Hyster MAST N45XMXR3, Руководство пользователя

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1600 SRM 974 Steering Control Unit
sure all surfaces are free of scratches and sharp
edges.
Reassemble (Before May 2002)
NOTE: Refer to Figure 3 for the following instruc-
tions.
1. Install the gerotor. Carefully align the scribe
(mark) on the gerotor and the housing.
2. Install the drive pin.
3. Install new dust seal, pressure seal, and O-ring
(8) on the mounting cap.
Carefully align the
scribe (mark) on the mounting cap and the gero-
tor.
4. Install new thrust races and thrust bearings into
the housing.
5. Remove the tank plug on the bottom of the SCU
with a spanner wrench. Remove the O-ring (11).
Carefully clean and inspect the groove in which
the O-ring is seated and install a new O-ring.
Reassemble (After May 2002)
NOTE: Refer to Figure 4 for the following instruc-
tions.
NOTE:
Always use new seals when reassembling
the SCU. During reassembly lubricate the new seals
with a petroleum jelly such as Vaseline™.
Also
lubricate machined surfaces and bearings with clean
hydraulic fluid.
1. Install the quad seal:
• Install one of the bearing races and the sleeve
into the housing.
• Together, the housing and bearing race create
a groove into which the quad seal will be in-
stalled.
• Hold the bearing race tightly against the input
end of the housing by pushing on the gerotor
end of the sleeve.
• Fit the quad seal into its seat through the input
end of the housing. Make sure the seal is not
twisted.
• Remove the sleeve and bearing race.
2. Lubricate and install the dust seal.
3. Install the centering springs in the spool. It is
best to install the two flat pieces first. Next, in-
stall the curved pieces, three at a time.
4. Fit the retaining ring over the centering springs.
5. Apply a light coating of clean hydraulic fluid to
the spool and slide it into the sleeve. Make sure
the centering springs fit into the notches in the
sleeve.
6. Install the drive pin.
CAUTION
Do not damage the dust and quad seals.
7. Apply a light coating of petroleum jelly to the
inner edge of the dust and quad seals.
8. Install the thrust bearing and races into the
housing. The thrust bearing is installed between
the two races.
9. Apply a light coating of clean hydraulic fluid to
the spool and sleeve assembly and slide it into
the housing.
CAUTION
Do not damage the housing by overtightening
the vise.
10. Clamp the housing in a vise as shown in Figure 2.
Use only enough clamping force to hold the hous-
ing securely.
11. Lubricate and install a new O-ring in the groove
in the housing.
12. Install the wear plate and align the scribe (mark)
you made earlier on both the wear plate and
housing.
13. Install the drive shaft. Make sure the slot in the
drive shaft engages the pin.
14. Lubricate and install a new O-ring in the groove
in the wear plate.
15. Install the gerotor and align the scribe (mark)
you made earlier on the wear plate, gerotor, and
housing.
16. Lubricate and install a new O-ring in the groove
in the gerotor.
17. Lubricate and install a new O-ring in the groove
in the gerotor star.
18. Install the spacer.
7