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E-18 Alarm buzzer does not stop sounding......................................................................... 40- 465
E-19 When starting switch is at OFF position, service meter is not displayed .................... 40- 465
E-20 Machine monitor cannot be set in service mode......................................................... 40- 465
E-21 All of work equipment, swing, and travel mechanism do not move or are not locked . 40- 466
E-22 Swing holding brake does not operate properly.......................................................... 40- 469
E-23 One-touch power max. function does not operate ...................................................... 40- 472
E-24 Travel alarm does not sound or does not stop sounding ............................................ 40- 476
E-25 Horn does not sound or does not stop sounding ........................................................ 40- 478
E-26 Windshield wiper and window washer do not operate ................................................ 40- 480
E-27 "BOOM LOWER" indicator is not displayed properly with monitoring function ........... 40- 482
E-28 "ARM OUT" indicator is not displayed properly with monitoring function .................... 40- 484
E-29 "ARM IN" indicator is not displayed properly with monitoring function ........................ 40- 486
E-30 "BOOM RAISE" indicator is not displayed properly with monitoring function.............. 40- 486
E-31 "BUCKET CURL" indicator is not displayed properly with monitoring function ........... 40- 486
E-32 "BUCKET DUMP" indicator is not displayed properly with monitoring function .......... 40- 487
E-33 "SWING" indicator is not displayed properly with monitoring function ........................ 40- 487
E-34 "TRAVEL" indicator is not displayed properly with monitoring function....................... 40- 488
E-35 "TRAVEL STEERING" indicator is not displayed properly with monitoring function ... 40- 490
E-36 "SERVICE" indicator is not displayed properly with monitoring function..................... 40- 492
E-37 Attachment hydraulic circuit cannot be changed......................................................... 40- 494
E-38 KOMTRAX system does not operate properly ............................................................ 40- 495
Troubleshooting of hydraulic and mechanical system (H-mode) ............................................ 40-496
Information in troubleshooting table (H mode)..................................................................... 40- 498
System diagram of hydraulic and mechanical system......................................................... 40- 496
H-1 Speed or power of all work equipment and travel is low ............................................... 40- 499
H-2 Engine speed lowers significantly or engine stalls........................................................ 40- 501
H-3 All work equipment and travel systems do not work ..................................................... 40- 502
H-4 Unusual noise comes out from around hydraulic pump................................................ 40- 502
H-5 Auto-decelerator does not operate ............................................................................... 40- 503
H-6 Fine control performance or response is low ................................................................ 40- 503
H-7 Speed or power of boom is low..................................................................................... 40- 504
H-8 Speed or power of arm is low ....................................................................................... 40- 505
H-9 Speed or power of bucket is low ................................................................................... 40- 506
H-10 Work equipment does not move in its single operation .............................................. 40- 506
H-11 Hydraulic drift of work equipment is large ................................................................... 40- 507
H-12 Time lag of work equipment is large ........................................................................... 40- 509
H-13 When part of work equipment is relieved singly, other parts of work equipment move 40- 509
H-14 Power maximizing function does not work .................................................................. 40- 510
H-15 In combined operation of work equipment, speed of part loaded more is low ............ 40- 510
H-16 When machine swings and travels simultaneously, travel speed is low ..................... 40- 510
H-17 Machine deviates during travel ................................................................................... 40- 511
H-18 Travel speed is low ..................................................................................................... 40- 512
H-19 Machine is not steered well or sterring power is low................................................... 40- 513
H-20 Travel speed does not shift or travel speed is low or high .......................................... 40- 514
H-21 Travel system does not work (only one side).............................................................. 40- 515
H-22 Upper structure does not swing .................................................................................. 40- 516
H-23 Swing acceleration or swing speed of upper structure is low ..................................... 40- 516
H-24 Upper structure overruns remarkably when it stops swinging .................................... 40- 516
H-25 Large shock is made when upper structure stops swinging ....................................... 40- 517
H-26 Large sound is made when upper structure stops swinging ....................................... 40- 517
H-27 Upper structure lowers largely by its own weight........................................................ 40- 517
Troubleshooting of engine (S-mode) ...................................................................................... 40-518
Method of using troubleshooting chart................................................................................. 40- 518
S-1 Engine startability is poor .............................................................................................. 40- 522
HB205-1, HB215LC-1
(03)
9
Table of Contents
496
518
00-3-6
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