Hypertherm MAX200 Service Manual - Manual (Page 44)

MAX200 Service Manual 3-3
7-99
MAINTENANCE
Routine Maintenance
The MAX200 system is designed to require very little regular maintenance under normal use. The following torch,
torch leads, torch coolant and power supply routine maintenance checks are suggested to keep your system in top
running condition:
Torch and Torch Leads
Always inspect the torch consumable parts and torch main body prior to cutting. Worn or damaged parts can cause
gas and water leaks which can affect the cut quality. Check for pitting and burn marks on the consumable parts and
replace, if necessary. See Changing Consumable Parts in Section 4 of the MAX200 Instruction Manual (#800870 –
Hand Torch, or #800980 – Machine Torch).
The torch leads should be checked occasionally for cracking and damage.
Torch Coolant
A standard mixture of propylene glycol (30%), deionized water (69.9%) and benzotriazole (0.1 %) is recomended.
Refer to Appendix B for Torch Coolant Requirements and the Material Safety Data Sheets on propylene glycol and
benzotriazolefor data on safety, handling, and storage.
Power Supply
Inspect the power supply on a routine basis.
• Check the exterior for any damage. If there is damage, ensure it does not affect safe operation of the power
supply.
• Remove covers and inspect the interior. Check wiring harnesses and connections for wear and damage. Check
for loose connections and look for areas of discoloration due to overheating.
• At the rear of the power supply, inspect the particle filter element of the water/coolant subassembly. In the event
that the filter becomes excessively dirty, torch coolant flow can slow down causing the flow switch to open (turn
off) and make the coolant flow interlock status LED illuminate. The filter turns to a browish color when dirty.
Replace the filter element (027005) when it starts to change color.
• Every 2 weeks, inspect the air filter in the front panel of the power supply by removing the access cover and
lifting the filter out. Replace filter (027441) when dirty.
• Every 6 months, flush the power supply of its torch coolant and replace with new coolant (028872).