Hydraulics
9803/8500
Issue 2
Loader V
a
lve - Lift Ram Operation
Lift
The illustration shows 'Loader Arm Raise' being
selected by the lift ram spool
1
.
When the lift spool
1
is selected to lift, oil flows to
the lift ram
2
to raise the loader arm. As the arm
rises, oil is forced out of the compensating ram
3
.
The oil cannot flow past the crowd ram spool
4
as
the spool is not selected, instead it flows to the
crowd ram
5
. This has the effect of causing the
crowd ram to close in proportion to the loader arm
movement, automatically keeping the shovel parallel
to the ground.
The oil from the other side
6
of the crowd ram is fed
into the opposite side of the compensating ram at
7
.
Should pressures generated in lines
8
and
9
rise
above the set pressure then the auxiliary relief
valves fitted at
10
will lift and dump pressure to tank.
Lower
Is a reverse of the above procedure.
5 - 4
5 - 4
Descriptions
Section E
Section E
Summary of Contents for ROBOT 150
Page 2: ......
Page 21: ...5 2 Safety Decals cont d Section 2 Care and Safety 9803 8500 Section 2 5 2 Issue 2...
Page 77: ...Attachments Section A Section A 7 7 9803 8500 Issue 1 Backhoe...
Page 97: ...4 3 Section C Electrics 9803 8500 Section C 4 3 Issue 1 Alternator S213570...
Page 123: ...1 1 Section D Controls 9803 8500 Section D 1 1 Issue 1 Safety Restraint Bar S168160 1...
Page 125: ...2 1 Section D Controls 9803 8500 Section D 2 1 Issue 1 Throttle Controls S168150D...
Page 142: ...Hydraulics 9803 8500 Issue 1 4 1 4 1 Descriptions Section E Section E...
Page 145: ...Hydraulics 9803 8500 Issue 2 5 2 5 2 Descriptions Section E Section E...
Page 146: ...Hydraulics 9803 8500 Issue 2 5 3 5 3 Descriptions Section E Section E...
Page 149: ...Hydraulics 9803 8500 Issue 2 5 6 5 6 Descriptions Section E Section E...
Page 152: ...Hydraulics 9803 8500 Issue 1 5 9 5 9 Descriptions Section E Section E...
Page 163: ...10 1 Section E Hydraulics 9803 8500 Section E 10 1 Issue 1 Pumps 168150...
Page 165: ...10 3 Section E Hydraulics 9803 8500 Section E 10 3 Issue 1 Pumps 168030...
Page 167: ...10 5 Section E Hydraulics 9803 8500 Section E 10 5 Issue 1 Pumps 168160...
Page 175: ...11 1 Section E Hydraulics 9803 8500 Section E 11 1 Issue 2 Pumps 167750...
Page 179: ...13 1 Section E Hydraulics 9803 8500 Section E 13 1 Issue 1 Drive Motors 167720 S167720A...
Page 183: ...13 5 Section E Hydraulics 9803 8500 Section E 13 5 Issue 1 Drive Motors S243720 X X S243870...
Page 212: ...18 1 Section E Hydraulics 9803 8500 Section E 18 1 Issue 2 Valves S204980 X X 3 B A 4 2 1 5...
Page 215: ...20 1 Section E Hydraulics 9803 8500 Section E 20 1 Issue 1 Servo Joysticks S167960...
Page 217: ...20 3 Section E Hydraulics 9803 8500 Section E 20 3 Issue 1 Servo Joysticks 167950...
Page 221: ...23 3 Section E Hydraulics 9803 8500 Section E 23 3 Issue 1 Rams S167800...
Page 241: ...1 2 Section F Transmission 9803 8500 Section F 1 2 Issue 2 Tyres and Wheels 167861 167811...
Page 243: ...1 4 Section F Transmission 9803 8500 Section F 1 4 Issue 2 Tyres and Wheels 167851...
Page 253: ...2 1 Section K Engine 9803 8500 Section K 2 1 Issue 1 Removal and Replacement S167990...