SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Troubleshooting
7 Troubleshooting

Shop Manual - June 2013 7-1

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

WARNING
Read and understand all safety precau-
tions and instructions in this manual be-
fore reading any other manuals provided
with this machine and before operating or
servicing the machine. Also read the safety
information on machine decals before per-
forming any operations. Failure to do so
can cause machine damage, personal in-
jury or death.

7-2 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7 TROUBLESHOOTING

7.1 Points to Remember When Troubleshooting

Shop Manual - June 2013 7-3

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7-4 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7.2 Troubleshooting Procedures

1. Read related technical manuals in detail.

Have a knowledge of related system,
principle of operation, and structure,
function and technical specification of
parts.

2. Ask operator

3. Check before starting

Shop Manual - June 2013 7-5

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Item Criterion Remedy

7-6 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

4. Operate machine by yourself (trial run)

5. Perform troubleshooting

6. Find out possible causes

Remark:

Shop Manual - June 2013 7-7

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3 Connector Location and Electrical Circuit Diagram

Location
Connec- No. of Sensor,
Type Name of device Cab Engine
tor No. pin Layout solenoid
circuit circuit
circuit

7-8 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Location
Connec- No. of Sensor,
Type Name of device Cab Engine
tor No. pin Layout solenoid
circuit circuit
circuit

Shop Manual - June 2013 7-9

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Location
Connec- No. of Sensor,
Type Name of device Cab Engine
tor No. pin Layout solenoid
circuit circuit
circuit

7-10 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Connector code Description

Shop Manual - June 2013 7-11

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3.1 Connector location layout

7-12 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-13

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7-14 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-15

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7-16 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-17

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3.2 Electrical element circuit diagram (cab circuit)

7-18 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-19

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3.3 Electrical control circuit diagram (engine circuit)

7-20 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-21

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3.4 Electrical control circuit diagram (sensor and solenoid valve circuit)

7-22 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7.3.5 SWP type connector

Shop Manual - June 2013 7-23

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.3.6 A/AMP type connector

7-24 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7.3.7 DT type connector

Shop Manual - June 2013 7-25

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.4 Failure Symptoms and Troubleshooting Codes

Troubleshooting
No. Symptom
Code E mode H mode (Engine)
Action to be taken concerning Service Code, User Code and Failure Code

Engine-related failure

Failure related to work equipment, swing and travel

Work equipment-related failure

7-26 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Troubleshooting
No. Symptom
Code E mode H mode (Engine)

Travel-related failure

Swing-related failure

Monitor panel-related failure

Other failure

Shop Manual - June 2013 7-27

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7.5 Troubleshooting with an Event Code

7-28 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Information in troubleshooting table

Cause Standard value in normal state and remarks on troubleshooting

Related circuit diagram

Shop Manual - June 2013 7-29

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E111 (controller memory failure (FROM))

Cause Standard value in normal state/Remarks on troubleshooting

7-30 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E212 (throttle motor current & motor connection abnormal)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-31

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E213 (throttle motor operation suspends)

Cause Standard value in normal state/Remarks on troubleshooting

7-32 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E214 (throttle motor working range abnormal)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-33

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E015 (power supply voltage abnormal)

Cause Standard value in normal state/Remarks on troubleshooting

- + - +

7-34 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E116 (controller internal temperature abnormal)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-35

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E017 (abnormal output of 5v power supply in sensor)

Cause Standard value in normal state/Remarks on troubleshooting

7-36 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E118 (abnormal communication between controller and monitor)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-37

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E320 (abnormality in front pump output pressure)

Cause Standard value in normal state/Remarks on troubleshooting

7-38 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E321 (abnormality in rear pump output pressure)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-39

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E322 (abnormality in arm-in pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

7-40 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E323 (abnormality in arm-out pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-41

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E324 (abnormality in boom-raise pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

7-42 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E325 (abnormality in boom-lower pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-43

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E326 (abnormality in bucket-curl pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

7-44 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E327 (abnormality in bucket-dump pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-45

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E328 (abnormality in swing pilot pressure

Cause Standard value in normal state/Remarks on troubleshooting

7-46 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E329 (abnormality in left travel pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-47

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E330 (abnormality in right travel pilot pressure)

Cause Standard value in normal state/Remarks on troubleshooting

7-48 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E231 (abnormality in fuel control dial set voltage)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-49

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E237 (abnormality in hydraulic oil temperature)

Cause Standard value in normal state/Remarks on troubleshooting

7-50 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E541 (abnormality in engine speed)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-51

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E450 (abnormality (a) in front pump proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

7-52 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E450 (abnormality (b) in front pump proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-53

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E451 (abnormality (a) in rear pump proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

7-54 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E451 (abnormality (B) in rear pump proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-55

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E452 (abnormality (A) in swing priority proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

7-56 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E452 (abnormality (B) in swing priority proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-57

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E453 (abnormality (A) in bucket confluence proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

7-58 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E453 (abnormality (B) in bucket confluence proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-59

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E455 (abnormality (A) in boom priority 2 proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

7-60 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E455 (abnormality (B) in boom priority 2 proportional solenoid coil current)

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-61

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E460 (abnormality in dual speed travel solenoid valve)

Cause Standard value in normal state/Remarks on troubleshooting

7-62 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7.6 Troubleshooting of Electrical System (E - Mode)

Shop Manual - June 2013 7-63

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Information in troubleshooting table

Cause Standard value in normal state and remarks on troubleshooting

Related circuit diagram

7-64 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-1 Engine does not start

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-65

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7-66 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-2 Engine runs rough or is unstable

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-67

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-3 Power supply of machine cannot be cut off

Cause Standard value in normal state/Remarks on troubleshooting

7-68 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-69

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-4 Auto idle not functioning

Cause Standard value in normal state/Remarks on troubleshooting

7-70 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-5 Preheating function fails

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-71

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-6 Work equipment does not work

Cause Standard value in normal state/Remarks on troubleshooting

7-72 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-7 Boom-raise speed or power is low

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-73

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-8 Arm speed or power is low

Cause Standard value in normal state/Remarks on troubleshooting

7-74 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-9 Bucket speed or power is low

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-75

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

7-76 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-10 Travel speed or power is low

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-77

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-11 Blank monitor display

Cause Standard value in normal state/Remarks on troubleshooting

7-78 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-12 Monitor displays nothing

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-79

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-13 Dual speed travel not functioning

Cause Standard value in normal state/Remarks on troubleshooting

7-80 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-14 Incorrect engine coolant reading

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-81

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-15 Incorrect fuel level reading

Cause Standard value in normal state/Remarks on troubleshooting

7-82 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-16 Wiper does not work

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-83

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-17 Incorrect arm-in pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

7-84 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-18 Incorrect arm-out pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-85

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-19 Incorrect boom-raise pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

7-86 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-20 Incorrect boom-lower pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-87

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-21 Incorrect bucket-curl pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

7-88 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-22 Incorrect bucket-dump pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-89

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-23 Incorrect swing pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

7-90 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

E-24 Incorrect left travel pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-91

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

E-25 Incorrect right travel pilot pressure reading

Cause Standard value in normal state/Remarks on troubleshooting

7-92 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

7.7 Troubleshooting of Hydraulic and Mechanical Systems (H - Mode)

Shop Manual - June 2013 7-93

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

A Schematic of hydraulic system and mechanical system

7-94 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Shop Manual - June 2013 7-95

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Information contained in troubleshooting table

Cause Standard value in normal state/Remarks on troubleshooting

7-96 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-1 Work equipment speed slow, or swing and travel speeds slow

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-97

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-2 Engine speed drops sharply or engine stalls

Cause Standard value in normal state/Remarks on troubleshooting

7-98 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-3 Work equipment, swing, and travel systems do not work

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-99

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-4 Abnormal noise in hydraulic pump

Cause Standard value in normal state/Remarks on troubleshooting

7-100 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-5 Auto deceleration not functioning

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-101

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-6 Boom speed slow

Cause Standard value in normal state/Remarks on troubleshooting

7-102 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-7 Arm speed slow

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-103

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-8 Bucket speed slow

Cause Standard value in normal state/Remarks on troubleshooting

7-104 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-9 Work equipment cylinders no response in separate operation

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-105

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-10 Work equipment drifts excessively

Cause Standard value in normal state/Remarks on troubleshooting

7-106 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

Cause Standard value in normal state/Remarks on troubleshooting

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-107

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-11 Work equipment moves sluggishly

Cause Standard value in normal state/Remarks on troubleshooting

H-12 Other work equipment moves while single oil circuit is relieved

Cause Standard value in normal state/Remarks on troubleshooting

7-108 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-13 Travel speed drops considerably while swinging and travelling

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-109

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-14 Machine deviates during travel

Cause Standard value in normal state/Remarks on troubleshooting

7-110 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-15 Travel speed is low

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-111

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-16 Machine is not steered well or steering power is low

Cause Standard value in normal state/Remarks on troubleshooting

7-112 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-17 Travel speed cannot be changed

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-113

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-18 Travel system fails (only at one side)

Cause Standard value in normal state/Remarks on troubleshooting

7-114 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-19 Swing operation fails

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-115

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Cause Standard value in normal state/Remarks on troubleshooting

7-116 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-20 Swing acceleration poor or swing speed low

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-117

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

Cause Standard value in normal state/Remarks on troubleshooting

7-118 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-21 Upper structure overruns remarkably when it stops swinging

Cause Standard value in normal state/Remarks on troubleshooting

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-119

Troubleshooting SY195/205/215/225C9 Crawler Hydraulic Excavator

H-22 Large shock is produced when upper structure stops swinging

Cause Standard value in normal state/Remarks on troubleshooting

H-23 High noise is produced when upper structure stops swinging

Cause Standard value in normal state/Remarks on troubleshooting

7-120 Shop Manual - June 2013

SY195/205/215/225C9 Crawler Hydraulic Excavator Troubleshooting

H-24 Swing drift excessive

Cause Standard value in normal state/Remarks on troubleshooting

Cause Standard value in normal state/Remarks on troubleshooting

Shop Manual - June 2013 7-121