Part of the Yanmar Parts Manuals.
Tracking down the exact OEM replacement components for your crawler back-hoe is simple with this 121-page Yanmar SV08-1A Parts Catalog PDF (OEM #0CS10-M52103EN). Open the file to find highly detailed exploded views covering the complete turning motor, travel frame, and variable leg cylinder assemblies. You get complete electrical wiring diagrams, full hydraulic schematics for the main control valve, and factory part numbers for all regional variants including the US, AS, KR, NZ, and SA models. Verify the correct undercarriage components before ordering, noting the exact 53.5mm track roller diameter for Y-spec machines versus the 62mm S-spec roller. Stop ordering the wrong parts and waiting on returns. Grab this bookmarked download, match up your assemblies on screen, and get your excavator back in the dirt.
What's Inside This Yanmar SV08-1A Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Muffler & Air Cleaner, Accelerator, Fuel Tank, Fuel Piping | |
| Cooling System | Radiator & Mount | |
| Engine | Turning Frame & Turning Bearing | |
| Electrical System | Battery, Wiring | |
| Hydraulics & 3-Point Hitch | Hydraulic Pump & Joint, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Blade Cylinder, Variable Leg Cylinder, Control Valve, 71.Control Valve, 72.Control Valve, 73.Control Valve, 79.Control Valve, 80.Control Valve, 81.Control Valve, Check Valve, Tank - Pump - Control Valve | |
| Body & Operator Station | Travel Frame, 78.Travel Frame, Step & Turning Lock, Seat & Seat Mount, ROPS & Seat Belt, Bonnet, Hyd. Oil Tank, Boom & Boom Bracket | |
| Decals & Accessories | Label, 82.Label, 77.Label, 83.Label, 84.Label, Label Kit | |
| Other Components | Reference Materials, Engine Mount, 68.Engine Mount, Equipment, Sprocket & Track Roller, 75.Track Roller, Idler, Crawler Adjust & Crawler, Link Stand, Stopper, Operation Lever, Travel Lever & Blade Lever, Link, Swing Pedal, P.T.O. Pedal, Variable Leg Lever, Travel Motor |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track roller diameter (Y specification) | 53.5mm | p. 34 |
| Track roller diameter (S specification) | 62mm | p. 34 |
Yanmar SV08-1A Common Problems This Manual Covers
Yanmar SV08-1A undercarriage clunking noise when tramming, track rollers visibly worn and leaking grease.
Inspect the Drivetrain Parts Diagram on page 34 to find the correct Y specification track roller assembly. Measure your existing rollers to confirm the 53.5mm diameter before ordering. Cross-reference the shaft, seal, and bearing part numbers to rebuild or replace the entire unit.
Manual Section: Sprocket & Track Roller(Y Spec.) p. 34Lower rollers seized up after working in deep mud, tracks repeatedly jumping off the front idler.
Check the exploded view on page 35 to identify the S specification track roller components. Verify your machine uses the larger 62mm diameter rollers. Match the specific oil seal, ball bearing, and shaft part numbers to your serial number range before contacting your parts supplier.
Manual Section: 75.(14A)Track Roller(S Spec.) p. 35Hydraulic fluid pooling under the center turning joint, hoses chafed and weeping fluid.
Locate the control valve to swivel joint piping diagram on page 94. Identify the correct hose assemblies and the RGI-1/4 threaded joint adapters. Order the exact replacement O-rings and elbows listed in the catalog to ensure a leak-free repair on the variable leg link type frame.
Manual Section: Control Valve - Swivel Joint(Variable Leg : Link Type) p. 94Frequently Asked Questions
What are the replacement specifications for track tension components?
For track rollers, the Y specification has a diameter (D) of 53.5mm, and the S specification has a diameter (D) of 62mm. Specific components for the idler and crawler adjust include the SHAFT IDLER (GRAY:49) with part number 172449-37110-1, and the SEAL, OIL QLN306213.2 with part number 1A1060-48300. p. 34
What are the replacement specifications for rubber hoses?
The manual provides specific part numbers for various rubber hoses. For example, the HOSE A, AIR CREANER is part number 172A20-11510, and the HOSE, RUBBER is part number 172446-13480. The HOSE,FO 80 is identified by part number 172A29-14600, and the HOSE, FUEL by part number 172734-14620. p. 23
How do you fix yanmar SV08-1A undercarriage clunking noise when tramming, track rollers visibly worn and leaking grease?
Inspect the Drivetrain Parts Diagram on page 34 to find the correct Y specification track roller assembly. Measure your existing rollers to confirm the 53.5mm diameter before ordering. Cross-reference the shaft, seal, and bearing part numbers to rebuild or replace the entire unit. p. 34
How do you fix lower rollers seized up after working in deep mud, tracks repeatedly jumping off the front idler?
Check the exploded view on page 35 to identify the S specification track roller components. Verify your machine uses the larger 62mm diameter rollers. Match the specific oil seal, ball bearing, and shaft part numbers to your serial number range before contacting your parts supplier. p. 35
Is this Yanmar SV08-1A Parts Catalog a digital download?
Instant PDF download. You get the full 121-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Are there any print restrictions on this manual?
This PDF is completely DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Are hydraulic system diagrams in this Yanmar SV08-1A Parts Catalog?
Yes, this Yanmar SV08-1A Parts Catalog includes a hydraulic system diagram.
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