Tweco 400 Ultra-Cut(May 2014) - Manual (Page 103)

ULTRA-CUT 100 XT/200 XT/300 XT/400 XT
Manual 0-5302 MAINTENANCE 5-1
SECTION 5: MAINTENANCE
5.01 General Maintenance
Perform the following checks periodically to ensure proper system performance.
Power Supply Maintenance Schedule
Daily
Check coolant level; add coolant as needed.
Check gas hose connections and pressures.
UC-AC Maintenance schedule
Monthly
Check cooling fan and radiator; clean as needed.
Check gas hoses for cracks, leaks, or abrasion.
Replace as needed.
Check all electrical connections
for cracks or abrasion. Replace as needed.
Six Months
Clean or replace external coolant filter.
Clean coolant tank.
Vacuum out any dust buildup inside power supply.
5.02 External Coolant Filter Cleaning Procedure
Periodic cleaning of the coolant filter ensures maximum coolant flow efficiency. Poor coolant flow causes inefficient torch parts
cooling with consequent faster consumable wear.
Clean the coolant filter as follows:
1. Disconnect system from main input power.
2. Unscrew and remove the filter canister by hand. Large canister located at the back of the power supply. Be sure to keep
the O-ring.
3. Inspect and replace filter as needed. Re-install the canister, tightening it by hand. Be sure the O-ring is in place.
4. Turn the system on and check for leaks.