OM1013 11/00 Introduction - Section 1 Page 1-1 FOREWORD This Manual is written for use by the operator and/or service technician and is designed to help these persons to become fully knowledgeable of the truck and all its systems in order to keep it operating safely and efficiently. All operators and maintenance personnel should read and understand the materials in this manual before operat- ing the truck or performing maintenance and/or operational checks on the truck. All safety notices, warnings and cautions should be understood and followed when accomplishing repairs on the truck.
The first section is an Introduction th the manual and contains a Table of Contents to locate specific areas of inter- est. Other sections include Safety, Operation, Maintenance, Specifications, and Optional Equipment. The illustrations used in this manual are, at times, typical of the component shown and may not necessarily depict a specific model. This manual shows dimensioning of U.S. standard and metric (SI) units throughout and all references to "Right", "Left", "Front", or "Rear" are made with respect to the operator's normal seated position, unless specifically stated otherwise.
Standard torque requirements are shown in torque charts in the general information section and individual torques are provided in the text in bold face type, such as 723 kg.m (100 ft.lbs.) torque. All torque specifications have ±10% tolerance unless otherwise specified. A Product Identification plate is normally located on the truck frame upright in front of the left side front wheel and designates the Truck Model Number, Product Identification Number (vehicle serial number), and Maximum G.V.W. (Gross Vehicle Weight) rating. The KOMATSU Haulpak Truck Model designation consists of three numbers and one letter (i.e. 330M). The three numbers represent the basic truck model.
The letter “M” designates a Mechanical drive and the letter “E” designates an Electrical wheel motor drive system. The Product Identification Number (vehicle serial number) contains information which will identify the original man- ufacturing bill of material for this unit. This complete number will be necessary for proper ordering of many service parts and/or warranty consideration. The Gross Vehicle Weight (GVW) is what determines the load on the drive train, frame, tires, and other compo- nents. The vehicle design and application guidelines are sensitive to the total maximum Gross Vehicle Weight (GVW) and this means the total weight :
the Empty Vehicle Weight + the fuel & lubricants + the payload. To determine allowable payload: Service all lubricants for proper level and fill fuel tank of empty truck (which includes all accessories, body liners, tailgates, etc.) and then weigh truck. Record this value and subtract from the GVW rating. The result is the allowable payload. NOTE: Accumulations of mud, frozen material, etc. become a part of the GVW and reduces allowable payload. To maximize payload and to keep from exceeding the GVW rating, these accumulations should be removed as often as practical. Exceeding the allowable payload will reduce expected life of truck components.