Fault Finding
Table 1.
95 - 1
Section E
Hydraulics
9803/6410
Section E
95 - 1
Issue 1
Slew Motor
Symptom
Cause
External Inspection
Countermeasure
Repair
Internal damage to the
Measure the oil drain
High possibility of
Refer to Table 2.
motor.
volume.
damage to the sliding
surfaces if the supply
volume is approximately
equal to the drain
volume. Dismantle and
inspect.
Internal damage to the
Open the motor inlet and
High possibility of
Renew damaged parts
motor.
outlet ports and apply
internal damage to the
or renew the motor
20 kgf/cm
2
(284 lbf/in
2
)
motor if the supply shaft
assembly.
pilot pressure to the
does not rotate smoothly
brake release port. Try
when this torque is
to rotate the shaft with
applied. Dismantle and
a torque of approx.
inspect.
39.32 Nm (29 lbf ft).
Relief valve in circuit not
Measure pressure.
Reset to the prescribed
set correctly.
setting.
Wear or damage to the
Measure the oil drain
Leakage is too high if the
Refer to table 2.
motor sliding surfaces or
volume.
oil drain volume exceeds
to the high-pressure seal.
5 l/min (1.1 gal/min).
Dismantle and inspect.
Oil hot and excessive
Measure the oil
Reduce the oil
Refer to table 2.
leakage in the motor.
temperature.
temperature.
Seizure of motor sliding
Check for any metallic
If metallic matter is
Repair or renew the
parts or circuit.
matter deposited in
discovered or the supply
damaged parts. Renew
motor drain oil or drain
shaft does not rotate
the motor assembly.
filter. Apply a 30 kgf/cm
2
smoothly when torque is
(427 lbf/in
2
) pilot pressure applied, there is a high
to the brake release port
possibility of internal
and try to rotate the shaft
damage to the motor.
with a torque of approx.
Dismantle and inspect.
39.32 Nm (29 lbf ft).
Damage or wear to oil
Renew the oil seals.
seal lip.
Damage or wear of the
Repair the problem or
shaft seal.
renew the motor
assembly.
Abnormal pressure in the
Check the pressure in the
Set the pressure in the
Renew the oil seal.
casing.
casing and measure the
casing below 3 kg/cm
2
.
Repair or renew the
drain volume.
(43 lbf/in
2
) Dismantle
damaged parts. Renew
and inspect if drain
the motor assembly.
volume is excessive.
Motor does not run
Excessive slip
Abnormal heating
Leakage fr
om oil seals
Содержание JS130
Страница 39: ...3 3 Section 3 Routine Maintenance 9803 6410 Section 3 3 3 Issue 1 Greasing continued Excavator End...
Страница 65: ...Section 3 Section 3 9803 6410 Issue 1 9 1 9 1 Routine Maintenance Component Location Diagram...
Страница 118: ......
Страница 119: ...3 1 Section C Electrics 9803 6410 Section C 3 1 Issue 1 Layout Operator s Cab...
Страница 142: ...5 3 Section C Electrics 9803 6410 Section C 5 3 Issue 1 Pump Control FLOW CHART...
Страница 145: ...5 6 Section C Electrics 9803 6410 Section C 5 6 Issue 1 Pump Control Cushioned Boom Starting continued Flow Chart...
Страница 148: ...5 9 Section C Electrics 9803 6410 Section C 5 9 Issue 1 Pump Control Pressure Increasing System continued Flow Chart...
Страница 155: ...5 16 Section C Electrics 9803 6410 Section C 5 16 Issue 1 Pump Control Power Supply Cut Delay Flow Chart...
Страница 159: ...5 20 Section C Electrics 9803 6410 Section C 5 20 Issue 1 Pump Control Swing brake Swing lock continued Flow Chart...
Страница 160: ...5 21 Section C Electrics 9803 6410 Section C 5 21 Issue 1 Pump Control Lever Lock Circuit Diagram Time Chart...
Страница 161: ...5 22 Section C Electrics 9803 6410 Section C 5 22 Issue 1 Pump Control Lever Lock continued Flow Chart...
Страница 207: ......
Страница 209: ......
Страница 210: ...3 4 Section E Hydraulics 9803 6410 Section E 3 4 Issue 2 Schematics Shuttle Block...
Страница 211: ...Section E Section E Hydraulics 9803 6410 Issue 2 3 5 3 5 Schematics Pilot Control Line Hose Connection Diagram JS03540...
Страница 212: ...Section E Section E Hydraulics 9803 6410 Issue 1 3 6 3 6 Schematics Pilot Control Line Hose Connection Diagram JS03540...
Страница 234: ...14 1 Section E Hydraulics 9803 6410 Section E 14 1 Issue 1 JS00010 Hydraulic Pump Regulator Dismantling and Assembly...
Страница 278: ...32 2 Hydraulic Circuit Diagram Section E Hydraulics 9803 6410 Section E 32 2 Issue 1 Control Valve JS01700...
Страница 279: ...33 1 Neutral Circuit Section E Hydraulics 9803 6410 Section E 33 1 Issue 1 Control Valve JS01610...
Страница 284: ...33 6 Boom Raise BM Operation Section E Hydraulics 9803 6410 Section E 33 6 Issue 1 Control Valve L...
Страница 287: ...33 9 Slew Operation SW Priority Circuit Section E Hydraulics 9803 6410 Section E 33 9 Issue 1 Control Valve JS01770...
Страница 293: ...Hydraulics 9803 6410 Issue 1 34 3 34 3 Section E Section E Control Valve JS01820 Dismantling and Assembly cont d...
Страница 532: ...Contents Page No Technical Data 1 1 i Engine 9803 6410 i Issue 1 Section K Section K...