14 - 5
Dismantling
Refer to the illustrations on pages 14 - 1 to 14 - 3 and the
component list on page 14 - 4. In the following procedures,
the part numbers in bold type (e.g.
71
) correspond with the
numbers on the illustrations.
Before attempting to dismantle the hydraulic pump, drain all
oil, blank all inlet and outlet ports and wash the outer
surfaces with a suitable solvent to remove all dirt and dust.
Dry using compressed air.
Make different alignment marks across each sub-assembly
joint face as an aid to assembly.
The cylinder block assemblies, servo pump, relief valve and
proportional pressure reduction valve must be replaced as
complete assemblies.
The following procedures show a complete strip down, but,
unless absolutely necessary, avoid disturbing or dismantling
the control elements of the pump, i.e. those retained by
covers
30
,
52
and
53
and by plugs
31
and
35
. Any
interference with setting screws will affect pump output
control, necessitating precision re-setting on the bench.
The pump/regulator unit contains two pressure pumps, P1
and P2. Take care not to get the parts from one mixed in
with parts from the other.
During dismantling, record the number and dimensions of
shims. Take care to reassemble in the same manner.
Section E
Hydraulics
9803/6410
Section E
14 - 5
Issue 1
Hydraulic Pump/Regulator
Note:
Protect the clamping faces when supporting the pump
housing in the vice.
1
Support pump housing
1
in a vice, clamped across the
inlet and outlet port flanges. Unscrew the four socket
head bolts
71
and remove mounting flange
61
.
2
Remove hose
59
.
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...
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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...