Generator Restraint; Generator Compartments; Compartment Seams - Generac Power Systems NP-30G Series Owner's Manual And Installation Instructions

GENERATOR RESTRAINT
Use four 3/8"-
i
6 hardened steel bolts (Grade 5} to
fasten the generator to the supporting frame or the
support tubing. These bolts must pass through (a) the
generator mounting base, (b) the compartment floor,
if a compartment is used, and (c) the supporting
framework (Figure 14). All bolts must be long enough
so that when tight, at least 3 threads are visible past
the retaining lock nuts. Refer to "COMPARTMENT"
section for location of generator mounting holes.
Figure 14- Typical Generator Restraint
VEHICLE
CHASSIS
METAL LINED
BOTTOM
GENERATOR COMPARTMENTS
The generator set may or may not be installed inside
a compartment that is constructed specifically for
housing a generator. This section applies to generator
compartments when they are installed. The following
general rules apply to compartments:
• The generator compartment should be either
constructed of, or lined with, 26 gauge galvanized
steel.
IMPORTANT: ALUMINUM IS NOT AN ACCEPT-
ABLE ALTERNATIVE TO GALVANIZED STEEL,
DUE TO ALUMINUM'S LOW MELTING POINT.
• If the compartment is lined with galvanized steel,
it may be constructed of any material. Generac
recommends that the compartment be construct-
ed of 1/2-inch thick plywood, with the floor made
of a double thickness of plywood for added
strength.
• All seams, splices and joints of the compartment
walls (unless vapor tight by design) should be
caulked.
IMPORTANT: CAULKING MUST BE DONE SO
THAT THE CAULKING MATERIAL WILL STAY IN
PLACE PERMANENTLY. PRESSING SUCH MATE-
RIALS AS PUTTY TAPE ONTO JOINTS AND
SEAMS WILL NOT MEET THAT REQUIREMENT. A
HIGH QUALITY SILICONE RUBBER SEALANT IS
RECOMMENDED.
• Holes and openings through the compartment
walls for passage of electrical conduit, conduc-
tors, etc, mto vehicle living area must be sealed
vapor-tight with silicone rubber base sealant.
• If you use flexible metal conduit, seal the conduit
at the end where it terminates inside the junction
box. Flexible metal conduit is NOT vapor tight
along its entire length.
• Seams and joints of the galvanized steel
(whether used as a liner or the compartment
itself) must be lapped and mechanically secured.
Such seams may be manufactured, welded, bolt-
ed, riveted, or screwed. Manufactured lock
seams are shown in Figure 15.
Figure 19- Types of Lock Seams
- -
---~----~~
- - - _ _ _ f . _ -
---~
- -
-~---~
- -
--~~-~-----~- ---~~~------
FOLD LOCKED STANDING
GORDON SEAM
DOUBLE LOCK
OFF SET
DOUBLE SEAM
STANDARD LAP JOINT
-16-
ACME LOCK
LOCK SEAM