Furukawa Unic URW370C4U Series, Руководство по эксплуатации и техническому обслуживанию

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13-10
MAINTENANCE AND INSPECTION OF CARRIER
Standard: 1.06~1.38in.(27~35mm)
Adjust if less than 0.78in.(20mm)
7.
◆
Check for rubber crawler
/ Adjustment
Do not check rubber crawler tension with the crane body raised
above
the ground.
It is very dangerous because an accidental fall of the crane may
happen
during inspection.
Be sure to carry out tension check with the crane touched the ground.
BS
Mark “BS”
■
Inspection
Adjust the tension after 30 hours
of operation if the new rubber
crawler has been mounted.
Lug
Height of lug
• Replace the rubber crawler when the lug
height becomes less than 1/8in.(3mm).
WARNING
Check the rubber crawler for wear and for
tension as the wear varies according to oper-
ating and ground conditions.
• Check rubber crawler tension with the seam
of rubber crawler positioned at the cen-
ter between wheels at the other side of the
ground.
• Putting the mark “BS” at the center between
the wheels on ground side allows the seam
to be positioned at the center of wheels
on the other side.
Wrong positioning shows larger slack of
rubber crawler than the proper tension
which results in re-adjustment.
• If the tension is too tight, it shortens service
life of wheel sprocket.
CAUTION