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I
NSTRUCTION
M
ANUAL
MEGA-M250b
Abrasive Cutter
3601 E. 34th St. Tucson, AZ 85713 USA Tel. +1 520-882-6598 Fax +1 520-882-6599 email: [email protected] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
For proper clamping, use the appropriate clamping vises to securely hold the sample in
place. It is recommended that both sides of the part be clamped to avoid pinching of the
blade (possibly breaking the blade) and to minimize burning of the workpiece during
cutting.
For proper fixturing, take into account the initial stress on the samples.
!
Fixture examples
4.5 Fixturing sample
17
Fast clamping
Clamping diameter 3 inches (76 mm)
Left lever (Cat. No. QCL-1000)
Right lever (Cat. No. QCR-1000)
Note: vises have a slot in them so
that the face does not rotate
UNIVERSAL Clamping vise
UNIVERSAL (Cat. No. MIG-01)
Clamping height (45 mm arm)
Height adapter (65 mm) attachment for MIG-01
(Cat. No. MG-H)
.
13
4.4 Manual cutting (step
-
by
-
step procedure)
1.
Connect electrical power and turn on master power switch on the back panel
before opening the hood.
2.
Position fixtures and sample near to cut-off wheel.
3.
Close hood.
4.
Turn on coolant and cutter motor.
5.
Hand feed the cutting wheel into the sample.
6.
Turn off cutter and allow blade to completely stop before opening cover.
Note magnetic safety switch has approximately a 5 second delay. Cutter
hood can be opened until safety switch is deactivated.
