Part of the Yanmar Parts Manuals.
All 126 pages of this Yanmar B27-2A Parts Catalog (OEM #000Y00S3480) focus on one machine: the B27-2A Crawler Backhoe Excavator, covering all four variants including B27-2A-CR-AY-1, B27-2A-C-AY-1, B27-2A-PR-AY-1, and B27-2A-P-AY-1. You get exploded-view diagrams with OEM part numbers for every assembly, from fuel tank and accelerator linkage to the hydraulic oil pump, remote control joystick, and all five cylinder assemblies. A wiring diagram is included for the electrical harness, and the hydraulic system (oil pump, cylinders, valves, and lines) is broken out in exploded views so you can trace the fluid circuit part by part. Factory component dimensions are locked in throughout: the arm/bucket link shim set measures 42 x 25.5 x 0.5mm, the work lamp calls for a 24V-6W bulb, and the electrical circuit runs a 15A fuse. Stop ordering the wrong part because you couldn't pin down the number. Bookmarked by section; search any assembly by keyword and land on the right exploded view in seconds.
Other edition of this manual
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Label | 7-8 | Accelerator, P.T.O., Air Cleaner, Fuel, Starter Switch, Radiator |
| Muffler | 9-10 | Pipe, EXH.EXTENTION, Clamp, Washer, Spring Washer, Bolt, Nut |
| Air Cleaner | 11-12 | Hose, Clamp 350, Clamp 70 |
| Accelerator | 13-14 | Lever, Accel, Grip, Cable, ACCEL(S), Joint, Clamp |
| Engine Mount | 15-16 | Absorber, Shock, MOUNT(R), Engine, Bracket, MOUNT(L), Plate |
| Radiator & Heater Parts | 17-18 | Mount, Radiator, Pipe, C.W., Radiator Sub-Assy, Sub-Tank Assy, Joint, COOL.WTR.PIPE |
| Fuel Tank & Fuel Line | 19-24 | Tank Assy, Fuel, Gauge Unit, Cap, Fuel Tank, Strainer, Fuel Inlet |
| Electric Part | 25-28 | Wiring |
| Work Lamp | 29-30 | Wire, Lamp, Work, Bulb 15V-60W, Band, Cover |
| Heater | 31-34 | Joint, Valve, Miniature, Switch, Connector PT3/8-M16 |
| Control Equipment | 35-52 | Lever Stand, Drive, Swing, Blade, Cut Off Lever & L, P.T.O. Control |
| Seat Mount | 53-54 | Lever Lock, Hook Comp. Key, Bonnet, Plate Catch, Washer |
| Bonnet | 55-56 | Roof Comp. Canopy, Column R, Column L, Canopy F Comp., Spring Washer, Bolt |
| Canopy | 57-60 | Roof Comp. Canopy, Column R, Column L, F Comp., Spring Washer, Bolt |
| Hyd. Oil Pump & Joint | 61-62 | Cover Flywheel, Coupling, Shaft Assy. Rocker, Piston Assy. Control |
| Boom Cylinder | 63-64 | |
| Arm Cylinder | 65-66 | |
| Bucket Cylinder | 67-68 | Cylinder Assy, Tube Assy, Rod Assy, Head, Piston, Seal Kit |
| Swing Cylinder | 69-70 | Cylinder Assy, Tube Assy, Rod Assy, Head, Piston, Seal Kit |
| Blade Cylinder | 71-88 | Cylinder Assy, Tube Assy, Rod Assy, Head, Piston, Seal Kit |
| Remote Control | 89-94 | Joy-Stick, Valve Assy, Section Set, Spool, Cable, Handle |
| Hyd. Oil Tank | 95-99 | Joint, Clamp, O-Ring, Connector, Flange, Hose |
| Hyd. Oil Piping | 100-113 | Tank-Pump-Valve, Valve-Motor, Boom, Valve-Swivel, Swing, Return, P.T.O Valve, Frame |
| Control Piping | 114-117 | Remote Control Valve, Hyd. Oil Pump, Swivel Joint, Control Valve |
| Boom & Boom Bracket | 118-121 | Boom Assy, Bush, Seal, Pin, Spacer, Bracket |
| Arm & Bucket Link | 122 | Spacer, Shim Set, Pin 38, Blade, Seal, Dust, Pin |
| Blade | 123-126 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse Rating | 15A | p. 26 |
| Bulb Voltage/Wattage | 24V- 6W | p. 26 |
| Spacer Dimensions | 75mm x 2.6mm | p. 31 |
| Wire Dimensions | 1.6mm x 170mm | p. 31 |
| Shim Dimensions | 42mm x 25.5mm x 0.5mm | p. 35 |
| O-Ring Dimensions | 27mm x 5.7mm | p. 37 |
| Spring Pin Dimensions | 5mm x 32mm | p. 35 |
| Grommet Dimensions | 16mm x 20mm x 4.5mm | p. 24 |
| Seal Dimensions | 45mm x 55mm x 4mm | p. 62 |
