Searching for exact replacement numbers for your Yanmar engine? This 40-page Yanmar 3TNV70-STB, TB014, TB016, 3TNV70- STB parts catalog pdf breaks down every assembly on these specific compact excavator powerplants. You get clear exploded views of the entire cylinder block, fuel injection pump, and cooling water system, showing exactly how each component fits together. Inside, detailed parts lists map out every individual gasket, O-ring, and mounting bolt holding the gear housing and flywheel assembly intact. Verify you are ordering the correct 0.25 oversize piston assembly and match it with the exact 0.25 undersize main metal bearings before you even begin tearing down the short block. Downtime drains profits fast. Grab this bookmarked file, locate your part numbers instantly on your tablet, and get your parts order submitted today.
What's Inside This Yanmar 3TNV70-STB Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | Block Assembly, Plugs, Bolts, Bushings, Main Bearing Set |
| Gear Housing | 6-7 | Case, Studs, Covers, Oil Seal, O-Rings, Bolts |
| Flywheel Housing & Oil Sump | 8-9 | Housing, Bolts, Oil Seal, Sump Assembly, Gasket |
| Cylinder Head & Bonnet | 10-11 | Head Assembly, Valve Guide, Valve Stem Seal, Rocker Arm, Gasket |
| Air Cleaner | 12-13 | Hose, Cleaner Assembly, Element, Unloader Valve, Bracket, Clamps |
| Exhaust Manifold & Silencer | 14-15 | Manifold, Gasket, Stud, Bolt, Silencer |
| Camshaft & Driving Gear | 16-17 | Tappet, Push Rod, Camshaft Assembly, Idle Gear, Flange |
| Crankshaft & Piston | 18-19 | Crankshaft Assembly, Flywheel Assembly, Piston Assembly, Connecting Rod, Bearings |
| Lub Oil System | 20-21 | Dipstick, Oil Filter, Oil Pipe Assembly, Joint Bolt, Seal Washer |
| Cooling Water System | 22-23 | Water Pump, Thermostat, Radiator, Fan, V-Belt |
| Fuel Injection Pump | 24-25 | Fie Assembly, Plunger, Delivery Valve, Rack Control, Ball Bearing |
| Governor | 26-27 | Case, Control Lever, Spring, Weight Assembly, Limiter |
| Fuel Injection Valve | 28-29 | Valve Assembly, Nozzle, Injection Pipe, Return Pipe, Check Valve |
| Fuel Line | 30-31 | Fuel Strainer, Fuel Pump, Water Separator, Bend Assembly |
| Starting Motor | 32-33 | Starter Assembly, Armature, Clutch, Housing, Bearings |
| Generator | 34-35 | Alternator, Rotor, Frame, Pulley, Regulator |
| Gasket Set | 36-37 | Cylinder Head Gasket, O-Rings, Seal Washers, Liquid Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bearing, Thrust (Oversize) | 0.25S | p. 5 |
| Main Metal (Undersize) | 0.25US | p. 5 |
| Piston Assembly (Oversize) | 0.25 | p. 19 |
| Ring Set (Oversize) | 0.25 | p. 19 |
| Bearing, Pin (Undersize) | 0.25 | p. 19 |
| Pressure Switch (Lub Oil System) | 0.5KG | p. 21 |
| V Belt Size (Cooling Water System) | A 35 | p. 23 |
| Radiator Cap Pressure (Cooling Water System) | 0.9KG/CM2 | p. 23 |
| Timer (Generator) | 1 SEC. | p. 35 |
Yanmar 3TNV70-STB Common Problems This Manual Covers
Yanmar 3TNV70-STB overheating under load, need radiator and water pump replacement part numbers p. 22
Review the cooling water system parts diagram on page 22. Identify the correct water pump and radiator part numbers for your serial range. Verify you order the A 35 V-belt and a 0.9KG/CM2 radiator cap listed on page 23 to complete the repair.
Manual Section: Cooling Water SystemOil pressure warning light stays on during operation or knocking noise from block p. 20
Inspect the lub oil system breakdown on page 20 to find the exact oil filter and pipe assembly part numbers. Locate the 0.5KG pressure switch on page 21 and confirm its part number matches your specific engine variant before ordering replacements.
Manual Section: Lub Oil SystemExcessive blow-by and white smoke from exhaust, need oversize piston kit part numbers p. 18
Check the crankshaft and piston parts list on page 18. Find the standard and oversize piston assemblies for your block. Order the 0.25 oversize piston assembly and matching 0.25 ring set detailed on page 19 to rebuild the cylinder correctly.
Manual Section: Crankshaft & PistonBattery not charging during operation and starting motor cranks over very slowly p. 34
Examine the generator exploded view on page 34 to identify the alternator frame, rotor, and regulator components. Locate the correct 1 SEC. timer part number on page 35 to ensure the electrical charging system operates exactly to factory specifications.
Manual Section: GeneratorFrequently Asked Questions
How do you fix yanmar 3TNV70-STB overheating under load, need radiator and water pump replacement part numbers?
Review the cooling water system parts diagram on page 22. Identify the correct water pump and radiator part numbers for your serial range. Verify you order the A 35 V-belt and a 0.9KG/CM2 radiator cap listed on page 23 to complete the repair.
How do you fix oil pressure warning light stays on during operation or knocking noise from block?
Inspect the lub oil system breakdown on page 20 to find the exact oil filter and pipe assembly part numbers. Locate the 0.5KG pressure switch on page 21 and confirm its part number matches your specific engine variant before ordering replacements.
How do you fix excessive blow-by and white smoke from exhaust, need oversize piston kit part numbers?
Check the crankshaft and piston parts list on page 18. Find the standard and oversize piston assemblies for your block. Order the 0.25 oversize piston assembly and matching 0.25 ring set detailed on page 19 to rebuild the cylinder correctly.
How do you fix battery not charging during operation and starting motor cranks over very slowly?
Examine the generator exploded view on page 34 to identify the alternator frame, rotor, and regulator components. Locate the correct 1 SEC. timer part number on page 35 to ensure the electrical charging system operates exactly to factory specifications.
What do I get after purchasing this Yanmar 3TNV70-STB, TB014, TB016, 3TNV70?
You get a 40-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Am I able to print pages from this Yanmar 3TNV70-STB, TB014, TB016, 3TNV70?
Yes — the PDF is DRM-free, so you can print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Reviews
There are no reviews yet.