Komatsu PC200-8M0 Shop Manual page 881

SEN05990-00
PC200, 200LC, 220, 220LC-8M0
HYDRAULIC EXCAVATOR
Shop Manual
PC200-8M0
PC200LC-8M0
PC220-8M0
PC220LC-8M0
Machine model
PC200-8M0
PC200LC-8M0
PC220-8M0
PC220LC-8M0
40 Troubleshooting
500 Troubleshooting of hydraulic and
mechanical system (H-mode)
System diagram of hydraulic and mechanical system ................................................................................
Failure mode and cause table.....................................................................................................................
Information in troubleshooting table ............................................................................................................
H-1 Speed or power of whole work equipment, swing, and travel is low ....................................................
H-2 Engine speed lowers significantly or engine stalls ............................................................................... 11
H-3 Work equipment, swing, and travel systems do not work .................................................................... 12
H-4 Unusual noise comes out from around hydraulic pump ....................................................................... 13
H-5 Fine control performance or response is low ....................................................................................... 14
H-6 Speed or power of boom is low ............................................................................................................ 15
H-7 Speed or power of arm is low............................................................................................................... 16
H-8 Speed or power of bucket is low .......................................................................................................... 17
H-9 Work equipment does not move in its single operation........................................................................ 18
H-10 Hydraulic drift of work equipment is large .......................................................................................... 19
H-11 Time lag of work equipment is large................................................................................................... 21
H-12 Other work equipment moves when one of work equipment is relieved ............................................ 22
H-13 One-touch power maximizing function does not work........................................................................ 23
H-14 In combined operation of work equipment, equipment having heavier load moves slower. .............. 24
H-15 In combined operation of swing and boom RAISE, boom rising speed is low ................................... 25
PC200, 200LC, 220, 220LC-8M0
Serial number
400001 and up
400001 and up
100001 and up
100001 and up
SEN06139-00
4
6
8
9
1
40-500