4-1
Section 4. Installation
INSTALLATION REQUIREMENTS
Generator set installations must conform to local building
codes, fire ordinances, and other local, state and federal
regulations.
Installation requirements include:
•
Level mounting surface
•
Adequate cooling air
•
Adequate fresh induction air
•
Discharge of circulated air
•
Discharge of exhaust gases
•
Electrical connections
•
Fuel connections
•
Accessibility for operation and servicing
•
Isolation from vibration
•
Minimal noise levels
For more detailed installation instructions, consult Onan
Application Manual T-030, or contact an authorized
Onan service representative.
Incorrect installation, service, or parts
replacement can result in severe personal injury,
death, and/or equipment damage. Service person-
nel must be qualified to perform electrical and me-
chanical component installations and service. In-
stallation must comply with all state and local codes.
GENERATOR SET LOCATION
Provide a location for the generator set that is dry, clean,
dust-free, well-ventilated, and protected from the
weather.
The left side of the set, where generator air is discharged,
requires 3 inches (76 mm) clearance from the wall, so the
set can rock on its mounts. There should be at least 24
inches (610 mm) clearance around all other sides for
service access.
MOUNTING
A permanent genset installation must have a sturdy, level
mounting base of concrete, heavy wood or structural
steel. This base should be raised if possible, for easier oil
changing and set operation. The set may be bolted into
position.
On all installations, assemble the mounting cushions,
washers and spacer bushing carefully. The spacer bush-
ing prevents compression of the snubber (upper rubber
cushion). Place the cushions (Figure 4-1) under the en-
gine and generator mounting feet. Use cushions with a
higher number (part number is shown on cushion) on the
heavier generator end. Space the mounting bolts in the
floor or the base with distances between hole centers as
shown in Figure 4-2 for either the DJB or the DJE.
The oil filter can be punctured easily by
the end of the mounting bolt. For this reason, pro-
vide at least 1/2-inch (12.7 mm) clearance between
the oil filter and the end of the mounting bolt, to avoid
puncturing the filter.
CS1370-1
FIGURE 4-1. MOUNTING CUSHION INSTALLATION
CARRIAGE
BOLT
SQUARE
NUT
LOCK
WASHER
FLAT
WASHER
SNUBBER
GENERATOR
OR OIL BASE
MOUNTING
FOOT
CUSHION
MOUNTING SPACER
BUSHING
FLAT
WASHER
1/16"
(1.59 mm)
