SEN04065-07
PC27MR-3, PC30MR-3, PC35MR-3 00-100 7
Table of contents
100 Index
E-12 2nd travel speed is not selected ........................................................................................................... 56
E-13 Working lamp does not light up............................................................................................................. 60
E-14 When work equipment lock (PPC basic pressure lock) lever is set in LOCK,
work equipment still moves .................................................................................................................. 64
E-15 Windshield wiper does not operate....................................................................................................... 68
E-16 Windshield washer does not operate.................................................................................................... 72
E-17 Defective air conditioner ....................................................................................................................... 75
E-18 KOMTRAX system does not operate normally .................................................................................... 83
300 Troubleshooting of hydraulic and mechanical system (H-mode) SEN04384-00
Information contained in troubleshooting table.............................................................................................. 3
H1 Speed or power of whole work equipment, travel, swing, and blade is low............................................. 4
H-2 Engine speed lowers extremely or engine stalls..................................................................................... 8
H-3 Whole work equipment, travel system, swing system, and blade do not work....................................... 9
H-4 Abnormal sound comes out from around hydraulic pump...................................................................... 13
H-5 Fine control performance or response is low.......................................................................................... 13
H-6 Speed or power of boom is low............................................................................................................... 14
H-7 Speed or power of arm is low ................................................................................................................. 15
H-8 Speed or power of bucket is low............................................................................................................. 16
H-9 Speed or power of boom swing is low .................................................................................................... 17
H-10 Work equipment does not move singly................................................................................................. 17
H-11 Work equipment hydraulic drift is large................................................................................................. 18
H-12 Time lag of work equipment is large..................................................................................................... 20
H-13 In compound operation of work equipment, speed of part loaded more is low..................................... 20
H-14 Machine deviates during travel............................................................................................................. 21
H-15 Travel speed or travel power is low (while work equipment is normal)................................................. 23
H-16 Machine is not steered well or steering power is low............................................................................ 24
H-17 Travel speed does not change.............................................................................................................. 25
H-18 Travel motor does not work .................................................................................................................. 26
H-19 Speed or power of swing is low ............................................................................................................ 28
H-20 Machine does not swing....................................................................................................................... 30
H-21 Swing acceleration performance is low ................................................................................................ 32
H-22 Machine overruns when it stops swinging............................................................................................ 34
H-23 Large shock is made when machine stops swinging............................................................................35
H-24 When upper structure stops swinging, it makes large sound ............................................................... 35
H-25 Hydraulic drift of swing is large............................................................................................................. 36
H-26 Speed or power of blade is low............................................................................................................. 37
H-27 Blade does not move............................................................................................................................ 38
H-28 Hydraulic drift of blade is large ............................................................................................................. 39
400 Troubleshooting of engine (S-mode) SEN04385-00
Method of using troubleshooting charts......................................................................................................... 3
S-1 Starting performance is poor................................................................................................................... 6
S-2 Engine does not start.............................................................................................................................. 7
S-3 Engine does not pick up smoothly.......................................................................................................... 10
S-4 Engine stops during operations .............................................................................................................. 11
S-5 Engine does not rotate smoothly ............................................................................................................ 12
S-6 Engine lacks output (or lacks power)...................................................................................................... 13
S-7 Exhaust smoke is black (incomplete combustion).................................................................................. 14
S-8 Oil consumption is excessive (or exhaust smoke is blue)....................................................................... 15
S-9 Oil becomes contaminated quickly ......................................................................................................... 16
S-10 Fuel consumption is excessive............................................................................................................. 17
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down).................................................... 18
S-12 Oil pressure drops................................................................................................................................. 19
S-13 Oil level rises (Entry of coolant/fuel) ..................................................................................................... 20
S-14 Coolant temperature becomes too high (overheating).......................................................................... 21
S-15 Abnormal noise is made ....................................................................................................................... 22
S-16 Vibration is excessive ........................................................................................................................... 23
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