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104 S. 8th Ave. Marshalltown, IA Phone 800-888-0127 / 641-753-0127 • Fax 800-477-6341 / 641-753-6341 www.MARSHALLTOWN.com
WS2638
PROBLEM
CHECK FIRST CHECK SECOND CHECK THIRD
CHECK FOURTH
Difficulty
cutting
Ensure cam
lock is OFF. If
equipped, engage
power lobes
(Model 226)
Make sure handle is
FULLY extended
Check blade
sharpness/
condition
Inspect and lubricate
bearings/pins
Not cutting
completely
through
material
Inspect pins for
oblong/wallowed
orifice
Adjust front stroke
stop (MAGNUM
shears)
Check bearings
for wear/play
Ensure blade is proper
nominal height
Blade sticking
after completing
cuts
Check/remove
& replace blade
stops if damaged
Ensure blade
screws are tight
Remove anvil,
turn it over,
reinstall
Check for marks on
anvil (overbite)
Rough or
crushed cuts
Check veneer
thickness
(max= 1/16")
Check blade
condition (chips,
burrs, breaks)
Ensure blade is
honed and sharp
Review approved
materials list
Cuts aren't
square
Loosen fence
screws, align
fence, tighten
Check pins for
uneven wear
Inspect blade and
anvil/blade-stop
for contact
Handle not
returning to
open position
Ensure pins are
lubricated
Apply grease to
contact area of
bearing
Lubricate axle
bolts
Check springs for
breakage
Material won't
fit into cut area
Check max
thickness of
material for your
shear
Reverse back
stroke stop
Ensure blade is
proper nominal
height
If you have two
bearings, switch which
bearing is engaged
Cam lock pin
bent/stuck
Do not lift or
carry shear by the
handle
Return handle
slowly to open
position - do not
"let it fly"
Disengage cam
lock pin BEFORE
cutting
Blade chipping
Hone as directed
in manual (~25
cuts, then daily)
Do not cut
stranded bamboo
Do not cut high
pressure laminate
Check veneer
thickness (max=1/16")
Pin openings
wallowed out /
oblong where
cam axle
passes through
Do not lift or
carry shear by the
handle
Return handle
slowly to open
position - do not
"let it fly"
Check veneer
thickness
(max= 1/16")
Review approved
materials list
Not cutting
to edge of
material
Check fence
alignment - adjust
if needed
Do not "angle"
material beyond
the blade edge
Ensure angle
fence(s) are
installed with
WIDE edge
inward (620
model)
