jcb JS300 Service Manual page 729

Tracked excavators - tier 4i isuzu engine
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22A
Fig 16.
5
Grease oil seal 16 and fit seal cover 15 to swash plate
support 17. Secure it with socket head screws 14
tightened to a torque of 11.5 Nm (8.5 lbf ft).
Fig 17.
6
Assemble
the
piston/cylinder
comprising cylinder 9, piston assemblies 10, set plate
11, spherical bush 12 and cylinder springer 13. Make
E-68
5A
32A
379630-C1
5A (5)
17A
(17)
15
14
379640-C2
sub-assembly
Z
9813/5100-1
Section E - Hydraulics
Hydraulic Pump/Regulator
Hydraulic Pump Dismantling and Assembly
sure the internal splines of the cylinder and the
spherical bearing are aligned.
Insert the piston/cylinder sub-assembly into pump
casing 5.
9
11
12
10
13
Fig 18.
7
Attach valve plate 23 to valve block 8, engaging the
location pin in the process. Check that the suction and
delivery ports of the plate are not transposed.
8
Insert splined coupling 29 into valve block 8.
K Fig 13. ( T
E-66). Fit the valve block to pump
casing 5, taking care to align the match marks.
Engage the spline on shaft 22 with the splined
coupling. Secure with the four socket head screws 7,
tightened to a torque of 130 Nm (94 lbf ft).
9
Refit regulator 4 to pump casing 5 taking care to
locate the feedback pin of tilting lever 27 with the lever
of the regulator. Secure the regulator with socket
head screws 2 and 3, tightened to a torque of 29.4
Nm (25.8 lbf ft).
Z
379650-C1
E-68

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