The document summarizes safety requirements for mechanical power presses. It discusses the different types of presses including full and part revolution clutches. It describes requirements for controls, safeguarding devices like two-hand controls, light curtains, and pullbacks. Proper installation and maintenance of these safety systems is required to prevent worker injuries at power presses.
16. Modes of Operation, Control Selector inch, single stroke, continuous Emergency stop button
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20. Open Back Inclinable Press Hand operated inclining mechanism on OBI. Turning hand crank rotates screw to tilt press back to desired position.
21. Open Back Stationery Press Flywheel is located at the rear of the press frame on front-to-back presses, eliminating obstruction around the die frame.
24. Part Revolution Straight-Side Press - Left Side View Main Drive Air Surge Drive Air Releasing Brake Dual Solenoid Valve Lifting Lug Crown Lubricator Operator’s Station Side Guard Bed Air Pressure Switch for Clutch/Brake Air Pressure-Gauge & Lubricator Assembly for Clutch/Brake Air Pressure Switch for Counterbalance Upright or Column Filter-Regulator-Gauge for Die Cushion
25. Air Counterbalance Belts Sheave Main Gear Flywheel Air Friction Clutch Cover Rotating Limit Switch Assembly Knockout bracket Knockout Rod Knockout Bar Control panel with Starter and Disconnect Switch Emergency-Stop Button Tie Rod Nut Tie Rod Crankshaft Connection (Pitman) Side Adjusting Mechanism Side (Ram) Gib Run Buttons Top-Stop Buttons Bolster Straight Side- Front View
26. Cam and Limit Switch Drag Brake Knockout Knockout Bracket Operator’s Station Slide (Ram) Knockout Bar Side Barriers Leg Motor Motor Starter Disconnect Switch Control Box Inclining Mechanism Frame (Body) Full Revolution - Left Side View
27. Foot Control Leg Bolts Bolster Rear Barrier Die Clamp Lubricator Connection (Pitman) Crankshaft Limit Switch Belts Sheave Lifting Bolt Flywheel Clutch Area Cover Side Adjusting Screw Run Buttons (Two-Hand Trip) Gib Air Cylinder (Solenoid Valve, & Filter-Regulator-Gauge and Lubricator Assembly Not Shown) Bed Leg Tie Rod Full Revolution - Front View
67. Motor starter and fused disconnect switches MOTOR START SWITCH MOTOR START STOP CONTROL SWITCH TURNS TO LOCKED POSITION
68. Solid state control panel Light curtain switch Control selector Motor stop button
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76. Two-Hand Controls Top Stop Emergency Stop Key Selector capable of being supervised Indicator Light
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81. Light Curtain - Presence Sensing Device Receiver Transmitter 20” Cables Control box Features * Meets industry standards * Self-checking circuitry * Strobe-light and weld flash immunity without increasing response time * Detects objects 1” or larger * Channel blanking * 50’ max operating range
82. Light Curtain - Flex Systems Applications Transmitters Receivers
110. Spring lift guard Black square mesh Adjustable hairpins Mechanical motor springs
111. Spring lift guard Air cylinders Nonadjustable portion of panel with black mesh Key-operated control station Linear bearing assembly Adjustable hairpins
118. Spring loaded turnover bar Fully enclosed spring Made of high tensile steel Vinyl-coated yellow handle
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120. Sample Press Inspection Report Parts Inspected OK Defective Condition Corrective Action Date Repaired Frame/Motor Flywheel/Gears Clutch/Brake Connection and slide adjusting screw Slide and Gibs Slide counterbalance Air/Electrical system Foot switch Crankshaft P.O.O. safeguarding Guards and presence sensing devices Pullbacks/Restraints “ A” or “B” Gate/ Two Hand Trip or Control
133. Die safety block accessories (cont’d) Safety plug is disconnected. Press is inoperable. Block in use
134. Die safety block accessories (cont’d) Electric safety plug is connected. Control circuit is made and press can be operated Block in storage
135. Die safety block accessories (cont’d) Interlock must be interfaced into the control system so that when plug is pulled, power to the main drive motor is disconnected.
136. Die safety block accessories (cont’d) Electrical power cut-off system Die safety block Wedges Die safety block holder
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138. Two-speed air-clutch press brake Custom control box Barriers Two operator stations Light curtain on floor stands
139. Hydraulic press brake Light curtain Side guards and mounting brackets Foot switch Control box Interface box
150. 1-1/2” 1” 1” 2” 1” 1” 5” 3” 2” 14” 17-1/2” Danger Line Clearance Line Minimum Guarding Line 1/4” 3/8” 1/2” 5/8” 3/4” 7/8” 1-1/4” 1-1/2” 1-7/8” 2-1/8” Guarding must extend from some point on clearance line to some point on opening line Typical guard locations Table 0 -10 At distances over 31-1/2” use 6” as maximum opening 6” Maximum 1/2” Travel Stock Line Table 0 -10 Distance of opening from P.O.O. hazard Max width of opening 1/2 to 1-1/2 1/4 1-/12/ to 2-1/2 3/8 2-1/2 to 3-1/2 1/2 3-1/2 to 5-1/2 5/8 5-1/2 to 6-1/2 3/4 6-1/2 to 7-1/2 7/8 7-1/2 to 12 -1/2 1-1/4 12-1/2 to15 -1/2 1-1/2 15-1/2 to 17-1/2 1-7/8 17-1/2 to 31 -1/2 2-1/8