A00040 8/06 Introduction A - Komatsu 830E-AC Shop Manual

FOREWORD
This Shop Manual is written for use by the service technician and is designed to help the technician become fully
knowledgeable of the truck and all its systems in order to keep it running and in production. All maintenance per-
sonnel should read and understand the materials in this manual before performing maintenance and/or operational
checks on the truck. All safety notices, warnings and cautions should be understood and followed when accom-
plishing repairs on the truck.
The first section covers component descriptions, truck specifications and safe work practices, as well as other gen-
eral information. The major portion of the manual pertains to disassembly, service and reassembly. Each major
serviceable area is dealt with individually. For example: The disassembly, service and reassembly of the radiator
group is discussed as a unit. The same is true of the engine and engine accessories, and so on through the entire
mechanical detail of the truck. Disassembly should be carried only as far as necessary to accomplish needed
repairs.
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 metric (SI) and U.S. standard 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 135 N·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 in front of the right side front wheel and desig-
nates the Truck Model Number, Product Identification Number (vehicle serial number), and Maximum G.V.W.
(Gross Vehicle Weight) rating.
The KOMATSU Truck Model designation consists of three numbers and one letter (i.e. 830E). The three numbers
represent the basic truck model. The letter "E" designates an Electrical propulsion 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.
A00040 8/06 Introduction A-1