Sumitomo SH160-3 Hydraulic Excavator Repair Service Manual
Sumitomo Excavator SH160-3
Format: PDF
Manual Identification: WLST1605-00T, WCLA160A3
English
Publication: Sumitomo Service Manual
- Sumitomo SH160-3 Hydraulic Excavator Repair Service Manual – 756 Pages
- Parts Catalog – 415 Pages
Extract of the Sumitomo SH160-3 Manual
Negative Control Power Save Control
Model 3 negative control circuit
• Control such that the discharge flow decreases as the negative control pressure increases
This reduces the flow for non-operation, so there is an energy-saving effect.
For non-operation
1) The oil discharged from the pump is boosted to the foot relief set pressure at the negative control metering valve downstream of the control valve and the negative control pressure rises.
2) The pump regulator section servo piston is moved in the direction that is left in the figure to decrease the flow.
This complete maintenance guide is the go-to reference for anyone servicing or repairing heavy machinery. It provides in-depth coverage of all mechanical and electrical systems, with step-by-step repair methods and preventive maintenance instructions. Each page includes technical illustrations and diagnostic charts to help pinpoint faults and correct them efficiently.
The manual is perfect for workshops, field service, or equipment owners who prefer to handle their own maintenance. Following this guide guarantees proper repair techniques and factory-standard adjustments, minimizing downtime and maximizing productivity. With this professional-grade resource, you can extend your machine’s operating life and ensure it performs safely and reliably for years to come.
