Mittler Bros Machine & Tool 3000 - Manual (Page 4)

SHEAR BLADE CLEARANCE
CAUTION: CHECK SHEAR BLADE CLEARANCE BEFORE OPERATING FOOT SHEAR
• Depress Foot Treadle and hold on floor.
• Place 0.003” feeler gauge between the upper & lower shear blades – approach blades from
machine rear.
• Check Blade Clearance at: 6” from left end / center / 6” from right end.
• NOTE: Blade Clearance is factory set at 0.003”.
GENERAL RULE - BLADE CLEARANCE = 5% - 10% OF MATERIAL THICKNESS.
Aluminum = 5% of material thickness.
Mild steel = 10% of material thickness.
CAUTION: Too Narrow or Too Wide shear blade clearance can cause
blade and/or machine damage.
OPERATION
• Place Metal on table and align with Edge Guide Plate on left side or right side.
• Align metal with edge guide plate scale or marks on metal where metal is to be cut –
Align Both Sides.
• NOTE: Look between infeed guard and Upper Blade Holder Assembly to align marks on metal with
lower shear blade edge.
• Push Foot Treadle down to lower Upper Shear Blade Assembly to cut metal.
NOTE: Push Foot Treadle to floor to insure entire metal width has been cut.
• Release Foot Treadle – Spring Loaded Upper Shear Blade Assembly will move upward to home
position.