Hypertherm HT4400 User Manual

MAINTENANCE
5-38 HT4400 Instruction Manual
3
Preventative Maintenance
S
chedule Year________
Daily:
Verify proper inlet gas pressure -- See Instruction Manual, Specification section
Verify proper gas flow settings -- Mandator
y
at ever
y
consumable chan
g
e -- See Instruction Manual, Operation section
Verify proper coolant pressure and temperature -- Water Chillers onl
y
-- See Instruction Manual, Specification section
Replace consumables as needed, and inspect torch
Weekly: Date Completed:
Jan Feb March April May June July Aug Sept Oct Nov Dec
Week 1
Week 2
Week 3
Week 4
Week 5
Clean power supply with dry, oil free compressed air, or vacuum
Clean torch threads and current ring
Verify cooling fans are working properly
Verify proper coolant level
Monthly: Date Completed:
Jan Feb March April May June July Aug Sept Oct Nov Dec
Inspect for loose wire connections
Inspect contacts on main contactor for wear
Inspect pilot arc relay for pitting
Verify proper operation of coolant flow switches
Perform coolant flow test
Check gas console packing nuts for tightness
Perform gas leak test
Inspect cable connections
Bi-Annually: Date Completed:
Service 1________ Service 2________
Drain coolant system -- See Instruction Manual, Maintenance section
Replace coolant filter element - See Instruction Manual, Maintenance section
Replace coolant with genuine Hypertherm coolant
Annually: Date Completed:________
Replace pilot arc relay
Replace main contactor
Hypertherm, Inc. 8/28/00
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Hypertherm HT4400 Specifications

General

Brand	Hypertherm
Model	HT4400
Category	Cutter
Language	English