Kohler 15RYG, Installation Manual

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TP-6329 8/07 25 Section 3 Installation Instructions
3.3 Lifting Generator Set
Unbalanced weight.
Improper lifting can cause severe
injury or death and equipment
damage.
Do not use lifting eyes.
Lift the generator set using lifting bars
inserted through the lifting holes on
the skid.
WARNING
Open generator sets weigh approximately 325 kg
(720 lb.). Enclosed units weigh approximately 500 kg
(1100 lb.). Use equipment that is rated for the generator
set’s weight to lift the unit into place.
Follow these general precautions when lifting all
generator sets.
When lifting housed units, lift the
weather enclosure and generator set together as one
unit.
D
Do not lift the generator set using the lifting eyes
attached to the engine and/or alternator. These eyes
cannot support the generator set’s weight. Instead,
insert lifting hooks or lifting bars through the four holes
in the mounting skid. The placement of the holes
prevents the lifting cables from damaging the
generator set components and maintains balance
during lifting.
D
If the lifting cables contact the air cleaner, guards, or
other protruding components, use spreader bars on
the cables.
If the cables still do not clear the
protruding component(s), temporarily remove the
component(s).
3.4 Mount and Ground Generator
Set
1. Place the generator set on the concrete mounting
pad. Secure the generator set with mounting bolts
anchored in the concrete pad.
2. Ground the generator set. The grounding method
must comply with NEC and local codes. Connect
the grounding strap to the generator set ground
lug,
terminal GRD inside the controller
compartment. See Figure 3-1.
Kohler generator sets are shipped with the
generator neutral attached to the generator in the
junction box. At installation, the neutral can be
grounded at the generator set or lifted from the
ground stud and isolated if the installation requires
an
ungrounded neutral connection at the
generator. The generator set will operate properly
with the neutral either bonded to ground or isolated
from ground at the generator.
Various regulations and site configurations
including the National Electrical Code (NEC), local
codes, and the type of transfer switch used in the
application determine the grounding of the neutral
at the generator. NEC 2002 Section 250.20 is one
example that has a very good explanation of the
neutral grounding requirements for generators.
GM32850B-B
1. Neutral (L0) connection
2. Ground (GRD) connection
3. Relay interface board (RIB; standard 3--relay board shown)
4. Line circuit breaker
5. Load lead access opening
4
3
5
2
1
Figure 3-1 Generator Set Electrical Connections
3.5 Generator Set Electrical
Connections
Note: Have a licensed electrician make the following
electrical connections.
All connections must
comply with state and local codes.
Size the wire according to the length of run and 115% of
the circuit current (amperage) as directed by the
National Electrical Code
r
(NEC) in ANSI/NFPA 70. See
Figure 3-1 and refer to the wiring diagrams in Section 7,
Diagrams and Drawings.