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June 1992
Form:
OM-154 500
Effective
With
Serial
No. KC256471
MW15O
''\~7
~r
OWNERS
MANUAL
~ IMPORTANT: Read and understand the entire
contents
of this
manual,
with
special emphasis
on
the
safety
material
throughout
the
manual,
before
installing, operating,
or
maintaining
this
equipment.
This
unit
and these
instructions
are
for
use
only by
persons trained and
experienced
in the
safe
operation
of
welding
equipment.
Do
not
allow untrained persons
to
install, operate,
or
maintain this unit.
Contact your distributor
if you do
not
fully
understand these instructions.
L
1~oLsfi
coven
5/92*
-
ST-155
63
PRINTED
IN
USA
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Summary of Contents for MAC TOOLS MW15O
- Page 1 Form: OM-154 500 June 1992 Effective With Serial No. KC256471 MW15O 1~oLsfi ''\~7 OWNERS MANUAL ~ IMPORTANT: Read and understand the entire with contents of this manual, special emphasis safety material manual, before installing, operating, maintaining this equipment. This unit...
- Page 2 following safety alert symbol signal words used throughout this manual to call attention identify different levels of hazard and special instructions. WARNING WARNING statements which must be followed to avoid serious identify procedures practices personal loss of life. injury CAUTION CAUTION which must be followed to avoid minor statements...
- Page 3 SHEET ERRATA .ApriI22, 1993 FORM: OM-154 500 Use above FORM number when ordering manuals. extra After this manual printed, refinements occurred. This sheet lists equipment design exceptions data later in this manual. appearing NOTE ~ This unit is equipped with running gear and has been renamed the MW1 50K.
- Page 5 Watch for fire, keep fire extinguisher nearby. WELDING fire explosion. can cause off from the floor, bulkhead, Sparks spatter weldin9 that welding ceiling, partition arc. aware metal, weld flying sparks spatter, the hidden side. fire cause and hot fires and workpiece, equipment cause...
- Page 6 SECTION SPECIFICATIONS Power Source Table 1-1. Welding Description Specification Current/Constant (DCICV) Output Direct Voltage Type 21 Volts Duty Cycle Rated Weld Output Amperes, Input Power Single-Phase; At 230 Volts AC Type Rated Input Amperes Output kVN3.9 kW KVAIKW Used At Rated Output Max.
- Page 7 SECTION 2INSTALLATION Work Clamp 2-1. Installing Insulator Bolt Smaller Hole Work Clamp Tabs Be nd tabs around work cable. Tools Needed: Work Cable From Unit In., 7/16 ST.025 I9O~C Work Clamp Figure 2-1. Installing Supply 2-2. Installing WARNiNG BUILDUP OF SHIELDING GAS C YLINDERS explode damaged.
- Page 8 2-4. lnstallin.g Welding Knob Securing Drive Assembly Gun End Loosen securing knob. Insert end until it through front panel opening drive bottoms against assembly. Tighten knob. Trigger Plug Insert into receptacle tighten threaded collar. Close door. Ref. ST.t46 629~B Gun Connections Figure 2-4.
- Page 9 Table 2-1. Electrical Service Requirements* Input Voltage Rated Output Input Amperes values calculated 1990 edition 01 Electrical Code These from National (NEC). Circuit breaker range thuan 200% not more rated input amperage welding Amperes Circuit Breaker Size Range 31 thru (Article 630.t2(a) NEC).
- Page 10 SECTION OPERATION READ BLOCKS beginning of manual before proceeding. PARTS ARCING MOVING injury. switch. damage can cause away from pinch points such drive rolls. change VOLTAGE Keep switch position while welding. all doors, panels, guards closed Keep covers, securely place. Arcing inside switch damage...
- Page 11 MAINTENANCE & TROUBLESHOOTING SECTION WARNING ELECTRIC- SHOCK MOVING PARTS kill. Injury. can cause not touch live electrical parts. Keep away from moving parts. and disconnect Turn welding power source, Keep away from pinch pOints such drive rolls. power before input inspecting, maintaining, servicing.
- Page 12 DrIve Assembly Maintenance 4.3. i~~J .r#~E~-jlft READ SAFETY BLOCKS at start LtT~ before Section proceeding Turn OFF unplug unit. Spool Wire Gun Contact Tube wire welding at contact tube. Retract wire onto spool secure. Pressure Roll Cotter Pin Screw Bearing Remove bearing shown.
- Page 13 Gun Maintenance 4-4. READ SAFETY BLOCKS at start Section before proceeding. damage equipment. FLYING METAL CHIPS AND DIRT injury can cause safe direction when blowing out with compressed air. Point gun away from people cwan,toI Turn unit. unplug Tools Needed: Wire Spool Cutwelding...
- Page 14 Wire Drive/Gun Trouble Remedy Section Electrode wire feeding during Straighten gun cable and/or replace damaged stops parts. welding. _____________________________________________________ ___________ drive roll Adjust pressure. Readjust hub tension. tube Replace contact blocked. liner if Clean replace wire inlet dirty plugged. guide 4-3.4-4 slipping Replace...
- Page 15 S C - 1 5 3 _ _ _ _ _ _ _ _ _ _ _ R I I R I T ) ( S ~ G ( P O E C O I L 3 I C ( T ~ I - ~ 3 0 6 ( T E I - P o s 1 3 4 ( I ) - B E G ) ~ I ~ I I J...
- Page 16 (1) m C) z 0) r Cl) -I S T - 1 5 5 A s s e m b l y M a i n 6-1. F i g u r e UI 00 -U...
- Page 17 Parts For Main Assembly included with the item listed dot(s) directly above. NOTE: All items indented Item Part Item Part item Part Description DescriptIon Description 057358 Bushing 087341 Foot 089 899 Latch Transformer 147569 Baffle 134 464 Warning Label Coil 146943 108358 Contactor...
- Page 18 Suggested Welding Settings Material Thickness Wire Wire Type, Operator Control Shielding Gas, Diameter 3/16 1/4 in. And Flow Rate (inch) Settings 16 ga. 18 ga. (6.4 mm) (4.8 mm) (3.2 Voltage Wire Speed E7OS-6 Voltage .030 20 c~h+ Speed Wire Voltage .035 ~________...