Changing The Saw Blade - Mainca BC-2500 Manual De Instrucciones

( BM-3000JV MODEL WITH FOLDING MOVING TABLE ) WORKING WITH MOVING TABLE
For the cut with sliding table make sure first that this is released, otherwise, with stopped machine it will be thrown
of the handle of the table quadrant (U) upwards and, maintaining it slightly inclined one will slide backwards until
making end, then it will let pivot downwards following until its vertical position.
In order to release the sliding table (Z) turnright the locker (W) and turn the front protector to its superior position,
fix with same pin in hole of sliding table (F).
For the use of the sliding table it is obligatory that the front protector is vertical making a wall to 90º with the
surface of the table.
Also is necessary to disassemble the hinged pusher (C), open the front cover (B) throwing of the two bolts (B·A)
located in the parts superior and inferior of the cover next to the handles, release the lock that retain it and move it
towards the left.
After table is folded, follow steps described above, on ( INSTRUCTIONS FOR USE, MOVING TABLE ).

CHANGING THE SAW BLADE

To remove the band it is necessary to unscrew tensioner (H) (Anti-clockwise when looking from above the
machine), which will loosen the blade and allow its removal. When refitting the blade, ensure that it is well
positioned with the scrapers (E) (figure 6), top pulley (I) and lower pulley (J), central plate (K) and that it passes
through the intermediate slot guide (L). If the tensioner is the automatic version (04), turn the knob clockwise till
the ratchet slips, indicating the band is correctly tensioned.
After replacing the band, one should check if any further adjustments are required as follows:
ADJUSTING THE BLADE
To ensure that the machine is running properly, one must check that the band is running true on the pulleys. To
be correct, the band has to rest with the rim of the blade aligned with the front end of the pulley. See Figure 5.
If it is not aligned, proceed to correct the alignment, by adjusting the inclination assembly knob (M) as follows.
Unscrew the cap (S) to accede to the knob (M). Loosen the nut by means of lever (N) to free the inclination knob
(M). You will observe that by screwing the knob when at the same time turning the band by hand, the blade will
move backwards. Similarly, when we unscrew it, the blade moves forward. The centring operation must be carried
out by screwing and unscrewing the knob so that the deviation of the band is minimal and does not drop off (M).
Remember to turn the pulley by hand each time you adjust the inclination knob (M).
After replacing a band, you must ensure the blade is running true, before you run the machine.
CLEANING
To proceed with cleaning the band saw, disconnect the plug from the mains. Open the door (B), loosen the
tensioner (H) and remove the band. Unscrew the scraper securing knob, remove the scrapers (O) and the upper
pulley pulling it up. For BM-3000JV to disassemble to the upper pulley ( I ), unscrew the cover (T), that access to
the rear part of the axis, with allen key 8, unscrew it in clockwise. Disassemble the scrapers (E) throwing of the
retention rings and retire the scrapers wheels (X) throwing of them while it presses its spring.
To clean scrapeprs and wheels, use a stiff brush and hot water.
With a damp cloth, hot water and a neutral detergent, clean the inside of the door and body, as well as the
exterior, together with the blade and guards, etc. Finally, dry it off with a cloth.
In BM-3000JV, to empty and clean waste product tray move it backwards and pull it up from its inferior part to its
horizontal position dropping the waste, cleaning it with a damp cloth, hot water and a neutral detergent and finally,
dry it off with a cloth.
Pay special attention to residues that can accumulate on the corners, pulleys, pulley grooves, lower scrapers and
the back bearing covers.
To remove the lower pulley you must extract bolt (P). To loosen, unscrew clockwise as these are left handed
threads, pay attention to o-rings placed between pulley (J) and bolt (P)
Avoid dripping water onto the electrical zone.
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