Preparations For Operation; Torch Connection; Air Source - ESAB Cutmaster 120 Manual Del Usuario

ESAB CUTMASTER 120
10. Pressure Indicators
PSI BAR
MAX MAX
90 6.3
85 5.9
80 5.5
75 5.2
70 4.8
65 4.5
MIN MIN
The Indicators will illuminate according to the pres-
sure set by the Pressure Control Knob (number 4).

4.02 Preparations for Operation

At the start of each operating session:
WARNING
Disconnect primary power at the
source before assembling or disas-
sembling power supply, torch parts,
or torch and leads assemblies.
Torch Parts Selection
Check the torch for proper assembly and appropriate
torch parts. The torch parts must correspond with
the type of operation, and with the amperage output
of this Power Supply (120 amps maximum). Refer to
Section 4T.07 and following for torch parts selection.

Torch Connection

Check that the torch is properly connected. Only
ESAB model SL100 / Manual or SL100 / Mechani-
cal Torches may be connected to this Power Supply.
See Section 3T of this manual.
Check Primary Input Power Source
1. Check the power source for proper input volt-
age. Make sure the input power source meets
the power requirements for the unit per Section
2, Specifications.
2. Connect the input power cable (or close the main
disconnect switch) to supply power to the system.

Air Source

Ensure source meets requirements (refer to Section
2). Check connections and turn air supply ON.
4-2
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Connect Work Cable
Clamp the work cable to the workpiece or cutting
table. The area must be free from oil, paint and rust.
Connect only to the main part of the workpiece; do
not connect to the part to be cut off.
Power ON
Place the Power Supply ON / OFF switch to the ON
(up) position.
pressure for power supply operation and the cooling
fans turn ON.
Set Operating Pressure
1. Place the Power Supply Function Control knob
2. For Standoff cutting, adjust gas pressure from 70
OPERATION
Art # A-04509
AC indicator turns ON.
Gas indicator turns ON if there is sufficient gas
NOTE!
Minimum pressure for power supply
operation is lower than minimum for
torch operation.
The cooling fans will turn ON as
soon as the unit is turned ON. After
the unit is idle for ten (10) minutes
the fans will turn OFF. The fans will
come back ON as soon as the torch
switch (Start Signal) is activated or if
the unit is turned off, then turned ON
again. If an over temperature condi-
tion occurs, the fans will continue to
run while the condition exists and for
a ten (10) minute period once the
condition is cleared.
to the SET position.
- 85 psi / 4.8 - 5.9 bar (LED's in center of control
panel). Refer to the Standoff chart for pressure
setting details.
Gas will flow.
300X5398