.
Does this Kobelco SK025-2 manual allow printing?
Yes. Print a chapter or just the pages for the job at hand, for use in your own shop. Any home or office printer works.
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