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Service
2
17
†
Fig. 8
1
Rounded side must face down.
Tighten screws until they bottom
2
out on the housing.
Fig. 9
1
Insert narrow end first.
2
Grease.
Install with lips facing
3
narrow end of piston (11).
4
Insert wide end first.
10
†
2
3
11
4
12
16
1
15
03270B
3
2
8
9
†
1
03271
Reassembly
1.
If you removed the bearings (12, 15), install new ones as
explained on page 20. Reassemble the fluid section.
2.
Install the valve plate seal (9†) into the groove at the
bottom of the valve cavity. The rounded side of the seal
must face down into the groove. See Fig. 9.
3.
Install the valve plate (8) in the cavity. The plate is re-
versible, so either side can face up. Install the three
screws (3), using a Torx (T20) screwdriver or 7 mm sock-
et wrench. Tighten until the screws bottom out on the
housing. See Fig. 9.
4.
Install an o-ring (17†) on each pilot pin (16). Grease the
pins and o-rings. Insert the pins into the bearings (15),
narrow end first. See Fig. 8.
5.
Install a u-cup packing (10†) on each actuator pis-
ton (11), so the lips of the packings face the narrow end
of the pistons. See Fig. 8.
6.
Lubricate the u-cup packings (10†) and actuator pis-
tons (11). Insert the actuator pistons in the bearings (12),
wide end first. Leave the narrow end of the pistons
exposed. See Fig. 8.
7.
Grease the lower face of the pilot block (18†) and install
so its tabs snap into the grooves on the ends of the pilot
pins (16). See Fig. 7.
8.
Grease the o-ring (6†) and install it in the valve block
(7†). Push the block onto the valve carriage (5). Grease
the lower face of the valve block. See Fig. 7.
9.
Install the valve carriage (5) so its tabs slip into the
grooves on the narrow end of the actuator pistons (11).
See Fig. 7.
10. Align the valve gasket (4†) and cover (2) with the six
holes in the center housing (1). Secure with six
screws (3), using a Torx (T20) screwdriver or 7 mm sock-
et wrench. Torque to 50–60 in–lbs (5.6–6.8 NSm). See
Fig. 6.
829.4334
15
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