Kohler 20--2800 kW manual 1 Generator Set with Lifting Bars in Skid

DA 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.

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	TP-5700-2
1.	Spreader bars may be necessary to protect generator set
2.	Lifting bars

Figure 2-1 Generator Set with Lifting Bars in Skid

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TP-5700-2

1. Spreader bars may be necessary to protect generator set

Figure 2-2 Generator Set with Lifting Hooks in Skid

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	TP-5700-2
1.	Lifting fixture

Figure 2-3 Generator Set with Lifting Fixture

4 Section 2 Load and Transport TP-5700 7/93