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Axle Alignment
Verify that the forward axle is centered on the trailer; W1 = W2. Check the distance from the
coupler or faceplate center to the forward axle end on both sides, and adjust the left radius rod (or
spring seat adjusters for slipper type suspension if necessary (the right radius rod is of fixed length))
so that X1 is equal to X2
, the difference should not vary more than 1/16”. Next check the W and Z
distances for the second axle, and then do the same for the third axle, if so equipped, the difference
should not vary more than 1/8”.
More detailed information is contained in the supplied axle manufacturers manual.
Axle End Component Disassembly
Whenever the hub equipment on your trailer must be removed for inspection or maintenance
refer to the supplied axle manufacturer’s manual.
Hub Inspection
Clean the hub with a commercial solvent for inspection. Check for cracks, elongated holes,
evidence of overheating or foreign object damage. The hub is crucial to safe vehicle operation and
any doubt about its condition should be cause for replacement.
Broken or Damaged Studs
Typically, when a stud is damaged it is due to under torque (loose cap nuts), over torque, or
overloading. Because the studs act together to share the wheel loads, these parameters must be
followed:
1.
If one stud is broken, replace the studs on either side of the broken one also.
2.
If two or more studs are broken, replace the entire set.
3.
A stud with damaged threads should be replaced immediately.
Summary of Contents for 18385
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Page 26: ...25 www valortrailers com PHONE 208 810 4900 Brake Drum Troubleshooting Chart...
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Page 32: ...31 www valortrailers com PHONE 208 810 4900 Tire Wear Diagnostic Chart...
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Page 51: ...50 www valortrailers com PHONE 208 810 4900 Section 3 2 Running Gear SA 23345...
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