Miller Bobcat 225 NT, Руководство пользователя

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Bobcat 225 NT
Bobcat 225 NT
Non-Critical TIG (GTAW)
Welding
Stick (SMAW) Welding
MIG (GMAW) Welding
Description
Processes
Features
New full case, rugged housing. Protects engine
and internal components from potential
damage. 60% more sheet metal built into this
durable design compared to the previous
model.
Enlarged, 10 gallon fuel tank and new fuel
gauge. 18% more capacity than the previous
Bobcat series. Larger capacity means more
running time before refueling. Standard fuel
gauge is accurate and easy to read.
Top fuel/oil fill. Fuel fill located on top of unit
allows for easier, more convenient refueling,
plus an overflow cavity directs any spillage
away from the unit. Oil dipstick and fill cap are
easily accessed on top of unit. Fastex oil drain
does not require tools.
New “smart” fuel tank design. Patent-pending
design of the reservoir minimizes the chance of
fuel backflow.
Rotatable exhaust pipe. Adjust exhaust pipe in
any direction – 360 degree rotation possible.
The new muffler design provides quieter,
improved sound quality.
8000 watts of AC auxiliary power. Dual
purpose welder and power generator provides
needed power at job sites. Auxiliary power
receptacle supplies up to 35 amps of 120 or
240 volts ac to a single load. (Optional GFCI
kits available.)
1. Safety Precautions – Read Before Using 1 .
2. Definitions 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Specifications 9 . . . . . . . . . . . . . . . . . . . . . . . . .
4. Installation 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Operating Welding Generator 16 . . . . . . . . . . .
6. Operating Auxiliary Equipment 17 . . . . . . . . .
7. Maintenance (Onan-Powered Units) 20 . . . . .
8. Maintenance (Kohler-Powered Units) 26 . . . .
9. Troubleshooting 31 . . . . . . . . . . . . . . . . . . . . . . .
10. Electrical Diagrams 33 . . . . . . . . . . . . . . . . . . .
11. Auxiliary Power Guidelines 35 . . . . . . . . . . . .
12. Stick Welding (SMAW) Guidelines 42 . . . . . .
13. MIG Welding (GMAW) Guidelines 50 . . . . . .
14. Parts List 60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options and Accessories
Warranty
Section Page
Table of Contents
Miller offers a Technical Manual
which provides more detailed
service and parts information for
your unit. To obtain a Technical
Manual, contact your local
distributor. Your distributor can also
supply you with Welding Process
Manuals such as SMAW, GTAW,
GMAW, and GMAW-P.
Call
1-800-4-A-
MILLER
for your local
Miller distri-
butor.
Your distributor gives
you ...
Service
You always get the fast,
reliable response you
need. Most replacement
parts can be in your
hands in 24 hours.
Support
Need fast answers to the
tough welding questions?
Contact your distributor.
The expertise of the
distributor and Miller is
there to help you, every
step of the way.

The following terms are used interchangeably in
this manual: Stick = SMAW, TIG = GTAW,
MIG = GMAW or Wire
The Bobcat 225 NT begins a new tradition in
portable engine-driven welding generators. The
new tradition (NT) design includes all the proven
capabilities of the famous Bobcat 225 Plus
combined with innovative features that meet the
multi-purpose needs of contractors at the job sites.
Standard engine hour meter. Helps maintain
scheduled preventative maintenance.
Two-pole alternator design. Produces
dependable single-phase welding arc.
CV setting with fine adjustment. Premium
performance control when MIG (60/10) and
Flux Cored wire welding. Use CV-DC weld
output for MIG and flux cored wires.
Three overlapping amperage ranges in CC
mode, with fine adjustment. Provides precise
arc control when Stick welding.
225 amps of AC weld output and versatile
AC/DC output for Stick. Multi-process
capability handles a variety of welding jobs.
AC/DC output perfect for most common Stick
electrode types and sizes.
Process selector switch. Quick, simple
change from one weld process to another, AC
to DC straight or DC reverse polarity.
Two engine choices. Customize the new
Bobcat NT with your choice of two gasoline
engines: Onan 16 HP or Kohler 18 HP.
Miller’s True Blue

Warranty. New for 1997!
We’ve extended our warranty on welding
generators to 3 years – parts and labor.
Engine is warranted separately by the engine
manufacturer.
The engine exhaust from
this product contains
chemicals known to the
State of California to
cause cancer, birth
defects, or other
reproductive harm.
WARNING