Tweco XTTM-301 - Manual (Page 56)

SERVICE 5-2 Manual 0-4768
3. Excessive Dross Formation
a. Cutting speed too slow
b. Torch standoff too high from workpiece
c. Worn torch parts
d. Improper cutting current
e. Non-Genuine Thermal Dynamics Parts
4. Short Torch Parts Life
a. Oil or moisture in air source
b. Exceeding system capability (material too thick)
c. Excessive pilot arc time
d. Air flow too low (incorrect pressure)
e. Improperly assembled torch
f. Output current too high
g. Torch tip contacting workpiece
h. Damaged or loose torch head components
i. Non-Genuine Thermal Dynamics Parts
j. Restricted coolant flow (over heating)
5. Poor Pilot Starting
a. Non-Genuine Thermal Dynamics Parts
b. High coolant conductivity (refer to Power Supply
Manual)
5.03 General Maintenance
A. O-Ring Lubrication
Lubricate all three O-Rings on the Cartridge Assem-
bly and all three O-Rings on the Torch Head periodi-
cally with O-Ring Lubricant supplied. Remove the
snap ring on the cartridge assembly and slide the lock-
ing ring downward for access to the O-Ring under the
locking ring.
CAUTION
Use only Thermal Dynamics No. 9-4893 O-Ring
Lubricant (Christo Lube MCG-129) with this torch
part. Use of other lubricants may cause irreparable
damage to the torch.
O-Ring, Cat. No. 8-0544
Inner O-Ring (Cat. No. 8-0545)
Location (Under Locking Ring)
O-Ring, Cat. No. 8-0540
Art # A-04071
Snap Ring
Cartridge Assembly
O-Rings
Art # A-04066
Cat. No. 8-0539
Cat. No. 8-0534
Cat. No. 8-0530
Torch Head
Cat. No. 9-9041