Hypertherm MAXPRO200 Preventive Maintenance Program - Manual (Page 22)

18 MAXPRO200 Preventive Maintenance Program Instruction Manual 808800
The simplest way to address consumable overuse is to follow the usage guidelines for your consumables. However, if
overuse occurs, consider adjusting the replacement schedule for the following components:
Metal dust inside power supply cabinet
One of the byproducts of plasma cutting is metal dust. If metal dust builds up inside the plasma power supply cabinet, the
life expectancy of some components will be shorter than expected. Periodic cleaning inside the power supply is strongly
recommended to extend the life of the fans and coolant pump motor. For cleaning details, see
Clean inside the power
supply on page 8.
If metal dust builds up on fans (main power supply, chopper, and heat exchanger) it can reduce their output level or stop
them from working, resulting in temperature-related errors (065, 066, 067, 071).
The coolant pump motor can also be impacted by metal dust, which results in overheating or stopping the motor.
If you have metal dust inside your power supply, consider adjusting the replacement schedule for the following
components:
Dirty external work environment
Metal dust and dirt that collect on unused and unprotected consumables and torch assemblies can cause the following
conditions:
 Metal dust and dirt from the cutting process will prevent o-rings and seals of the torch heads and receptacles from
sealing properly. Incomplete seals can allow dirt and grease to be trapped in parts of the torch head.
 Torch heads and receptacles that are not protected from the elements will have to be changed or repaired more
frequently.
 Metal dust and dirt that build up on the torch and consumables may enter the coolant system and create excessive
wear on the pump. In this type of environment, the coolant pump may have to be replaced more frequently.
 The flow switch uses magnetic pick-ups and will be affected by a coolant system that has dirt and metal dust trapped
in it. Flushing the coolant system will help, as well as cleaning the flow switch. However, you may need to replace the
coolant switch to recover proper functionality of the coolant loop system.
Description Part number
Coolant (30/70 mix) 028872
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
Quick-disconnect torch receptacle 420033
Coolant filter 027005
Coolant pump 428043
Coolant check valve 006075
Coolant flow sensor 428037
Description Part number
Front fan 027079
Heat exchanger fan 127091
Coolant pump motor 428039