10 - 8
Hydrostatic Pump
from machine no. 676355
Dismantling and Assembly
Following a complete rebuild of this pump it is necessary for
it to be set up on a dynamic test jig. Because of this it is
recommended that no dismantling work is carried out beyond
that covered in the following pages.
Shaft Seal
Removal and Replacement
1
Remove circlip
1
.
Note:
It may be necessary to press shaft
2
into the body
against spring force before the circlip can be removed.
When the circlip is removed, seal carrier
3
will move out
approximately 6 mm (0.25 in.) due to spring force.
2
Lightly tap the end of shaft
2
with a rubber mallet and
remove seal carrier
3
.
Note:
After the seal carrier has been removed, the shaft
2
and bearing assembly
4
are free in the body. Under no
circumstances should the shaft be removed as this could
cause loss of alignment of the pump internals
necessitating a total strip and rebuild. Such a procedure
is outside the scope of this Service Manual.
3
Remove O-ring
5
from seal carrier
3
. Discard the O-ring.
4
Using a suitable press, press out lip seal
6
from the seal
carrier. Discard the lip seal.
5
Inspect seal carrier
3
for damage, and the sealing area
on shaft
2
for signs of rust, wear or contamination. Polish
the sealing area on the shaft if necessary.
6
Coat the outside diameter of new lip seal
6
with suitable
sealant. Press the lip seal into the shaft bearing side of
seal carrier
3
, ensuring that the seal lip faces the shaft
bearing. Take care not to damage the lip seal.
7
Lubricate the inside diameter of lip seal
6
with petroleum
jelly.
8
Install new O-ring
5
onto seal carrier
3
and lubricate with
petroleum jelly.
9
Wrap the splined end of shaft
2
with thin plastic to
prevent damage to the lip seal during installation.
10
Slide seal carrier
3
over shaft
2
and press into position in
the pump body recess.
11
Holding inward pressure against shaft
2
, refit circlip
1
to
secure the assembly.
Section E
Hydraulics
9803/8500
Section E
*10 - 8
Issue 4*
Pumps
S244910
2
4
6
5
3
1
*
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...