5 - 2
Fault finding (cont’d)
Section F
Transmission
9803/6410
Section F
5 - 2
Issue 1
Traction Motor/Reduction Gear
Symptom
8
High temperature of reduction
gear case surface.
9
Does not travel in a straight line
at ‘low speed’.
10
Does not travel in a straight line
at ‘high speed’.
11
Does not speed up - pump
delivery slow.
12
Does not speed up.
13
Abnormal sound.
14
Does not change from low speed
to high speed.
Possible cause
a
Insufficient gear oil.
b
Pitching is generated in bearing.
c
Entry of hydraulic oil into gear
case.
a
Uneven delivery flow between
right and left sides.
b
Uneven motor drain leakage
between right and left sides.
a
Uneven delivery flow between
right and left sides.
b
Uneven motor drain between
right and left sides.
c
Non-uniform operation of right
and left brake valves.
d
Drop in relief pressure in right or
left control valve.
a
Pump regulator and/or related
parts faulty.
b
Leakage outside pump is
excessive.
a
Internal leakage is excessive.
a
Motor or reduction gear is
broken.
b
Vibration of pipework.
a
Faulty operation of high pressure
selection check valve.
b
Faulty operation of switching
valve.
c
Low pilot pressure.
d
Faulty operation of 2-speed
switching piston.
Remedy
Top up oil
Dismantle and renew damaged parts.
Renew oil seal.
Repair pump and/or regulator.
Dismantle motor/reduction gear and
repair.
Repair pump and/or regulator.
Dismantle motor/reduction gear and
repair.
Renew brake valve and/or rear flange.
Set correct pressure and/or renew
relief valve.
Repair regulator and/or related parts.
Repair or renew pump.
Dismantle reduction gear and repair.
Dismantle motor and/or reduction
gear and repair.
Clamp pipework securely.
Inspect and repair or renew if
necessary.
Check to see if spool is normal, and
repair or renew if necessary.
Set to specified pressure.
Inspect and repair or renew if
necessary.
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...