If you run a Komatsu WB146 backhoe loader in -5 or PS-5 configuration, this 258-page Komatsu WB146 operator manual PDF (factory publication CEAM016605) matches your machine. The maintenance schedule runs from the initial 50-hour service out to the 2000-hour interval, backed by lubrication diagrams for the main machine, 4-in-1 bucket and telescopic arm, a torque list, and troubleshooting for battery, hydraulics, brakes, transmission and engine. Operation fills roughly a third of the book: every cab control and instrument panel, the fuse and relay layout, backhoe unlocking, the pattern change lever and proven digging methods. Refill the hydraulic tank with 41 l (10.8 gal) and the engine with 9 l (2.4 gal), and check brake pedal stroke against 325 mm (12.8 in). Missed 500-hour services come back as repair bills. Bookmarked by section and text-searchable, your copy travels on a laptop or phone to wherever the WB146 is working.
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|
| Introduction | 3-22 | Foreword, Safety Information (Safety Labels), Approved and Non-Approved Uses (Approved Functions, Non-Approved Functions) |
| Safety | 23-66 | Safety and Warning Decals (Location of Safety Decals, If Abnormalities Are Found, Safety at Job Site) |
| Operation | 67-154 | Operation Controls (in the Cab, Steering Column Switches, Front Instrument Panel and Controls) |
| Maintenance | 155-224 | Maintenance Information (Maintenance Notes, Engine Maintenance, Hydraulic System Maintenance, Carrying Out KOWA, Electrical System Maintenance, Lubrication), Wear Parts List, Fuel |
| Specifications | 225-232 | Machine Dimensions and Weights, Standard Arm, Retracted Telescopic Arm, Extended Telescopic Arm |
| Options, Attachments | 233-258 | Authorized Optional Equipment (Precautions Regarding Safety, Precautions Regarding the Installation of Equipment, Optional Equipment Measurements) |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| All Models |
| Brake pedal stroke measure A | 325 mm (12.8 in) | p. 187 |
| Automatic return sensor distance from sliding rod | 2 - 4 mm (0.078 - 0.157 in) | p. 187 |
| Hydraulic Tank Oil capacity | 41 l (10.8 gal) | p. 206 |
| Engine Oil capacity | 9 l (2.4 gal) | p. 204 |
| Fuel filter tightening | 1/2 to 3/4 of a turn | p. 209 |
| Hydraulic System Oil Capacity | 97 l (25.6 gal) | p. 215 |
| Coolant Capacity | 14L | p. 218 |
| Front Axle Oil Capacity | 7.5L | p. 211 |
| WB146-5 |
| Power Shuttle Transmission Oil Capacity | 20.2 l (5.3 gal) | p. 213 |
| Transmission Oil Capacity (Power Shuttle) | 20.2L | p. 213 |
| WB146PS-5 |
| Power Shift Transmission Oil Capacity | 28.0 l (7.4 gal) | p. 213 |
| Transmission Oil Capacity (Power Shift) | 28.0L | p. 213 |
