Schmidt AmphiBlast 120, Operation And Maintenance Manual

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Copyright © 2019 Axxiom Manufacturing, Inc.
8.16. Trailer Wheels: Verify that the wheel to hub fit is correct and that the proper wheel lug nuts are
being used. See Table 8.4 for lug nut type and Figure 8.6 for wheel to hub fit.
Check the trailer wheel lug nut torque upon delivery of the new bulk abrasive blaster. On new
units, the lugs must be retightened after each load and before reloading. This is most important
after the first load when the lug nuts are establishing a seat. Check the trailer wheel lug nut
torque quarterly thereafter.
On new highway trailer mounted units transported on public roads, re-torque the wheel lug nuts
after the first 50 miles of use. Check the trailer wheel lug nut torque quarterly thereafter. After
mounting a wheel re-torque after the first 50 miles of use. Determine the model number of the
bulk abrasive blaster and torque the wheel lug nuts to the specifications shown in Table 8.4.
Torque the wheel lug nuts in the sequence shown in Figure 8.5.
Model Bolt Pattern Wheel Type Thread Size Lug Nut Type Torque(ft-lb)
12,000 lb.
6 on 5.5” circle
Single
1/2” - 20
60 Degree cone 80 - 90
16,000 lb.
8 on 6.5” circle
Single
9/16” - 18
90 Degree cone 175 – 200
20,000 lb.
8 on 6.5” circle
Dual
5/8” - 18
1 Piece Flange 275 - 325
Table 8.4
– Trailer Wheel Torque Specifications
Figure 8.5
– Trailer Wheel Torque Sequence
Figure 8.6
– Trailer Wheel to Hub Fit
Accident hazard. Loose wheel can cause loss of vehicle control. Tighten wheel lug nuts
frequently.
8.17. Vessel Mount Bolts: Check the vessel to trailer mounting bolt torque upon delivery of the new
bulk abrasive blaster. Re-torque the mounting bolts after the first 50 miles of use. Check the
mounting bolt torque quarterly thereafter. Torque the vessel to trailer mounting bolts to 98 ft.
lb. See the drawing in Section 9.3(a).