5 - 1
Fault finding
Section F
Transmission
9803/6410
Section F
5 - 1
Issue 1
Traction Motor/Reduction Gear
Symptom
1
Motor does not start - no oil
pressure present.
2
Motor does not start - oil
pressure present.
3
Oil leakage from mating
surfaces.
4
Oil leakage from case.
5
Oil leakage from floating seal.
6
Oil leakage from hydraulic motor.
7
Slips down on slope.
Possible cause
a
Low relief valve set pressure.
b
Pump failure.
c
Direction switching valve failure.
a
Brake valve failure
b
Hydraulic motor failure.
c
Gear teeth are broken.
d
Overloaded.
a
Mating surface is scratched.
b
Bolts loose.
a
Plug is loose.
b
Cracks caused by stone, etc.
a
Sliding surface is worn.
b
Seepage past ‘O’-ring.
a
Mounting bolts loose.
b
‘O’-ring is damaged.
c
Seal surface is scratched.
a
Poor motor efficiency.
b
Excessive leakage inside brake
valve.
c
Parking brake spring broken.
d
Parking brake friction plate worn
Remedy
Set correct pressure.
Check operation of services other
than travel. Repair pump if necessary.
Check spool for damage. Repair if
necessary.
If spool or valve is thermally seized,
repair or renew.
Check hydraulic oil and renew if
necessary.
Dismantle reduction gear and renew
broken parts.
Remove load.
Lap surfaces using wet stone or
emery paper.
Tighten bolts and recheck.
Tighten plug.
Dismantle reduction gear and renew
damaged parts.
Dismantle reduction gear and renew
damaged parts.
Dismantle reduction gear and renew
damaged parts.
Retighten bolt(s).
Renew ‘O’-ring.
Lap surface using wet stone or emery
paper.
Renew traction motor.
Renew brake valve and/or rear flange.
Renew spring.
Renew friction plate and/or other
plate.
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...