Kohler Generator Sets 20--2800 kW - Manual (Page 16)

TP-5700 7/93 4 Section 2 Load and Transport
D A four-point lifting method is necessary to lift the
generator set. To maintain generator balance during
lifting, the lifting apparatus must utilize the four skid
lifting holes mentioned in the previous paragraph.
One method of lifting standby generators uses an
apparatus of hooks and cables joined at a single
rigging point. See Figure 2-2. The use of spreader
bars is necessary with this method to avoid damage
to the set during the lifting procedure. The spreader
bars should be slightly wider than the generator skid
so the set is not damaged by lifting cables and only
vertical force is applied to the skid while lifting. The
generators may also be lifted by placing bars through
the skid lifting holes and attaching hooks to the ends
of the bars. See Figure 2-1. Be sure the bars are
properly sized for the weight of the generator set.
Precautions must be taken to prevent the lifting hooks
from sliding off the ends of the bars. Spreader bars
may be necessary with this arrangement if lifting
cables are in contact with the set. A specially
designed lifting fixture is often used to lift the larger
standby generators. The fixture usually includes
adjustable cables to adapt to different size generators
and
to compensate for unit imbalance. See
Figure 2-3. In all cases, be sure the components of
the lifting device (cables, chains, bars) are properly
sized for the weight of the generator set.
TP-5700-2
1. Spreader bars may be necessary to protect generator set
2. Lifting bars
1
2
Figure 2-1 Generator Set with Lifting Bars in Skid
TP-5700-2
1. Spreader bars may be necessary to protect generator set
1
Figure 2-2 Generator Set with Lifting Hooks in Skid
1
TP-5700-2
1
1. Lifting fixture
Figure 2-3 Generator Set with Lifting Fixture