Komatsu WA900-3 & WA900-3E0 Accumulator Charge Valve Guide

Product Overview

This comprehensive guide provides detailed instructions for the disassembly and assembly of the accumulator charge valve in Komatsu WA900-3 and WA900-3E0 models. It includes essential information on specifications, standard values, and troubleshooting techniques.

Key Features

• Clear step-by-step disassembly instructions.
• Detailed component descriptions.
• Comprehensive guide to testing and adjusting.
• Standard value table included for accurate referencing.

Benefits

• Facilitates maintenance and repair processes for improved equipment efficiency.
• Helps in identifying and solving common issues with the accumulator charge valve.
• Enhances understanding of component functions and structure.

Usage Recommendations

• Follow each disassembly and assembly step carefully to ensure proper maintenance.
• Refer to the included diagrams and drawings for visual guidance.
• Use the troubleshooting section to address malfunctions promptly.

For a visual reference, view the step-by-step guide image.

Disassembly Steps

1. Remove the PPC relief valve (2) from the valve body (1).
2. Detach the O-rings (3), (5) and the two backup rings (4) from the PPC relief valve.
3. Unscrew plug (6) from the valve body, followed by the spring (7) and spool (8).
4. Take out the O-ring (9) from plug (6).
5. Extract the bushing (10) from the valve body.
6. Remove the snap ring (11), filter (12), and O-ring (13) from the bushing.
7. Unscrew the locknut (14) from the valve body and remove the adjustment screw (15).
8. Take out the retainer (16), spring (17), shim (18), and O-ring (19) from the adjustment screw.
9. Remove plug (20) from the valve body, followed by the retainer (21), piston (22), and valve seat (23).
10. Remove the O-ring (24) from plug (20).
11. Unscrew the locknut (14) from the valve body and remove the adjustment screw (15).
12. Remove the ball (25), spring (26), shim (18), and O-ring (19) from the adjustment screw.
13. Take off plug (27) from the valve body and remove the orifice (28).
14. Extract the snap ring (29) from the valve body and remove the filter (30).