Reassemble; Steering Control Valve, Exploded - Taylor-Dunn TC-030-60L Operation, Maintenance, And Replacement Parts Manual

Reassemble

Thoroughly clean all components and air dry. Read cleanliness
caution at the beginning of this section.
Use new seals. Lightly lubricate all seals with petroleum jelly
prior to assembly.
1. Install the check valve retainer (21). Make sure it is straight
in the bore.
2. Install the check ball (22).
3. Install seals on the check ball seat (23).
4. Carefully install the lubricated check ball seat/seal
assembly into the housing. Do not twist the seals. Push
down to the shoulder of the hole.
5. Lubricate the spool with hydraulic fluid and assemble the
spool and sleeve (9). Make sure that the spring slots are
at the same end. The spool should freely rotate in the
sleeve.
6. Position the springs (11) on the bench so that extended
edge is down and arched center section is together.
7. Compress the extended end of the centering spring set
and push into the spool.
8. Center the spring set in the parts so that they push down
evenly and flush with the upper surface of the spool and
sleeve.
9. Install the pin (10) into the spool/sleeve assembly. It should
be flush at both ends.
10. Keeping the pin horizontal, install the spool/sleeve
assembly through the bottom of the housing until it is flush
with the bottom of the housing.
11. Install the seal, races, and thrust bearing into the top of
the housing.
STEERING CONTROL
VALVE, EXPLODED
Model B4XT-2500
Maintenance, Service, and Repair
12. Install dust seal (16) into the seal gland bushing (18). Flat
or smooth side must face down into the bushing.
13. Install the quad ring seal (17) into the gland bushing.
Smooth the seal into place with your finger. Do not use
any seal that freely falls into pocket of the bushing.
14. Install the seal gland bushing assembly over the spool
end. Tap in place with a rubber hammer. Bushing should
be flush against the bearing race.
15. Install the retaining ring (19). Make sure it is properly
seated.
16. Clamp the Steering Valve as shown in a vise. Use
protective material such as leather on the vise jaws. Do
not over tighten the vise or the housing may be damaged.
17. The spool /sleeve assembly should be flush with the end.
18. Install seal (3) in housing.
19. Install spacer plate (6).
20. Rotate the spool/sleeve assembly until the pin is parallel
with the port face and install the drive (7). Mark the end of
the drive with a line that is parallel with the port face.
21. Install seal (3) on to the meter (4).
22. With the seal side of the meter facing the spacer plate,
align the star valleys of the meter to the line on the drive.
Do not allow the drive to rotate.
23. Install the drive spacers.
24. Install seal in meter or end cap and install the end cap.
Cross tighten the bots in two stages. First to 120 inch
pounds (14 nm) then to final torque listed in the Hardware
Torque table at the end of this section.
Steering Components
Page 3