Maintenance - Makita JN3200 Instruction Manual

1
2
1. Screw
2. Hex wrench
3. Washer
4. Insert washer in between
5. Die

MAINTENANCE

1. Grind/sharpen; 0.3 - 0.4 mm
(1/64")
2. Remove dull portion
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2
3
1. 3.5 -4.0 mm (1/8" - 5/32")
2. Die
3. Washer
Cutting stainless steel
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There is more vibration when cutting stainless steel than mild steel. Less
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vibration and better cutting is possible by adding another washer (standard
equipment) beneath the die.
Use the hex wrench provided to remove the two screws and insert the washer
below the die. Replace screws and tighten securely.
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5
CAUTION:
• Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
Punch & die service life
Replace or sharpen punch and die after cutting the lengths indicated in the
accompanying table. Their life, of course, depends upon the thickness of mate-
rials cut and lubrication conditions.
Punch
Die
When cutting is poor even after replacing the punch, sharpen the die. Grind
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down the dull edge shown in the figure using a grinder. After rough-grinding
the dull portion, finish with a dressing stone. Stock removal should be about
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0.3 to 0.4 mm.
2
When installing ground die, a clearance of 3.5 to 4.0 mm should be obtained
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by attaching one or two of the washer provided, as shown in the figure. Failure
to have the proper clearance will result in vibration during cutting.
CAUTION:
• Secure installing screws carefully when installing. A loose screw can
cause tool breakage during operation.
NOTE:
• The die can be sharpened two times. After two sharpenings, it should be
replaced with new one.
Replace after 150 m of 3.2 mm steel sheet
Sharpen after 300 m of 3.2 mm steel sheet
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