Hypertherm MAXPRO200 Preventive Maintenance Program - Manual (Page 21)

MAXPRO200 Preventive Maintenance Program Instruction Manual 808800 17
Short cut cycle time
Applications where the cut sequence is very short, such as those that include cutting many small holes or frequent
markings for numbers and letters, can cause premature wear of torch parts and starting components. In these types of
applications:
 The shield, retaining cap, and torch main body are exposed to more heat and stress during piercing, which can
deform the components and make them more difficult to replace.
 The starting components, such as the high frequency transformer and the high frequency ignition board, can wear out
faster than normal and result in misfires and error codes (020, 021).
Consumable overuse
If you allow consumables to reach complete failure, they can melt and pieces of copper can break off and enter into the
coolant. In the coolant, these pieces of copper can:
 Become caught in the torch head and torch receptacle and can obstruct coolant flow and increase coolant flow
errors (093) or damage consumables by allowing them to overheat.
 Become caught in the coolant filter and pump, which can cause coolant flow errors (093) or excessive wear in the
coolant pump.
 Shorten the life of the check valve if copper pieces lodge on the inside of the seal of the valve and cause coolant to
leak when you change consumables.
 Shorten the life of the coolant flow switch by obstructing the movement of the sensor wheel within the switch and
cause inaccurate coolant flow readings and coolant flow errors (093).
When you perform maintenance checks, inspect the coolant filter for melted copper pieces. If you find pieces of copper in
the coolant filter, both the filter and coolant must be replaced. If coolant flow errors (093) occur after you replace the filter
and coolant, the troubleshooting procedure in your system’s instruction manual (807700) to determine the appropriate
action.
Description Part number
Contactor
003249 - 380 V, 400 V, 415 V, 440 V, 480 V, and 600 V power supplies
003233 - 200/208 V, 220 V, and 240 V power supplies
Mechanized torches - See Table 2 – Mechanized torch parts replacement schedule on page 14 for part numbers
Handheld torches - See Table 3 – Handheld torch parts replacement schedule on page 15 for part numbers
High frequency transformer 229487
I/O PCB 428040