95 - 2
Section E
Hydraulics
9803/6410
Section E
95 - 2
Issue 1
Slew Motor
Fault Finding (cont’d)
Table 2.
No.
Part Inspected
Repair
a
Wear of the sliding surface of balance plate
21
.
Repair or renew the part
b
Damage to sliding surface of cam plate
6
.
Repair the part or renew the motor.
c
Damage to sliding surface of the piston assemblies
8
.
Repair the part or renew the motor.
d
External wear to the piston assemblies
8
.
Repair the part or renew the motor.
e
Wear to piston bores in cylinder assembly
24
.
Renew the motor.
f
Damage to Teflon ring
19
or ‘O’-rings
52
.
Renew the part.
Symptom
Cause
External Inspection
Countermeasure
Repair
Wear or seizure of the
Open motor inlet and
High possibility of
Inspect the parts and
motor sliding surfaces.
outlet ports and apply 20
internal damage to the
bearing according to
kgf/cm
2
(284 lbf/in
2
) pilot
motor if the supply shaft
Table 2 a-e and renew
pressure to the brake
does not rotate smoothly
any defective parts.
release port.Try to rotate
when this torque is
the shaft with a torque of
applied. Dismantle and
approx. 39.32 Nm
inspect.
(29 lbf ft).
Relief valve in the circuit
Measure relief pressure.
Reset to the prescribed
is not set correctly.
setting.
Internal damage to the
Check if any metallic
High possibility of
Repair or renew
motor.
matter is deposited in the
internal damage to the
damaged parts. Renew
motor drain oil or drain
motor if metallic matter
the motor assembly.
filter.
is discovered.
Dismantle and inspect.
Large amount of air
Check the oil in the tank
Thoroughly bleed the air.
mixed in the oil.
and motor casing.
Loosening of bolts or
Check if the piping
Tighten to the specified
pipes
connections, attachment
torque.
mounting bolts, motor
attachment bolts or other
bolts are loose.
O-ring is damaged
Renew O-rings.
Seal face is damaged.
Repair seal face or
renew.
Bolts are loose.
Check the bolt tightness.
Tighten the bolts to the
correct torque.
Insuf
ficient tor
que
Abnormal noise
Oil leakage fr
om
mating surfaces
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...
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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...