VERDER VERDERAIR VA 25 Instructions-Parts List Manual page 15

Service
H
17†
2
Fig. 10
1
Rounded side must face down (aluminum
center housing models only).
2 Tighten screws until they
bottom out on the housing.
†9
1
Fig. 11
1 Insert narrow end first.
2 Grease.
Install with lips facing
3
narrow end of piston (11).
4
Insert wide end first.
{H
10
2 3
11
4
12
15 16
1
02643B
3 2
8H
Reassembly
1. If you replaced the bearings (12, 15), reinstall as ex-
plained on page 20. Reassemble the fluid section.
2. On aluminum center housing models, 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. 11.
3. Install the valve plate (8H) in the cavity. On aluminum
center housing models, the plate is reversible, so either
side can face up. Install the three screws (3), using a
Torx (T20) screwdriver or 7 mm socket wrench. Tighten
until the screws bottom out on the housing. See Fig. 11.
4. Install an o-ring (17{H) on each pilot pin (16). Grease the
pins and o-rings. Insert the pins into the bearings (15),
narrow end first. See Fig. 10.
5. Install a u-cup packing (10{H) on each actuator pis-
ton (11), so the lips of the packings face the narrow end
of the pistons. See Fig. 10.
6. Lubricate the u-cup packings (10{H) and actuator pis-
tons (11). Insert the actuator pistons in the bearings (12),
wide end first. Leave the narrow end of the pistons ex-
posed. See Fig. 10.
7. Grease the lower face of the pilot block (18{H) and install
so its tabs snap into the grooves on the ends of the pilot
pins (16). See Fig. 9.
8. Grease the o-ring (6{H) and install it in the valve
block (7{H). Push the block onto the valve carriage (5).
Grease the lower face of the valve block. See Fig. 9.
9. Install the valve carriage (5) so its tabs slip into the
grooves on the narrow end of the actuator pistons (11).
See Fig. 9.
10. Align the valve gasket (4{H) and cover (2) with the six
holes in the center housing (1). Secure with six
02645
screws (3), using a Torx (T20) screwdriver or 7 mm sock-
et wrench. Torque to 5.6–6.8 NSm. See Fig. 8.
819.4470 15