Lincoln Electric IM10071 MAGNUM PRO THRU THE ARM ROBOTIC TORCH - Manual (Page 23)

D-2 MAINTENANCE D-2
TO REPLACE THE WIRE BRAKE COMPO-
NENTS, FOLLOW THESE STEPS:
(See Section B-4 thru B-6 to help follow these steps
also see Figure D.4)
1. Remove plug cover on nose cone. Loosen set
screw and remove gooseneck.
2. Remove plug cover from Housing. Loosen socket
head cap screw. Remove 4 socket head cap
screws from front of Nose Cone Assembly
Disconnect air hose and remove nose cone assem-
bly from torch assembly.
3. Loosen 2 socket head cap screws ITEM 6 and
remove wire brake cap ITEM 5 from nose cone
assembly. Remove spring ITEM 3 from piston
guide ITEM 2 and reserve. Remove piston guide
ITEM 2. Remove wire guide ITEM 1 from within
nose cone assembly.
4. Install new wire guide ITEM 1 by inserting thru front
of nose cone. Align wire access hole with wire
brake access port in nose cone.
5. Apply a small amount of thread sealant to threads
on piston guide ITEM 2. Install and tighten piston
guide ITEM 2 thru nose cone access port until
threads are no longer visible and piston guide ITEM
2 is firmly seated. Carefully torque piston guide
ITEM 2 to 14-17 in.-lbs.(1.6-1.9Nm). Do not dam-
age edges of piston guide, as this may cause edge
burrs on the piston guide ITEM 2 and damage Item
5 brake cap cylinder bore. The shaft on piston ITEM
4 can help align the piston guide when threading
into wire guide ITEM 1.
6. Install the air fitting ITEM 7 in the air brake cap
ITEM 5 with 2.5mm hex key to 3.5-4.0 in.-lbs.(.40-
.46Nm).
7. Apply a liberal amount of silicone lubricant to the o-
ring ITEM 8 on the wire brake piston ITEM 4.
Reinstall the wire brake spring ITEM 3 into the
pocket on the piston guide ITEM 2. Install the air
brake piston ITEM 4 thru the spring ITEM 3.
8. Push the air brake cap ITEM 5 over the piston
ITEM 4 and secure with the 2 socket head cap
screws ITEM 6. Torque screws to 2.5 to 3.5in-
lbs.(.28-.40Nm)
Reinstall air hose, nose cone assembly in the
reverse order from above.
MAGNUM® PRO THRU THE ARM ROBOTIC TORCH
1
3 5
PISTON SHAFT
THREAD SEALANT
HERE
NOSE CONE ASSEMBLY
WIRE BRAKE
ACCESS HOLE
WIRE ACCESS HOLE
2 4 6
7
8
FIGURE D.4