Komatsu Wa320-3 Manuals. Shop Manual And Operation Manual This collection contains the following 2 manuals: Komatsu WA320-3 shop manual. 962 page serial number WA320H20051 and up ... 1. Komatsu WA320-3H operation and maintenance manual 2. Komatsu WA320-3 shop manual Download 14.95 USD X The seller macthree offers you 30.0% on each sale!