PP8 Plus
21
IN50001 Rev. C 04/30/2008
3. Cables: Check wire rope cables for wear or damage. Any cable with broken wires,
severe corrosion, excessive stretch, deformed strands, variations in diameter (necking), or
any change from its normal appearance, must be replaced. If any cable is found to be in
need of replacement, the entire cable set must be replaced immediately. Refer to
fi
gures
below.
4. Sheaves: Check sheaves (pulleys) for wear or damage, i.e. wobble (tilt), cracks, loose on
pin, or excessive noise during operation.
5. Sheave Pins: Check for loose or missing sheave (pulley) pins.
6. Locking Latches and Slack Cable Devices: Watch locking latches and slack cable devices
during lift operation to ensure that latches work properly and line up with slots in latch plate
located in columns.
Monthly Inspection & Maintenance
1. Cables
1.1 Clean wire rope cables with lift in both lowered and raised position by spraying with
Penetrating Oil and wiping the cable down.
1.2 Adjust cables using procedures on following pages.
2. Slack Cable Device: Inspect slack cable devices using procedure on page 5.
3. Column Anchor Bolts: Check column anchor bolts for tightness. Re-torque anchors bolts
to 65 ft/lbs. If anchors do not tighten to the required installation torque, replace concrete
under each column base per installation instructions. Let concrete cure before installing lifts
and anchors.
4. Columns: Look for corrosion, giving special attention to the area at the base of the
column. Check severely corroded areas by pecking with an awl or welder’s chipping
hammer. If column is corroded through at any point it must be replaced immediately. If not
corroded through, remove old paint and rust scale, then coat with a high quality corrosion
resistant paint.
A thorough inspection of the lifting system must be performed quarterly by quali
fi
ed
lift service personnel; more frequently (monthly) under extreme service conditions such as
outside installations or high usage (10 or more cycles per day, etc.).
Quarterly Inspection & Maintenance
1. Cables
1.1 Inspect cables in both lowered and raised position. The cables may also be viewed
through various inspection holes and openings in yokes and runways. Check all the
following:
a. That cables have no broken wires visible, reference Daily Inspection & Maintenance.
b. That cables are free of severe corrosion and pitting, reference Daily Inspection &
Maintenance. A light surface corrosion on exposed outer wires is normal. Penetrating
