70
70
backward until 11 degrees.
backward until 11 degrees.
Fig 6.8 Tilt cylinder
Fig 6.8 Tilt cylinder
1.
1. Joint
Joint
6.
6. Guide
Guide sleeve
sleeve 1
11.
1. Yx-ring
Yx-ring
2.
2. Dust
Dust ring
ring
7.
7. Bearing
Bearing
12.
12. Wear
Wear ring
ring
3.
3. Snap
Snap ring
ring
8.
8. O-ring
O-ring
13.
13. Piston
Piston
4.
4. Yx-ring
Yx-ring
9.
9. Piston
Piston rod
rod
14.
14. Yx-ring
Yx-ring
5.
5. O-ring
O-ring
10.
10. Cylinder
Cylinder body
body
6.8 Troubleshoot
6.8 Troubleshoot
If the hydraulic system occurs trouble, find out the possible cause according to the
If the hydraulic system occurs trouble, find out the possible cause according to the
following tables and repair it.
following tables and repair it.
(1) Control valve
(1) Control valve
Problem
Problem
Possible
Possible cause
cause
Remedy
Remedy
Lower oil pressure and
Lower oil pressure and
lower oil amount of the
lower oil amount of the
steering oil circuit
steering oil circuit
Spool is held up
Spool is held up
Disassembly and clean,
Disassembly and clean,
renew oil
renew oil
Slide
Slide surface
surface broke
broke down
down
Replace
Replace spool
spool
Spring
Spring is
is broken
broken
Replace
Replace spring
spring
Oil
Oil hole
hole is
is blocked
blocked
Disassembly
Disassembly and
and clean
clean
Misadjusted
Misadjusted relief
relief valve
valve
Adjust
Adjust relief
relief valve
valve
Lower oil pressure of the
Lower oil pressure of the
lifti
il i
it
lifti
il i
it
Spool
Spool is
is held
held up
up
Disassembly
Disassembly and
and clean
clean
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