Operation and maintenance manual

SM 1382 Rev 1 03-05
Section 160-0050
11
TUBELESS TYRE LEAK DIAGNOSIS
TABLE499
Occasionally a tubeless off highway tyre/rim assembly may leak in field service. To determine cause of leakage,
the entire assembly including valve hardware, multi-piece rim assembly, 'O' ring and tyre should be checked using a
soap solution.
This table lists various causes of air loss and possible remedy.
CAUSE REMEDY
Defective valve Tighten parts. Replace defective parts. Use valve caps.
Cracked rim or weld Replace defective part
WARNING
Do not attempt repair of wheel components.
Twisted or damaged 'O' ring Replace 'O' ring (lubricate)
Tyre cuts and snags Repair tyre damage
Bead area awl holes Repair inner liner (preferred)
Leakage between tyre bead trim With tyre removed from rim:
Clean tyre beads in rim contact area
Clean rim with wire brush
Inspect 5 degree tapered bead seat band and the rim base
in the bead seating area to determine if the transverse weld
trims are flat or concave. Replace defective part(s). Note:
Weld trim should follow rim contour.
Mount tyre using a lubricant such as Murphy's Tyre and Tube
Mounting Compound, or equivalent, on tyre beads and rim bead
seat area.
* * * *
Rear Axle Group - Wheel Rim and Tyre