Hypertherm HPR130 Auto Gas Preventive Maintenance Program - Manual (Page 17)

HPR130 Auto Gas Instruction Manual 808580 17
Preventive Maintenance Program
Examine the gas line connections
Spray all of the gas line connections with soapy water. If bubbles appear on a gas line, tighten or replace it as necessary.
See
Part numbers for HPR130 Auto Gas cables and leads on page 26 for lengths and part numbers.
Examine the hoses
Examine each hose for kinks or sharp bends that can restrict gas flow or cause damage to the hose.
If the cutting table uses a power track system to support the leads that go from the power supply to the gas console or
torch, look at the position of the leads in the track. Make sure the leads do not twist or kink. This can cause a restriction.
Examine the cables
Examine all cables for scratches or unusual wear. If the outside insulation is cut or has any other damage, replace the
cable. See
Part numbers for HPR130 Auto Gas cables and leads on page 26 for lengths and part numbers.
Examine the ground connections
Make sure that all components of the system are individually grounded to a driven earth ground. See the Installation and
Grounding section of your system’s instruction manual.
Examine the table-to-workpiece connection
Examine the work lead (+) connection where the work lead (+) connects to the cutting table.
Make sure that there is no paint, oil, dirt, or rust on the workpiece. This type of contamination prevents a clean
metal-to-metal contact between the work lead and the cutting table or workpiece. It can also cause arc-transfer
problems.
CAUTION!
Do not clean brass connections with ammonia-based cleaners. Ammonia causes brass to crack and
become brittle.