Komatsu Hydraulic Excavator PC1800-6 Operation & Maintenance Manual

Page 201

OPERATION

MACHINE OPERATIONS AND CONTROLS

WORK EQUIPMENT CONTROLS AND OPERATIONS WARNING ●

If the lever is operated when the auto-deceleration is being actuated, the engine speed will suddenly rise, so be careful when operating the lever.

If the work equipment control lever is operated quickly, the work equipment will move quickly; if the lever is operated slowly, the work equipment will move slowly.

The work equipment is operated by the left and right work equipment control levers.The left work equipment control lever operates the arm and swing, and the right work equipment control lever operates the boom and bucket.

Arm out

Swing operation

Swing right Swing left

The movements of the lever and work equipment are as shown in the diagrams on the right.When the levers are released, they automatically return to the neutral position and the work equipment is held in place. ●

Arm operation

Arm in

When the machine is at a standstill, and the work equipment levers are put in neutral, the engine speed is kept at medium speed due to the function of the auto-deceleration, even if the fuel control dial is set at the MAX position.

REMARK If the levers are operated within 15 seconds after stopping the engine, it is possible to lower the work equipment to the ground. In addition, the levers can also be operated to release any remaining pressure inside the hydraulic cylinder circuit and to lower the boom after loading the machine on a trailer.

Boom raise

Boom operation

Boom lower

Bucket operation

Bucket dump Bucket curl

3-147


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DISASSEMBLING MACHINE

1min
page 367

PRECAUTIONS DURING OPERATION

2min
pages 362-366

OPERATIONS

1min
page 360

EXPLANATION OF COMPONENTS

1min
pages 358-359

CONTROL DEVICES

1min
pages 352-354

PROTECTIVE GUARD

1min
pages 350-351

ATTACHMENT GUIDE

1min
page 349

PRECAUTIONS WHEN INSTALLING ATTACHMENTS

1min
page 348

GENERAL PRECAUTIONS

2min
pages 346-347

MAINTENANCE PROCEDURE MAINTENANCE

25min
pages 304-335, 337-340, 342-343

INSPECT SEALANT AROUND ENGINE COOLING SYSTEM

17min
pages 278-303

MAINTENANCE PROCEDURE MAINTENANCE

11min
pages 262-277

MAINTENANCE PROCEDURE

6min
pages 255-261

TIGHTENING TORQUE SPECIFICATIONS

1min
page 248

LUBRICANTS, COOLANT AND FILTERS

5min
pages 239-242

MAINTENANCE INFORMATION

3min
pages 236-238

DISCHARGED BATTERY

8min
pages 225-231

TROUBLESHOOTING

3min
pages 222-224

LONG TERM STORAGE

1min
pages 220-221

COLD WEATHER OPERATION

3min
pages 217-219

PARKING MACHINE

1min
pages 212-216

TRAVELING ON SLOPES

5min
pages 206-211

WORK EQUIPMENT CONTROLS AND OPERATIONS

3min
pages 201-205

STARTING ENGINE

14min
pages 178-200

MACHINE OPERATIONS AND CONTROLS

15min
pages 157-177

HANDLING ACCUMULATOR

1min
pages 155-156

CONTROLLER (COMPUTER)

3min
pages 150-154

CAR RADIO

7min
pages 141-149

HANDLING AIR CONDITIONER

4min
pages 133-140

CONTROL LEVERS, PEDALS

5min
pages 126-132

SWITCHES

9min
pages 111-125

EXPLANATION OF COMPONENTS OPERATION

14min
pages 96-110

EXPLANATION OF COMPONENTS OPERATION

11min
pages 76-95

CGC MONITOR

1min
pages 73-75

MONITOR SWITCHES

1min
pages 71-72

METER DISPLAY PORTION

3min
pages 67-70

EXPLANATION OF COMPONENTS

4min
pages 59-66

SAFETY MAINTENANCE INFORMATION

7min
pages 47-55

LIFTING OBJECTS WITH BUCKET

1min
page 46

SAFETY MACHINE OPERATION

11min
pages 34-45

SAFETY INFORMATION

12min
pages 25-33

POSITION FOR ATTACHING SAFETY LABELS

1min
pages 20-24

POSITION FOR ATTACHING SAFETY LABELS

1min
page 18

SAFETY INFORMATION

2min
pages 5-6

FOREWORD

1min
page 4
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