Complete workshop & service manual with electrical wiring diagrams for New Holland Wheel Loader W230. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.
This New Holland Wheel Loader W230 service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.
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SAFETY RULES.... pag. 1
TECHNICAL FEATURES OF WHEELED LOADER W230 EVOLUTION .... pag. 8
TABLE OF FLUID CAPACITIES .... pag. 11
UNITS OF MEASURE USED IN THE MANUAL ....pag. 12
TORQUE TABLES....pag. 13
ENGINE .... Section 1
TRANSMISSION.... Section 2
BRAKES SYSTEM .... Section 3
STEERING SYSTEM .... Section 4
BUCKET BOOMS AND FRAME .... Section 5
EQUIPMENT HYDRAULIC SYSTEM .... Section 6
ELECTRICAL SYSTEM .... Section 7
CAB .... Section 8
EQUIPMENT HYDRAULIC SYSTEM
Fig. 6-20 Pilot valve
The control system of the control valve is of a power assisted type with different levers for the functions: booms lowering/raising and bucket roll-back/dumping.
The control valve spools are actuated by hydraulic connections. The circuit pressure (30 bar) is ensured by a pressure relief valve equipped with an hydraulic accumulator.
It is possible to install, upon request, a third lever controlling a third spool of the control valve, in case it becomes necessary to mount a special type of equipment requiring a third hydraulic function.
A questo proposito, il supporto in cabina é predisposto a ricevere la terza leva di comando.
The piloting system of the control valve is equipped with a safety device allowing its cuttingoff. Actuate the cut-off device to lock the control levers in neutral position when the equipment is not in use.
6.4.2 PILOT VALVE
The pilot valve is of a modular type and is composed of two valve assemblies connected by two screws. If the booms or the bucket lever is actuated, the plunger of the pilot valve moves to direct pressurised oil to the port of the equipment control valve selected, moving the corresponding spool.