All 403 pages of this service manual are dedicated to one compact excavator: engine, hydraulic circuits, undercarriage, electric systems, and every step-by-step procedure from control valve teardown to swing bearing reinstallation. Inside you get hydraulic schematics for each operating circuit, including boom, arm, bucket, swing, travel, and blade, plus wiring diagrams tracing the LCD monitor, alarm system, and engine start/
What's Inside This Yanmar SV16 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | - | Correct Work, Safety Precautions, Disassembly and Reassembly, Hydraulic Equipment Removal and Installation, Hydraulic Piping, Handling Seals, Hydraulic Hose Installation |
| Technical Data | - | Specifications, Outline Drawing and Working Area, Weight List of Main Parts, Lifting Capacity List, Periodic Inspection and Servicing, Fuel, Lube Oil and Grease Recommended |
| Service Standards | - | Machine Performance, Engine Nominal and Allowable Values, Undercarriage Specifications, Controls, Hydraulic Equipment, Implement, List of Tightening Torque, Pressure Adjustment |
| Engine | - | Safety Statements, Cylinder Head Components, Fuel System, Cooling System, Lubrication System, Starter Motor, Alternator, Electric Wiring |
| Electric System | - | Electric Equipment Layout, LCD Monitor and Alarm Systems, Engine Start and Stop Circuit, Battery Charge, Error Code List |
| Hydraulic System | - | Outline, Circuit Operation (Boom, Arm, Bucket, Swing, PTO, Blade, Travel), Hydraulic Pump Disassembly/Reassembly, Control Valve Repair, Pilot Valve Repair, Swing Motor |
| Adjustment and Repair | - | Engine and Electric Equipment Removal/Reinstallation, Undercarriage Removal/Reinstallation, Controls Adjustment, Swing Bearing, Hydraulic Equipment Removal/Reinstallation |
| Troubleshooting | - | Non-Breakdowns, Machine and Engine Troubleshooting, Low Output, Overheating, Smoke Emission, Starter Motor, Charging Failure, Work Implement Issues |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Travel motor to Track frame tightening torque | 46 to 54 N•m | p. 57 |
| Swing motor to Turning frame tightening torque | 116 to 138 N•m | p. 57 |
| Hydraulic hose clip tightening torque | 2,5 to 3,5 N•m | p. 57 |
| Seal replacement instruction | Use new seals, split pins, etc. for reassembly. | p. 6 |
| Parallel pipe thread (G (PF) 1/8) tightening torque | 13.7 to 16.7 N•m | p. 61 |
| Taper pipe thread (G (PF) 1/8) tightening torque | 6.9 to 8.8 N•m | p. 61 |
| Fuel filter filtration area | 432 cm² | p. 25 |
| Oil/water separator type | Mesh filter | p. 25 |
| Air cleaner type | Cyclone type | p. 25 |
| Air cleaner filtration area | 4400 cm² | p. 25 |
| LO filter type | Full flow filter | p. 25 |
| LO filter filtration area | 800 cm² | p. 25 |
Yanmar SV16 Common Problems This Manual Covers
Yanmar SV16 engine runs hot under heavy load with temperature gauge spiking and coolant boiling over p. 61
Inspect the cooling system for leaks and verify coolant hose clips are tightened to 2.5 to 3.5 N•m as shown on page 55. Replace aging coolant hoses every 2000h according to the maintenance intervals on page 32 to prevent pressure loss and overheating.
Manual Section: Machine and Engine Troubleshooting (General)Boom and bucket functions feel weak or slow down significantly after the hydraulic fluid warms up
Check the system relief set pressure and verify it reaches 17.6 MPa as specified on page 20. Inspect hydraulic hoses for damage and ensure hose clips are torqued to 2.5 to 3.5 N•m on page 57. Use new seals for any reassembly per page 6.
Manual Section: Work Implement Operation IssuesMachine pulls to one side during travel or rubber track derails while turning on uneven ground p. 326
Measure the rubber crawler clearance and adjust the tension to maintain 8 to 13 mm of sag according to page 326. Check the rubber track wear limit on page 48 and replace the tracks if tread depth falls below 8 mm to prevent derailment.
Manual Section: Travel Operation IssuesEngine turns over fast but refuses to start or idles rough with excessive white smoke emission
Drain water from the separator and replace the fuel filter every 500h as dictated on page 32. Test the fuel injection pressure to ensure it holds steady between 11.8 to 12.8 MPa per the technical specifications on page 25 before suspecting internal pump faults.
Manual Section: Engine Troubleshooting ChartsFrequently Asked Questions
How do I reset the fault code?
To address an error code, check the connectors and harnesses related to the specific malfunction. Then, turn the starter switch to the “OFF” position and then to the “ON” position to see if the error code is displayed again. This procedure is a general corrective measure for various fault codes, such as accelerator sensor malfunctions or engine coolant temperature sensor issues.
What are the torque specs for track motor bolts?
The tightening torque for the travel motor bolts connecting to the track frame is specified as 46 to 54 N·m. For these bolts, ThreeBond 1324 adhesive should be applied. This information is found in the 'List of Tightening Torque' section of the service manual.
What are the replacement specifications for Hydraulic hoses?
Hydraulic hose specifications are identified by various parameters including material (e.g., Plastic), working pressure (e.g., 2489 to 2986 psi), nominal diameter (e.g., 3/8"), fitting type (e.g., Taper pipe thread R (PT)), length (e.g., 29.5 in.), and hose protector (e.g., Coil spring). When replacing, ensure the new hose matches these specifications to maintain proper function and performance.
How do you fix engine runs hot under heavy load with temperature gauge spiking and coolant boiling over?
Inspect the cooling system for leaks and verify coolant hose clips are tightened to 2.5 to 3.5 N•m as shown on page 55. Replace aging coolant hoses every 2000h according to the maintenance intervals on page 32 to prevent pressure loss and overheating.
How quickly can I access this manual after buying?
Instant PDF download. You get the full 403-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Is this Service Manual printable?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Does this Service Manual have electrical diagrams?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
Reviews
There are no reviews yet.