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This manual should be kept in or near the machine for reference, and periodically reviewed by all personnel who will come into contact with it. This material is proprietary to Komatsu America Corp (KAC), and is not to be reproduced, used, or dis- closed except in accordance with written authorization from KAC.
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Komatsu is also aware of repair companies that will rework or modify an OEM part for reuse in critical systems. Komatsu does not generally authorize such repairs or modifications for the same reasons as noted above.
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(vehicle serial number), and maximum GVW (Gross Vehicle Weight) rating. The Komatsu truck model designation consists of three numbers and one letter (i.e. 930E). The three numbers represent the basic truck model. The letter E, when present, designates an electrical wheel motor drive system.
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This ALERT symbol is used in this manual, along with the signal words CAUTION, DANGER, and WARNING, to alert the reader to hazards arising from improper operat- ing and maintenance practices. DANGER identifies a specific potential hazard WHICH WILL RESULT in either INJURY OR DEATH if proper precautions are not taken.
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TABLE OF CONTENTS SUBJECT ................SECTION GENERAL INFORMATION .
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KOMATSU MODEL 730E DUMP TRUCK Introduction A00044 Find manuals at https://best-manuals.com...
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SECTION A GENERAL INFORMATION INDEX MAJOR COMPONENTS & SPECIFICATIONS ..........A2 SAFETY AND OPERATING INSTRUCTIONS .
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NOTES A1-2 Index 8/10 A01001 Find manuals at https://best-manuals.com...
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MAJOR COMPONENT DESCRIPTION The Komatsu model 730E standard dump truck is an electric drive, off-highway, rear dump truck with a gross vehi- cle weight of 324 319 kg (715,000 lbs) that is rated for a nominal payload of 185 t (203 tons). Some Trolley ver- sions may have a higher GVW.
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730E MAJOR COMPONENTS 1. Cab 8. Cooling Blower 15.Drive Motors 2. Radiator 9. Cooling Duct 16.Rear Hydrair II® Suspension 3. Reserve Oil 10.Steering Circuit Filter 17.Tires 4. Auto Lube 11.Hoist Circuit Filter 18.Hydraulic Tank 5. Engine 12.Fuel Tank 19.Steering and Brake Circuit Pump 6.
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Number of Cylinders ..... . . 16 Komatsu ....223... . .59 Operating Cycle.
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Capacity: Standard Komatsu Body . 25 612 ..(56,464) Struck ....77 m³ ..101 yds³...
• Before making any modification, consult your understand all hand signals that are to be used. authorized regional Komatsu America Corp. distributor. Komatsu will not be responsible for Truck Safety Features injury damage caused •...
Mounting And Dismounting Fire Extinguishers And First Aid Kits • DO NOT jump on or off the machine. DO NOT • Ensure fire extinguishers climb on or off a machine while it is moving. accessible proper usage techniques • When climbing on or off a machine, face the are known.
• DO NOT use attachments that are not authorized by Komatsu America Corp., or the authorized regional Komatsu distributor. Use of unauthorized attachments could create a safety problem and adversely affect the proper operation and useful life of the machine.
• Ensure a fire extinguisher is present and in tain a Komatsu truck. proper working condition. Safe practices start before the operator gets to the • DO NOT operate the machine near open flames.
Mirrors, Windows, And Lights • Be familiar with all steering and brake system controls, warning devices, road speeds, and • Remove any dirt from the surface of the loading capabilities before operating the truck. windshield, cab windows, mirrors, and lights. Good visibility may prevent an accident.
Truck Operation - General • Apply the parking brake when the truck is parked and unattended. DO NOT leave the truck • Wear seat belts at all times. unattended while the engine is on. • Only authorized persons are allowed to ride in •...
Traveling On Slopes Driving Near High-Voltage Cables • Driving near high-voltage cables can cause • Traveling on slopes could result in the machine electric shock. Maintain the safe distances tipping over or slipping. between the machine and the electric cable, as •...
WORKING NEAR BATTERIES Working On Loose Ground • Avoid operating machine near cliffs, Battery Hazard Prevention overhangs, and deep ditches. If these areas • Battery electrolyte contains sulfuric acid and can collapse, the machine could fall or tip over and quickly burn the skin and eat holes in clothing.
Jump-Starting With Booster Cables Jump Starting With Receptacles • Always wear safety glasses or goggles when • Always wear safety glasses or goggles when starting the machine with booster cables. starting the machine with booster cables. • While jump starting with another machine, DO •...
Perform this work with two people. One person must sit in The Komatsu body-up safety cable can only be the operator's seat to stop the engine, if used with a Komatsu body. Non-OEM body may necessary.
DURING MAINTENANCE Rules To Follow When Adding Fuel Or Oil • Spilled fuel and oil may cause slipping. Clean up Personnel spills immediately. • Only authorized personnel may service and • Tighten the fuel cap and the oil cap securely. repair the machine.
Precautions With The Battery Maintenance Near High Temperatures And High Pressures • When repairing electrical system, • Immediately after stopping, the when welding, engine coolant and operating remove the negative (-) oils are at high temperature and terminal of the battery to may be pressurized.
TIRES The tire inflation pressure and permissible speeds, given in this manual, are general values. The actual Handling Tires values may differ, depending on the type of tire and the specific operating conditions. For details, please Rim and tire maintenance can be hazardous unless the consult the tire manufacturer.
No Entry and other warning signs. injury, or even death. When performing such mainte- nance, consult your authorized regional Komatsu dis- • Stand the tire on level ground, and block it tributor, or the tire manufacturer.
ADDITIONAL JOB SITE RULES Use this space to add any additional job site rules not covered in any of the previous discussions. • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ • _______________________________________________________________________________________ •...
DO NOT allow welding current to 2. Many components on the Komatsu truck are pass through the ball bearings, roller bearings, large and heavy. Ensure that the lifting equip- suspensions, or hydraulic cylinders.
Operators or technicians must be qualified to operate or maintain a Komatsu truck. 3. Move behind the front left tire. Check the hub and brake assemblies for leaks, and any abnor- Safe practices start before the operator gets to the mal wear or signs of damage.
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8. Move behind the rear of the front wheel. Ensure 14. Move to the rear of the dual tires. Check for and the suspension protective boot is in good condi- remove any rocks lodged between the dual tion. Verify all suspension (6, Figure 3-3) attach- tires.
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20. Move behind the rear right side dual tires. 25. Move outboard of the front wheel, and inspect Check for and remove any rocks lodged the attaching lugs/wedges to ensure they are between the dual tires. To prevent tire damage, properly tightened.
ENGINE START-UP 31. Check the coolant in the radiator using the coolant level sight gauge, or observe the coolant level 1. Ensure all personnel are clear of the truck through the opening in the end of the hood. before starting the engine. Sound the horn as a warning before actuating any operational con- If it is necessary to remove the radiator cap, shut trols.
AFTER ENGINE HAS STARTED NOTE: If the truck is equipped with an engine prelube system, a noticeable time delay will occur 1. Become thoroughly familiar with the steering (while the engine lube oil passages are being filled) and emergency controls. After the engine has before the starter engages.
6. Check the hydraulic tank oil level while the Pre-Operation Testing engine is on. NOTE: Komatsu recommends that operators perform a. If the oil level is visible in center of the lower this test to verify that the steering accumulator...
MACHINE OPERATION SAFETY 8. Turn the steering wheel from stop to stop. The PRECAUTIONS front wheels must turn fully to the left and to the right. Eventually, the low steering pressure After the truck engine is started and all the systems are warning light will illuminate and the warning functioning properly, the operator must follow all the buzzer will sound.
HAULING 7. Check the parking brake periodically during the shift while the truck is stopped. Use the parking 1. Stay alert! Drive with extreme caution. Cab doors brake only for parking. DO NOT use the parking must remain closed at all times if the truck is in brake for loading/dumping.
11. When the maximum truck speed is reached, To Raise The Dump Body: haul trucks equipped with Statex III w/fuel enhancement (fuel saver) system will experi- ence a decrease in engine rpm. NOTE: This is different from trucks equipped with Dumping certain types of material can result in Statex II or Statex III without fuel enhancement, sudden and violent movement of the truck.
To Lower The Dump Body: To Lower The Dump Body (When dumping over a berm or into a crusher): (When dumping on flat ground): 8. Move the hoist lever forward to the DOWN posi- 9. It is very likely when dumping on flat ground tion and release.
TOWING 4. Ensure that the tow bar has adequate strength (approximately 1.5 times the empty vehicle weight of truck being towed). Install tow bar between the two vehicles. 5. Block the wheels on the tow vehicle to prevent movement while preparing the disabled truck for Before towing a truck, many factors must be towing.
SAFE PARKING PROCEDURES DELAYED ENGINE SHUTDOWN PROCEDURE The operator must continue the use of safety precau- tions when preparing for parking and engine shutdown. Refer to Section N, Operator Cab and Controls, for identification of the various switches and indicator In the event that the equipment is being worked in lights.
SUDDEN LOSS OF POWER 7. Turn the key switch to the OFF position to allow the engine to turn off when the timing sequence If the engine suddenly stops, there is enough hydrau- is complete. When the engine stops after the lic pressure stored in the brake and steering accumu- idle period, the hydraulic bleed-down timer will lators to allow the operation of the steering and brake...
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NOTES A3-34 General Safety & Operation A03048...
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FC - Character positions 10 and 11 identify the Fac- model number, maximum Gross Vehicle Weight tory Code (FC). The FC identifies the Komatsu fac- (GVW), and Product Identification Number (PIN). tory in charge of claims for the product. The FC for electric drive trucks is 61.
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A plate attached to the right rear corner of the cab states the Rollover Protective Structure (ROPS) and Falling Object Protective Structure (FOPS) meet vari- ous SAE performance requirements. DO NOT make modifications to the ROPS compo- A grade/speed plate is located on the left front post of nents.
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