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.

1. Mechanical Power Presses

3. Full Revolution Clutch

4. Part Revolution Clutch

6. Part revolution bench top press

7. Bench top press (cont’d) Light Curtain Overhead Guard

9. Part revolution clutch Air line going to clutch

10. Full revolution clutch Single Stroke Mechanism

12. Hydraulic Press Light curtain Foot control

14. Press Brake

16. Modes of Operation, Control Selector inch, single stroke, continuous Emergency stop button

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.

22. Horn Press

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

30. Clutch Pin

31. Clutch pin

32. Clutch Pin

33. Jaw type Striking plate on flywheel Sliding sleeve with multiple engaging jaws Rotary air seal Direct-acting pneumatic chamber

34. Friction Brake

36. Air line for clutch engagement. Engaged with air pressure, released with absence of air pressure. Part revolution clutch

37. Air released and spring applied Part revolution brake

39. Compression spring operating on a rod or guided within a hole or tube. Single stroke mechanism

41. Foot treadle Treadle Canopy guard Removable foot pedal

42. Foot Control Protection from unintended objects Compression type spring Applicable Safety Warnings Manufactures Specifications

45. Two-Hand Trips/Controls Note: Red stop button normally not present

46. Two-Hand Trips/Controls

47. Two-Hand Trip/Controls Top Stop Emergency Stop Two Hand Control Prior Action Button

56. Dual-Air Valve Single-Air Valve

57. Cam Assembly Air Pressure Switch Dual-Air Valve Air Pressure Regulator

58. Rotating Cam Switch Assembly Belt Assembly Rotating Cam Switches

60. Solid State Diagnostic Display Panel

65. Motor starter control panel start/stop switch Disconnect switch capable of being locked in off position

66. Disconnect Switch, turns to locked position Solid control panel

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

76. Two-Hand Controls Top Stop Emergency Stop Key Selector capable of being supervised Indicator Light

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

83. Presence sensing device Light curtain Control box

84. Presence sensing device Light curtain Top guard assembly

85. Presence sensing devices light curtain Horizontal mounted light curtain Vertical mounted light curtain

87. Arm-Type Pullback

88. Overhead Type Pullback

89. Two-Man Operation

90. Two-Man Operation Side Guard Panel Light Curtain Pullbacks

91. Wristlets and Cables

92. Point-of Operation Devices Protect Hands Ram Up - Die Open Ram Descending - Die Closing

93. Point-of-Operation Devices Protect Hands (cont’d) Ram Down - Die is Closed

96. Two-person sliding restraint

102. Front Guard Interlock switch

103. Side Guard Adjustable guard Fixed Panel

104. Barrier Guard Fixed panel in back of machine

105. Expanded metal lexan guarding materials Adjustable guarding sections

106. Various Guards

107. Various guards (cont’d)

108. Various guards (cont’d)

109. Various guards (cont’d)

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

114. Tonnage, stroke and weight designation Model number Tonnage Stroke

115. Tonnage, stroke and weight designation Model number Tonnage Stroke

118. Spring loaded turnover bar Fully enclosed spring Made of high tensile steel Vinyl-coated yellow handle

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

129. Bellows safety shield

130. Die set shields Bellows safety shield Bellows safety shield

131. Hand feeding and retrieving tools

132. Die safety block accessories Two-piece aluminum safety wedges Adjustable screw device

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

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

140. Hydra-mechanical press brake Control box Hydraulic valve Light curtain

143. Side shield Light curtain Press brake

144. Side shield Light curtain Press brake

146. Press brake bending metal

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