Direct Lift PP8 Plus Long - Manual (Page 18)

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3. Cylinder - Vent: the piston seal of the cylinder is out. Rebuild or replace the cylinder.
• Lift makes excessive noise / vibrates
Excessive noise from the lift is normally caused by the following:
1. Cross beam ends are rubbing the columns. Readjustment needed.
2. Cylinder too tight, load lift half capacity and cycle up and down a few times to break in.
3. May have excessive wear on cable sheaves or shafts. Replace them.
Cable Inspection Guide
Maximum Allowable Cable Necking
Nom. Cable Diameters Max. Reduction in Diameter
Up to 5/16” 1/64”
3/8” to 1/2” 1/32”
9/16” to 3/4” 3/64”
7/8” to 1-1/8” 1/16”
1-1/4” to 1-1/2” 3/32”
Typical Good Cable
Cable With Broken Wires
Cable With Severe Corrosion Cable With Necking