GAR CUT (V. PROFESSIONAL). Instructions Manual.
16
3.3 CUTTING PROCESS. GENERAL RECOMMENDATIONS.
)
Before proceeding to carry out the cut, the
correct cutting intensity must be determined
depending on the work to be carried out.
)
When inserting a new electrode in the cutting
torch proceed to brush it to eliminate possible
surface insulating layers.
&
"Polish the electrode"
Carry out this operation whenever there are
problems in igniting the arc.
)
Form the pilot arc outside the part. Before
forming the arc we recommend pressing the
pushbutton slightly in order to have a prior
airflow.
)
If, after quite a long cutting process, we see
that the cutting torch is heating up, we advise
letting the post-flow of air cool down the
torch.
)
Maintain the nozzle in contact with the piece
to be cut. The further the nozzle is away from
the part to be cut, the cutting power
decreases.
)
Determine the correct cutting speed. The
penetration as well as the cutting flash
depend directly on the speed used in the
process. The correct speed is considered to
be that which causes a maximum inclination
of the arc projected of 7 to 15º with respect
to the perpendicular of the part.
)
When you are going to finish the cutting
operation (keeping the pushbutton pressed
down) separate the torch from the part, the
arc will automatically go out. With this action
we increase the life of the main contactor of
the equipment.
,
Do not activate the control switches during
the cutting process.
,
Any elements, accessory or instrument which
is added to the equipment must maintain the
basic safety conditions of the equipment. All
added equipment will comply with the
Standards and Regulations in force.
)
Do not prolong the action of the pilot arc for
more than three seconds.
3.4 CUTTING CYCLE CARRIED OUT BY THE GAR CUT (V. Industrial) EQUIPMENT.
PARAMETER ADJUSTMENT. ADJUSTMENTS IN ELECTRONIC PLATE.
ONLY TO BE CARRIED OUT BY SPECIALISTS.
TECHNICAL ASSISTANCE SERVICE
When the pushbutton of the torch is pressed, the
electronic control system of the GAR CUT equipment
begins to carry out what we call cutting cycles. There
are some adjustment trimmers on the electronic plate
which control the times of each cycle phase.
- ADJUSTMENT TRIMMERS.
- Tpsf : Time adjustment trimmer of the post-flow
phase.
- Tprf: Time adjustment trimmer of the pre-flow
phase.
- Th.f : Adjustment trimmer of the action time of the
ignition system with H.F.
Fig. 5 – View of the electronic plate SCP-1.
Tpsf = 45 sec.
Tprf = 0.3 sec.
Thf = 1.5 sec.
