Need the factory specs for your Yanmar SV100-1A compact excavator? This 719-page service manual walks the machine from the top down: engine, turbocharger, hydraulic pump, control valve, swing motor, travel motor, and undercarriage. Inside: hydraulic circuit schematics with full pressure adjustment procedures, wiring diagrams for the electronic control system, and a dedicated troubleshooting section that separates non-breakdown symptoms from actual failures. You also get exploded views across every major assembly, a torque table covering all critical fasteners, and step-by-step rebuild procedures for both hydraulic and mechanical systems. Torque the swing bearing-to-lower frame bolts to 303.9-323.5 N*m (224.1-238.6 ft*lbf) with Loctite 262, and mark your calendar: rubberized fuel hoses come out at 2,000 hours or two years. Your machine is down and the clock is running. Download now, open it on your tablet, and walk straight to the machine.
What's Inside This Yanmar SV100-1A Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 12-25 | 1-1 Correct Work, 1-2 Safety Precautions, 1-3 Preparations, 1-4 Cautions for Disassembly and Reassembly, 1-5 Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 26-39 | 2-1 Specifications, 2-2 Outline Drawing and Working Area, 2-3 Weight List of Main Parts, 2-4 Lifting Capacity List |
| Service Standards | 40-63 | 3-1 Machine Performance, 3-2 Engine, 3-3 Undercarriage, 3-4 Controls, 3-5 Hydraulic Equipment, 3-6 Implement, 3-7 List of Tightening Torque |
| Engine | 64-245 | 4-1 Engine, 4-2 Fuel System, 4-3 Cooling System, 4-4 Lubrication System, 4-5 Turbocharger, 4-6 Starter Motor, 4-7 Alternator, 4-8 Electronic Control System |
| Hydraulic System | 246-277 | 5-1 Outline, 5-2 Hydraulic Circuit Schematic, 5-3 Circuit Operation, 5-4 Pressure Adjustment |
| Hydraulic Equipment | 278-485 | 6-1 Hydraulic Pump, 6-2 Control Valve, 6-3 Pilot Valve, 6-4 Swing Motor, 6-5 Travel Motor, 6-6 Cutoff Valve, 6-7 P.T.O. Solenoid Valve |
| Adjustment and Repair | 486-669 | 7-1 Electric Equipment of the Machine, 7-2 Undercarriage, 7-3 Controls, 7-4 Swing Bearing, 7-5 Hydraulic Equipment, 7-6 Implement, 7-7 Cabin, 7-8 Air Conditioner |
| Periodic Inspection and Servicing | 670-673 | 8-1 List of Periodic Inspection and Servicing |
| Fuel, Lube Oil and Grease Recommended | 674-677 | 9-1 List of Fuel, Lube Oil and Grease Recommended |
| Troubleshooting | 678-717 | 10-1 Non-Breakdowns, 10-2 Troubleshooting |
| Reference Data | 718-719 | 11-1 Specifications for Attachment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Swing bearing to lower frame tightening torque | 224.1 to 238.6 ft·lbf (303.9 to 323.5 N·m) | p. 57 |
| Rubberized fuel hoses replacement interval | every two years or every 2000 hours | p. 66 |
| Tightening torque for parallel pipe thread G (PF) 1/8 | 10.1 to 12.3 ft·lbf (13.7 to 16.7 N·m) | p. 61 |
| Maximum air intake restriction | 0.90 psi (6.23 kPa; 635 mmAq) | p. 78 |
| Radiator cap pressure | 12.80 (0.09) PSI (MPa) | p. 31 |
| Rubber crawler wear limit (height) | 0.20 (5) in (mm) | p. 49 |
| Steel crawler link wear limit (A) | 3.35 (85) in (mm) | p. 50 |
| Battery type | 130E41R-MF | p. 32 |
| Battery voltage - 5 hrs rate capacity | 12-92 V-Ah | p. 32 |
| System relief set pressure P1, P2 | 3982 (27.5) PSI (MPa) | p. 28 |
| Engine model | 4TNV98T-ZXWBV | p. 30 |
| Rated output / engine speed | 67.3 HP/2000 rpm | p. 30 |
Yanmar SV100-1A Common Problems This Manual Covers
Yanmar SV100-1A engine cranks but won't start, or fires and immediately stalls p. 678
Drain and inspect the fuel/water separator first; water contamination kills starting faster than most mechanical faults. Load-test the battery: spec calls for a 130E41R-MF at 12V, 92Ah (page 32), and a battery that reads full voltage at rest can still fail under starter load. If both pass, bleed air from the fuel system following procedures at page 64.
Manual Section: Engine Failure Diagnosis (General)Hydraulic functions are sluggish, bucket lift is weak, or implements move unevenly p. 278
Check hydraulic oil level first; the tank holds 30.38 gals (115 L) and can run low without obvious leaks. Verify main relief pressure reaches 3982 PSI (27.5 MPa) per the spec at page 28 before disassembling any components. If pressure is within spec but functions stay slow, inspect the pump for abnormal noise or heat using procedures at page 278.
Manual Section: Hydraulic Pump TroubleshootingEngine temperature climbs above the normal operating range, or overflow reservoir keeps filling p. 175
Inspect the radiator core and screen for packed debris before anything else. Pressure-test the radiator cap; it should hold 12.80 PSI (0.09 MPa). If the cap holds but coolant looks brown or gritty, drain and flush the system. Check fan belt tension and thermostat operation following cooling system service procedures in '4-3 Cooling System' starting on page 175.
Manual Section: EngineMachine veers left or right and tracks pull to one side during straight travel p. 49
Measure rubber crawler lug height; the service limit is 0.20 in (5 mm) per page 49, and worn tracks cause most drift complaints before the operator notices the lug height. Adjust track tension and verify undercarriage wear dimensions against service standards at page 40. If wear checks out, inspect the travel motor circuit through hydraulic equipment procedures at page 421.
Manual Section: Travel Motor TroubleshootingBattery charge alarm lamp illuminates and stays on during normal machine operation p. 678
Load-test the battery first; this machine uses a 130E41R-MF rated at 12V, 92Ah (page 32), and a defective cell won't show up on a resting voltage check. Check alternator belt tension and inspect both battery terminals for corrosion. If the belt and battery pass, trace the charging circuit fault through electrical troubleshooting procedures at page 678.
Manual Section: Electrical Equipment on Panel TroubleshootingFrequently Asked Questions
What do the Yanmar SV100-1A error codes mean?
The manual provides a "Detected failure list" in the "Electric Equipment of the Machine" section, which details the meaning of error codes by the number of flashes of the "Engine trouble monitor lamp". For example, 4 flashes indicate a "Coolant temperature sensor failure", and 5 flashes indicate an "Accelerator sensor failure".
How do I reset the hydraulic system on a Yanmar SV100-1A?
To reset the hydraulic system after disassembly or parts replacement, air must be released. For variable displacement piston pumps, this involves putting a specified quantity of hydraulic oil into the tank, keeping the oil supply cap removed, installing an air bleeder hose, loosening the bleeder valve half a turn, checking for air release, and then tightening the valve. For hydraulic cylinders, the engine speed should be set to low idling, and cylinders extended/retracted slowly 4-5 times up to 1.97 to 3.9 inches from each stroke end, then fully extended/retracted 3-4 times.
How to reset Yanmar SV100-1A error codes
The manual does not describe a manual reset procedure for fault codes. It indicates that an "Engine diagnosis service tool" is used for troubleshooting and accessing detailed failure information, logs, and freeze frame data. For issues requiring data rewriting or migration (e.g., replacing the fuel injection pump or E-ECU), contact a Yanmar dealer.
How to clear Yanmar SV100-1A fault codes
The manual does not describe a manual procedure to clear fault codes. Fault codes are indicated by the "Engine trouble monitor lamp" blinking, and troubleshooting involves using an "Engine diagnosis service tool" to access detailed information. For specific component replacements like the fuel injection pump or E-ECU, data rewriting or migration by a Yanmar dealer is required.
How will I receive this Service Manual?
Immediate download of the complete 719-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Can I print specific sections of this Service Manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Can I find hydraulic circuit diagrams in this Yanmar SV100-1A manual?
Yes, complete hydraulic schematics with flow diagrams, valve configurations, and pressure specifications are included.
Reviews
There are no reviews yet.