Miller electric Engine-driven welder/ac generator User manual

Processes

Stick (SMAW)

Flux Cored (FCAW)

MIG (GMAW)

DC TIG (GTAW)

Non-Critical AC TIG (GTAW)

Air Carbon Arc (CAC-A) Cutting

and Gouging (3/16 in carbons)

Air Plasma Cutting and Gouging

with optional Spectrum models

Applications

Generator Power for:

Farm or Home Backup

Pivot Irrigation Systems

Pumps

Conveyors

Welding:

Farm Equipment Repair

General Maintenance

Fabrication

Quick

Specs

Bobcat™3 Phase Engine-Driven Welder/

AC Generator

Issued January 2008 • Index No. ED/4.33

Generator Power Output Rated at 104˚F

3-Phase: 11,000 Watts Peak, 10,000 Watts Continuous

1-Phase: 10,500 Watts Peak, 9,500 Watts Continuous

Output Range

For Stick/TIG: 50 – 225 Amps For FCAW/MIG (CV): 19 – 28 Volts

Weight 540 lb (245 kg)

Fastex™tool-free oil drain

system combined with hour

meter makes service a snap.

Heavy-duty construction! Engine,

generator barrel, electrical switches

and other components are protected

against accidental impact.

More horsepower — 23 HP gas/

25 HP LP Kohler®provides more

power for demanding weld and

generator loads.

Reliable Bobcat engine-driven

welding generators are the

industry standard for quality and

value. Multiprocess weld output,

strong generator power, and most

important — rated #1 in reliability,

make the Bobcat the welding

industry’s most popular choice.

Accu-Rated™ 11,000 watts (peak),

480 V, 3-phase power for running

pivot irrigation systems, or

emergency backup power for

milking pumps and other motors.

Accu-Rated™ 10,500 watts (peak),

120/240 V, 1-phase output provides

plenty of power to run power tools,

lights or emergency backup power

for your barn or home.

Patented 12-gallon “smart” fuel tank has a

reservoir design that minimizes the chance of

fuel backflow. Large capacity means more

running time before refueling. Fuel sight

gauges are on both sides.

The Power of Blue®

Total Parts Coverage Welder/generator and engine are

warranted for 3 years, parts and labor. Engine is warranted

separately by the engine manufacturer.

Miller Electric Mfg. Co.

An Illinois Tool Works Company

1635 West Spencer Street

Appleton, WI 54914 USA

Web Site

www.MillerWelds.com

International Headquarters

Phone: 920-735-4505

USA FAX: 920-735-4134

Canadian FAX: 920-735-4169

International FAX: 920-735-4125

ccu-Rated

™

– Not Inflated

Generator Power

Ten-degree skewed-rotor design boasts better generator

performance. See page 3 for more information.

Exclusive!

High-Impact Protective

Armor

• Protective armor with receptacle

and output stud covers provides

a virtually indestructible barrier

from damage

• High-impact resistance in all

temperatures

Other applications include:

automotive bumpers, tractor hoods

and panels, lawn mower decks,

large structural parts, etc.

Output stud and receptacle covers required by OSHA

and CSA for job site safety.

Front Panel Fuel Gauge!

LP Option!

Fully Enclosed Case!

Patented self-cooling stator barrel design

directs airflow for maximum cooling and

allows the Bobcat to perform at 100%

duty cycle even in 104˚ F (40˚ C) heat!

Bulletproof technology eliminates use of complicated circuit boards.

Engine Specifications (Subject to change without notice.)

Welding

Mode

CV/DC

CC/DC

CC/AC

Process

MIG/FCAW

Stick/TIG

Weld Output Rated

at 100% Duty Cycle

(at 104˚ F/40˚ C)

200 A at 20 V

210 A at 25 V

225 A at 25 V

Amp/Volt

Ranges

19–28 V

50–210 A

50–225 A

Generator Power

Single-Phase

Peak: 10,500 watts

Continuous: 9500 watts 120/240 VAC, 84/42 A

Three-Phase

Peak: 11,000 watts

Continuous: 10,000 watts 480 V, 13 A

Sound Levels

at Rated Output,

7 m (23 ft)

75.5 dB

(100.5 Lwa)

Net

Weight

540 lb

(245 kg)

Dimensions

H: 33 in

(838 mm)

W: 20 in

(508 mm)

D: 45-1/2 in

(1156 mm)

Specifications (Subject to change without notice.)

Engine Brand

Kohler:

3 year mfg.

warranty

Horsepower (HP)

23 HP (gas),

25 HP (LP) at 3600 RPM

Weld Speed

3600 RPM

Idle Speed

2300 RPM

Type

V-Twin cylinder,

4-cycle, OHV, industrial,

air-cooled, gasoline

Fuel Capacity

12 gal (45 L)

Oil Capacity

1.75 qt (1.7 L), 2 qt (1.9 L) with filter

Function Guide

1. Engine Hour Meter is convenient for monitoring maintenance intervals.

2. Weld Process Selector Switch makes choosing between Stick, Wire

and TIG processes easy. Switch also automatically changes polarity

with process selection to make sure the machine is set up properly to

weld with little effort or knowledge.

3. Coarse Range Control. Three Stick/TIG and one Wire range are

available for output control. Stick/TIG ranges are designed to electrode

diameters (3/32", 1/8", 5/32") making these models very easy to set.

4. Fine Adjust Control makes it easy to fine tune amperage within a

coarse range. Set control above 7 for best power while welding and to

10 for generator-only use.

5. Engine Control Switch is used to start the engine and then select

between Auto Idle and High Speed Lock.

6. Engine Choke Control is used for easy engine starting.

7. 120 VAC and 240 VAC* Covered Receptacles with Circuit Breakers

meet/exceed OSHA/CSA requirements for job site safety (optional

120 VAC GFCI receptacles available).

*For matching plug, order #119 172.

8. 480 VAC* Covered Receptacle with Circuit Breaker meet/exceed

OSHA/CSA requirements for job site safety.

*For matching plug, order #165 963.

Make deadlines, not excuses.

• 68% of service technicians, managers

and owners, recommend the Bobcat

over the competition.

• 98% of current owners are “satisfied

to very satisfied” with the Bobcat*.

*Based on an independent survey of

thousands of Bobcat owners.

Bobcat 68%

Others

Technician Recommendations

The Bobcat

Competitive

Advantage

Rated #1 in Reliability

Large 3–4 gauge leads are lugged to

heavy-duty range switches for field-

proven durability. Dust cover protects

switches from dirt and grit. Compare to

light-duty switches with smaller 6–10

gauge leads on competitive machines.

To select a generator that has enough power output in watts, add the watts

for the items you want to simultaneously run. Tools and appliances with

induction motors may require 3 –7 times the listed wattage when starting.

All data listed is approximate —check your tool/appliance for specific

wattage requirements.

Bobcat 3 Phase will easily start and run the following equipment:

TYPICAL EQUIPMENT POWER USAGE

Equipment

Pivot Irrigation (9–1 HP), 9 Tower

Pivot Irrigation (6-3/4 HP, 3–1-3/4 HP, 1–1 HP),

8 Tower with Corner Arm

Starting Watts Running Watts

Barn Cleaner (5 HP) 11,600 3000

Silo Unloader (5 HP) 12,200 4300

Portable Conveyor (1/2 HP) 3400 1000

Milker (5 HP) 10,500 2800

Hand Drill (1/2 inch) 600 600

Circular Saw (8-1/4 inch) 1400 1400

Air Compressor (1-1/2 HP) 8200 2200

Flood Lights (Vapor) 1250 1000

Refrigerator/Freezer 2200 700

Sump Pump 1300 800

Millermatic®212 MIG Welder 6500 6500

(30–210, 230 V)

Spectrum®625 6900 6900

(30 A, 230 V, 1/2 in cut)

The Bobcat Generator Power Advantage

Tools and motors are designed to operate within 10% of

120/240/480 VAC. The Bobcat’s power generator provides strong

power while keeping the voltage within 10% of 120/240/480 VAC.

This increases tool/motor performance and life.

Accu-Rated™

– Not Inflated Generator Power

Miller’s Accu-Rated™11,000 watts of

usable

peak power is delivered for a

minimum of 30 seconds. Accu-Rated means peak power is usable for

maximum generator loads such as plasma cutting, Millermatics and motor

starting. Accu-Rated peak power beats the competition’s very short-duration

peak or surge power. Use your peak power, it’s more than a number.

Smooth Power –Not Spike Power

Revolutionary ten-degree skewed-rotor design

optimizes generator performance for smoother

power—not spiked power found with other

brands. Better power — better performance.

Fuel Consumption Data

•12-gallon fuel capacity.

•On a typical job using 1/8-in 7018 electrodes (125 amps, 20% duty cycle)

expect about 20 hours of operation.

•Welding at 150 amps at 40% duty cycle uses approximately 3/4 gallon

per hour— about 16 hours of operation.

•Under a continuous load of 4000 watts of generator power, the Bobcat

would run for about 14 hours.

IDLE 2200 RPM

3750 RPM

1-Phase

Generator

Power DC WELD/

3-Phase

Generator

Power

FUEL CONSUMPTION

(Kohler 23 HP Command OHV)

2.00

1.75

1.50

1.25

1.00

0.75

0.50

0.25

U.S. GAL/HR

0 25 50 75 100 125 150 175 200 225 250

WELD AMPS AT 100% DUTY CYCLE

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

POWER KVA AT 100% DUTY CYCLE

Waveform Comparison

Bobcat

Competitor

A. 20 in (508 mm)

B. 16-1/2 in (419 mm)

C. 1-3/4 in (44 mm)

D. 6-1/16 in (154 mm)

E. 32-3/4 in (832 mm)

F. 45-3/8 in (1153 mm) (Gas)

G. 13/32 in (10 mm) diameter

Height: 33-1/2 in (851 mm)

(to top of exhaust)

Width: 20 in (508 mm)

Depth: 45-7/8 in (1164 mm)

4 Holes

Engine End

Mounting Specifications

Litho in USA

Distributed by:

Genuine Miller Accessories (For additional options and accessories, see Bobcat Lit. Index No. ED/4.4.)

Protective Covers

Heavy-duty, water-resistant and mildew-

resistant covers protect and maintain the

finish of the welder.

#195 333

For Gas models

without Protective

Cage or Running

Gear.

#195 529

For Gas models

with Protective

Cage and/or

Running Gear.

Protective Cage

with Cable

Holders

#195 331

Rugged cage with

cable holders

protects your investment. Can be used with

running gear, Gas Cylinder Mounting

Assembly, LP Tank Mounting Assembly,

or with trailer.

All-Purpose

Running Gear

#300 396 Gas/LP

Includes two heavy-duty

15 in tires with inner

tubes, two 8 in rubber

swivel casters and a heavy-duty handle.

Recommended for all surfaces and

applications, and is easy to move around

the job site.

All-Terrain Running

Gear #300 457

Two heavy-duty 15 in

and two 10 in pneumatic

tires with inner tubes

and a rugged handle

provide maximum maneuverability.

Note: Cannot be used with Gas Cylinder Mounting

Assembly or LP Tank Mounting Assembly.

LP Tank Mounting

Assembly

#195 329 LP

Designed for use with

All-Purpose Running

Gear, Protective Cage,

or by itself. Includes

bracket and clamp to mount 33 and 43 lb

tanks horizontally, and hose with fittings to

converter.

Note: Cannot be used with Gas Cylinder

Mounting Assembly.

Remote Oil Drain/

Filter Kits (Kohler)

#300 106 Field.

Rear Mounted (shown)

Oil can be drained from

rear of machine.

#300 236 Field. Front/Chassis Truck Mounted

Oil can be drained from the front of the

machine or below the truck, mounted on

the chassis.

Makes servicing easy when engine drive is

mounted in tight spots.

Order the following from Miller Service Parts.

Full KVA Plug Kit

#119 172 Field

120/240 VAC, 50 amp plug

(NEMA 14-50P) to fit full

KVA receptacle.

Full KVA 3-Phase Plug #165 963 Field

480 VAC, 30 A plug (NEMA L16-30P)

to fit 3-phase receptacle.

Engine Tune-Up Kits

#230 015 Field. Kohler CH23 (Gas)

#180 096 Field. Kohler CH20 (LP)

and CH730 (LP)

Tune-up kits include spark plugs

(gas/LP models) and engine filters.

TIG Adapter with Extension #195 350 Field

Extension with Power Cable Adapter

45V11. Required for Scratch Start TIG

welding with Bobcats.

Power Source Stock No. Description Qty. Price

Bobcat™3 Phase #907 255 Base machine, CC/CV, AC/DC, 11,000 Watts

(23 HP gas, 25 HP LP Kohler) #907 255-01-1 With LP Gas

Accessories

Remote Oil Drain and Filter Kit #300 106 Field. 28-Inch Kit. Kohler engine only

#300 236 Field. 52-Inch Kit. Kohler engine only

Full KVA Plug #119 172 Field.