Porter 219 Series, Installation, Operation And Maintenance Manual

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7. Inspect Hoisting Cable
– Check cable for kinking and fraying. The best method is to take an
oily or grease-filled rag and rub along the cable. The rag may hit broken strands of cable and
snag. If the snags appear approximately ten times in a ten (10) foot length of cable, the cable
should be replaced. This procedure not only checks the cable, but lubricates it for longer wear.
Also, make certain the cable wraps evenly on the drum. Refer to the instructions in this manu-
al for correcting an uneven cable wrap.
Note
– The grinding noise of the hoist cable against the strands already wrapped on the winch
-hoisting drum is normal with this hoist system.
8.
Inspect All Pulleys
– It is advisable to check all pulleys, checking the sheave bearing and
shaft for excessive wear, replacing if necessary. Lubricate bearing at assembly.
9.
Safety Straps
– Check Saf-Strap to make sure it retracts properly into the housing unit. Also
inspect strap tie-off on the equipment, ensuring it is securely attached, and all bolts. It is rec-
ommended that a safety lock be used on any backstop which folds over a spectator bleacher.
Consult factory for details if this unit was not included on the original installation.
10.
Structure Tubes and braces -
Ensure all support tubes are free of bends, dents, or other damage.
Inspect structure welds for any sign of abnormal wear.