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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
WS# 2642
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)
