Pentair PR AQUA ROTOFILTER Installation And Operation Manual page 9

SECTION 3: SHIPPING AND STORAGE
Figure 2. Proper lifting procedure
1: Lifting Lug
2: Sling (Nylon or Canvas)
3: Spreader Bar
Slings should always be made of nylon or canvas,
and should be attached to the Rotofilter in one of
three ways:
• Passed through a shackle securely connected to
the lifting lug
• Passed directly through the lifting lug
• If lugs are not present, passed beneath the
underside of the frame
The minimum length of the sling should allow
the distance between the spreader bar and the
Rotofilter lifting points to be 1.5 times the distance
between the lifting points. See Figure 3.
Figure 3. Proper sling length (not to scale)
1: Distance Between the Lifting Points (D)
2: 1.5 Times the Distance Between the Lifting
Points (1.5 x D)
Do not attempt to lift using slings around the drum
or any plumbing fittings. Doing so will damage the
Rotofilter and void the warranty.
Use a pad between the sling and the Rotofilter, as
pressure from the sling may mar the surface finish
of the unit.
Rotofilter Frame (RFF) models have external lifting
lugs provided on each corner of the unit, each with
a hole to provide enough room to insert a shackle
or sling.
Molded (RFM) 48-series and 60-series models
should be lifted by the support bridge at the front
of the unit, and internally-mounted lifting lugs at the
back of the unit.
Molded (RFM) 32-series models should be lifted
using two 75mm (3 in) wide slings at a minimum,
looped underneath the housing and placed as close
to each end as possible.
Ultraviolet (RFUV) models: Do not install UV
Modules until the Rotofilter has been installed and
properly anchored.
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
9