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TROUBLESHOOTING H-MODE

20-502

PC58UU-3

H-19 Part loaded more moves slower in compound operation of work equipment ...................... 20-535

H-20 Travel deviation is large .............................................................................................................. 20-536

a) Travel deviation is large during ordinary travel................................................................... 20-536

b) Travel deviation is large when machine starting (but normal during ordinary travel)..... 20-537

H-21 Travel speed or power is low (Work equipment, swing, and blade operations are normal) 20-538

H-22 Machine cannot be steered sharply or steering force is insufficient....................................... 20-539

H-23 Travel speed does not change.................................................................................................... 20-540

H-24 Machine does not travel.............................................................................................................. 20-541

H-25 Overrun of travel is large ............................................................................................................ 20-543

H-26 Travel hydraulic drift is large ...................................................................................................... 20-543

H-27 Fine controllability or response is low ....................................................................................... 20-544

H-28 Swing speed or power is low (Work equipment, travel, and blade operations are normal.. 20-545

a) Swing speed or power is low in both directions ................................................................. 20-545

b) Swing speed or power is low in either direction ................................................................. 20-547

H-29 Machine does not swing (Work equipment, travel, and blade operations are normal) ........ 20-548

a) Machine does not swing in either direction ......................................................................... 20-550

b) Machine does not swing in both directions ......................................................................... 20-550

H-30 Swing acceleration is low ........................................................................................................... 20-551

a) Swing acceleration is low in both directions ....................................................................... 20-551

b) Swing acceleration is low in either direction ....................................................................... 20-551

H-31 Overrun of swing is large............................................................................................................ 20-552

a) Overrun of swing is large in both directions........................................................................ 20-552

b) Overrun of swing is large in either direction........................................................................ 20-552

H-32 Large shock is made when machine stops swinging ............................................................... 20-553

H-33 Large abnormal sound is made when machine stops swinging ............................................. 20-553

H-34 Swing hydraulic drift is large...................................................................................................... 20-553

H-35 Fine controllability or response of swing is low ....................................................................... 20-554

H-36 Blade speed or power is low (Work equipment, travel, and swing operations are normal). 20-555

H-37 Blade does not move (Work equipment, travel, and swing operations are normal) ............. 20-556

a) Blade does not raise ............................................................................................................... 20-556

b) Blade does not lower.............................................................................................................. 20-557

H-38 Hydraulic drift of blade is excessive........................................................................................... 20-558

H-39 Fine controllability is poor or response of blade is low ........................................................... 20-558

H-40 Monitor panel displays error code [61] and boom RAISE, arm IN, and LEFT offset

operations stop just before interference.................................................................................... 20-559

H-41 Machine does not stop boom RAISE, arm IN, and LEFT offset operations

automatically but interferes ........................................................................................................ 20-559

Komatsu PC58UU-3 User Manual

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