Product Manual

4
Introduction
ABOUT THIS MANUAL
This manual covers the operation and maintenance
of the HGJAA, HGJAB and HGJAC Series of gener-
ator sets (gensets). Each operator should study this
manual carefully and observe all of its instructions
and safety precautions. Keep this manual and the
Installation Manual with the other vehicle manuals.
Operation, Periodic Maintenance and Trouble-
shooting provide the instructions necessary for
operating the genset and maintaining it at top per-
formance. The owner is responsible for performing
maintenance in accordance with the PERIODIC
MAINTENANCE SCHEDULE (Page 15). This man-
ual also includes genset specifications, information
on how to obtain service, and information for Califor-
nia users.
WARNING
This genset is not a life support sys-
tem. It can stop without warning. Children, per-
sons with physical or mental limitations, and
pets could suffer personal injury or death. A per-
sonal attendant, redundant power or an alarm
system must be used if genset operation is criti-
cal.
NAMEPLATE
Model and Serial Numbers: Have the model and
serial numbers handy (gray boxes, Figure 1) when
contacting an Onan dealer for parts, service or prod-
uct information. Each character is significant. (The
last character of the model number is the specifica-
tion letter, which is important for obtaining the right
parts.) Record these numbers in the boxes in Fig-
ure 1 so that they are handy when you need them.
Genuine Onan replacement parts are recom-
mended for best performance and safety.
Federal Emissions Compliance Period: The
Federal Emissions Compliance Period referred to
on the nameplate indicates the number of operating
hours for which the engine has been shown to meet
Federal emissions requirements. Category
C = 250 hrs, B = 500 hrs, A = 1000 hrs.
RECORD NUMBERS HERE
MODEL NUMBER:
SERIAL NUMBER:
D000012345
7HGJAA−97A
[The engine family designation, engine displacement, state-
ment of compliance with the applicable EPA and / or California
emissions regulations, including the compliance period or
category, appear in this block on the actual nameplate on the
genset.]
FIGURE 1. TYPICAL NAMEPLATE