21
Base inspections Section 1 – Scheduled Maintenance
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B - Frequent/periodic/pre-delivery inspection
Do a check for damage or wear on each tire and rim.
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Look for damage or cracked welds on each rim.
The rims should be round.
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Look for uneven or unusual wear on the tire.
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Look for flat spots on the tread face of the tire.
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The tire tread should be visible and not worn
down completely. Refer to Figure 02.
Figure 02
Do a check for cuts or missing chunks in the edges
and tread face of the tire. Refer to Figure 03.
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The cut or missing chunk must not extend
more than 10 mm (3/8”) towards the centre of
the tire.
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Each cut or chunk should not be larger than
25 mm x 10 mm (1” x 3/8”), or deeper than
20 mm (3/4”).
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There should be no more than 2 cuts or
chunks in each 1/4 section of the tire. There
must be no more than 6 cuts or chunks in total
in the tire.
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There should be no embedded debris.
Do a check of the wheel components and mounts.
▪
Make sure the wheels are correctly aligned
vertically and horizontally.
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Make sure the wheel motors have no loose or
missing parts and there is no visible damage.
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C - Annual inspection
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Make sure the castle nut is in position and is
tight.
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Make sure the cotter pin is correctly installed.
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If the cotter pin is not installed, refer to 2.8
Torque Specifications for proper torque
information.
Figure 03
The tire treads have
been removed from the
illustration for clarity.
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