S0705010
Page 8
Cylinders
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Problem Cause Remedy
Oil leaking between cylinder
head (16) and piston rod (18).
(Index nos. refer to Figure 1).
Foreign material in U-ring (3,
Figure 1)
Remove foreign material.
Scratches in U-ring (3, Figure 1). Replace U-ring (3).
Damage to U-ring (3, Figure 1). Replace U-ring (3).
Foreign material in dust seal (2,
Figure 1).
Remove foreign material.
Scratches in dust seal (2, Figure
1).
Replace dust seal (2).
Damage to dust seal (2, Figure
1).
Replace dust seal (2).
Foreign material in seal O-ring
(4, Figure 1).
Remove foreign material.
Scratches in seal O-ring (4,
Figure 1).
Replace O-ring (4).
Damage to seal O-ring (4,
Figure 1).
Replace O-ring (4).
Scratch on sealing surface of
piston rod (18, Figure 1).
If scratches are not deep, hone
with an oil stone and lubricate. If
scratches are deep, replace
piston rod (18).
Deep scratches on inner surface
of bushing (15, Figure 1).
Replace bushing.
Oil leaking between cylinder
head (16) and cylinder tube (13).
Damage to O-rings (14, Figure
1).
Replace O-rings (14).
Oil leaking from welded area of
cylinder tube (13).
Damage to welded area. Replace cylinder tube (13).
Cylinder drops from pull of
gravity.
Light scratches on sealing
surface of cylinder tube (13,
Figure 1).
Hone out scratches with oil
stone.
Deep scratches on sealing
surface of cylinder tube (13,
Figure 1).
Replace cylinder tube (13).
Deep scratches on sealing
surface of piston O-rings (10,
Figure 1).
Replace O-rings (10).
Foreign material in U-ring (3,
Figure 1).
Remove foreign material.
Scratches in U-ring (3, Figure 1). Replace U-ring (3).
Damage to U-ring (3, Figure 1). Replace U-ring (3).
Nylon wear rings (7, Figure 1)
twisted.
Replace nylon wear rings (7).
Nylon wear rings (7, Figure 1)
scratched.
Replace nylon wear rings (7).
Nylon wear rings (7, Figure 1)
have other damage.
Replace nylon wear rings (7).