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7.4 Precaution on maintenance
Caution
1. Cut the power supply during maintenance and replacement of the product.
[ Maintenance frequency ]
Preform maintenance according to the table below.
Appearance check
Check belt
Inspection before daily operation
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Inspection every six months *
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Inspection every 250km *
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Inspection are every five million times *
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*
Either of inspection early time is selected.
[Items for visual appearance check]
1. Loose set screws, abnormal dirt.
2. Check of flaw and cable joint
3. Vibration, noise.
[Items for belt check]
Stop operation immediately and replace the belt when belt appear to be like photos below.
a. Tooth shape canvas is worn out
Canvas fiber becomes fuzzy. Rubber is removed and the fiber becomes whitish. Lines of fibers
become unclear.
b. Peeling off or wearing of the side of the belt
Belt corner becomes round and frayed thread sticks out.
c. Belt partially cut
Belt is partially cut. Foreign matter caught in teeth other than cut part causes flaw.
d. Vertical line of belt teeth
Flaw which is made when the belt runs on the flange.
e. Rubber back of the belt is softened and sticky.
f. Crack on the back of the belt
Teeth become fuzzy