OPTIMUM
M A S C H I N E N - G E R M A N Y
Malfunctions
Version 1.0 dated 2015-06-18
Page 51
Original operating instructions
S275N | S275NV
GB
7
Malfunctions
7.1
Malfunctions on the metal belt saw
Malfunction
Cause/
possible effects
Solution
Saw motor overloading
Saw motor overheating
•
Suction of motor cooling air hindered
•
Motor not correctly fixed
•
Power unit for saw blade not prop-
erly fixed
•
Wrong electrical connection
•
Check and clean
•
Requires technical service! Have the
machine repaired in the workshop
•
"Electrical connection“ on page
Cooling agent feed not working
•
Cooling agent tank empty
•
Cooling agent tap locked
•
Cooling agent tap blocked
•
Cooling agent duct bent or blocked
•
Air in the system, e.g. after refilling
•
Pump doesn’t work
•
Fill
•
Open
•
Cleaning
•
Check and clean
•
Bleed by briefly withdrawing the
pressure hose
•
Check pump
Short life of saw belt
(Teeth blunt)
•
Quality of saw belt not suitable for
this material
•
An incorrect tooth spacing causes
breakage of teeth (the broken tooth
in the workpiece blunts the other
teeth)
•
Missing cooling
•
Cutting speed too high
•
Feed too high
•
Saw belt of higher quality (bimetallic
blade)
•
Select correct tooth pitch
•
Use coolant equipment
•
Reduce cutting speed
•
Reduce feed
Breakage of tooth
•
The chip space in the saw belt is
overcharged, tooth pitch incorrect
•
Use saw belt with a different tooth
pitch or reduce feed
Breakage of the saw blade
•
Tension in the saw belt too high or
too low
•
Saw blade defective
•
Saw blade guide adjusted incorrectly
•
Check tension of saw blade
•
Replace
•
Adjust blade guide correctly
Twisted cut (saw blade deviat-
ing)
•
Distance between guide and work-
piece too high
•
Saw belt blunt
•
Too low saw blade tension
•
Feed too high
•
Cutting pressure too high
•
Saw blade defective (irregular set)
•
Wrong saw blade guidance
•
Bring the guide as close to the work-
piece as possible
•
Replace
•
Tighten correctly
•
Reduce
•
Reduce
•
Replace
•
Readjust
Cut not rectangular but parallel
•
Material does not rest on both vice
jaws
•
Saw arch not adjusted to 90
0
•
Insert material properly
•
Adjust saw arch correctly