Komatsu Wheel Loader WA30, WA40, WA50 Factory Service & Shop Manual Price listed in US Dollar: $29.99 Complete workshop & service manual with electrical wiring diagrams for Komatsu Wheel Loader WA30-5, WA40-1, WA50-3, WA50-6. Read more about Komatsu Wheel Loader WA30, WA40, WA50 Factory Service & Shop Manual