.
A complete Parts List is available at www.MillerWelds.com
OM-316 Page 22
SECTION 7
−
MAINTENANCE & TROUBLESHOOTING
7-1. Routine Maintenance
!
Disconnect power
before maintaining.
.
Maintain more often
during severe conditions.
n
= Check
Z
= Change
~
= Clean
l
= Replace
* To be done by Factory Authorized Service Agent
Reference
Every
3
Months
l
Unreadable Labels
~
Weld Terminals
nl
Weld Cables
Every
6
Months
OR
~
Inside Unit
7-2. Lubricating Shunt Block And Anti-Noise Adjustment
802 248-D
!
Turn Off welding power
source and disconnect input
power.
1
Wrapper
Remove wrapper.
2
Shunt Block
.
Do not grease screw threads
on shunt block.
Apply light coating of high-tempera-
ture grease to shaded areas of both
shunt blocks. Turn amperage con-
trol handle to spread grease evenly.
3
Noise Adjustment Screws
If shunt block vibrates and
becomes noisy, tighten adjustment
screws 1/4 turn. Install wrapper,
turn On unit, and check for shunt
noise. Repeat procedure until noise
stops. Do not overtighten. Call your
nearest Factory Authorized Ser-
vice Agent if noise continues.
!
Install wrapper before
turning On power.
5/16, 3/8 in.
2
3
2
Tools Needed:
1/2 in.
1
