4-181
4
SWIVEL JOINT
DISASSEMBLY AND ASSEMBLY
Inspection and adjustment
Inspection procedure and treatment
Inspection interval Inspection point Inspection procedure Treatment
2000 hours Seals
preventing leakage
of oil to the outside
Check if oil is leaking out If there is a leak, replace the O-
rings
4000 hours
Disassemble
and inspect
regardless of leak
All seals –– Replace all sealing parts
All sliding parts Check
for abnormal wear,
scratches, corrosion, etc., due
to scorching, or trapping of for-
eign matter
, etc.
Treat in accordance with the
use limit for parts
Disassembly
due to mal-
function
All parts Check
for abnormal wear,
scratches, corrosion, etc., due
to scorching, or trapping of for-
eign matter
, etc.
Treat in accordance with the
use limit for parts, but make
sure to replace the seal kit
Use limit for parts
Hub, shaft
Part Judgment criteria Treatment
Sliding portion against the
seals
•
Loss or peeling of high-frequency induction-hardened
surfaces due to wear, scorching, trapping of foreign
matter, etc.
• Replace
Sliding portion of hub and
shaft other than the seals
•
Abnormal wear or scratches of 0.1 mm depth or more
due to scorching, trapping of foreign matter, etc.
• Scratches of 0.1 mm depth or more
• Replace
• Repair with an emery
wheel
Sliding
portion against the
thrust ring
•
Wear of 0.5 mm or more or abnormal wear
• Wear of 0.5 mm or less
• Scratches due to scorching, seizing of foreign matter,
etc., which are within the wear limit of 0.5 mm and can
be repaired
• Replace
• Repair to make surfaces
smooth
•
Repair to make surfaces
smooth
Flange
Part Judgment criteria Treatment
Sliding portion against the
shaft end
•
Wear of 0.5 mm or more or abnormal wear
• Wear of 0.5 mm or less
• Scratches due to scorching, trapping of foreign matter,
etc., which are within the wear limit of 0.5 mm and can
be repaired
• Replace
• Repair to make surfaces
smooth
•
Repair to make surfaces
smooth
Thrust ring
Judgment criteria Treatment
Wear of 0.5 mm or more or abnormal wear Replace
W
ear of 0.5 mm or less Repair to make surfaces smooth
Scratches
due to scorching, trapping of foreign matter, etc., which are within
the wear limit of 0.5 mm and can be repaired
Repair to make surfaces smooth
To Next Page
Loading...
