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repair and maintenance Instructions
All repairs and maintenance rec-
ommended in this instruction man-
ual must be performed by a
qualified repair technician who is
experienced with the repair of elec-
tric tools, a qualified service orga-
nization, or Master Appliance
Corp.'s Repair Department.
Please contact Master's Customer
Service Department for genuine
Master Appliance replacement
parts or for repair service.
Repair Service Dept
877-250-1934
www.masterappliance.com
WARNING: Always unplug your
tool before performing any mainte-
nance or repairs. Use only identical
Master Appliance brand replace-
ment parts.
6
Motor Brushes
1) Unplug tool before removing
brushes.
2) Inspect brushes regularly (at
least every 100 hours of running
time). If brushes are less than
1/8" long, replace them immedi-
ately.
3) Remove brushes one at a time.
To remove, unscrew the brush
cap located on the side of the
housing and remove the brush-
spring.
4) Always replace brushes in sets
of 2 to ensure equal tension. If
returning partially used brushes,
match the curvature of the
brushes to the commutator.
5) To replace, insert new brush-
spring into hole and screw on
brush cap.
6) After second set of brushes are
worn down, replacement of the
armature may be necessary.
Return the tool to Master
Appliance Corp. Repair
Department or a qualified ser-
vice organization for service.
7) Always use original Master
Appliance Corp. replacement
parts.
Lubrication
The bearings are lubricated at the
factory and require no further lubri-
cation.
Cleaning
Unplug heat gun before cleaning.
To clean outside of tool, use only a
mild soap and damp cloth. Do not
use other cleaning agents, turpen-
tine, gasoline, lacquer or paint thin-
ner, or other solvents that may
contain chemicals which are harm-
ful to plastics and other insulating
materials. Never immerse tool in a
liquid or allow a liquid to enter
inside the tool. Make sure all vents
and openings are free and clear of
debris.
www.masterappliance.com
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