Pneumatic And Hydraulic Equipment Page 1091

HH SERIES ROD HEAD CAP BORE DIA. A C B C 5/8 1/2 5/8 1/2 1 5/8 1/2 5/8 1/2 1 5/8 1/2 3/4 1/2 1-3/8 5/8 3/4 1/2 1 5/8 1/2 3/4 - 1-3/8 5/8 1/2 3/4 - 1-3/4 5/8 3/4 - 1-3/8 3/4 - 3/4 - 1-3/4 3/4 1/2 3/4 - 2 3/4 1/2 3/4 - 1-3/4 3/4 - 3/4 - 2 3/4 - 3/4 - 2-1/2 3/4 1/2 3/4 - 2 3/4 - 3/4 - 2-1/2 3/4 - 3/4 - 3 5/8 - 3/4 - 3-1/2 3/4 - 3/4 - 2-1/2 1 - 1 - 3 1 - 1 - 3-1/2 1 - 1 - 4 1 - 1 - 3 1 - 1 - 3-1/2 1 - 1 - 4 1 - 1 - 4-1/2 1 - 1 - 5 1 - 1 - 3-1/2 1 - 1 - 4 1 - 1 - 4-1/2 1 - 1 - 5 1 - 1 - 5-1/2 1 - 1 - Always check dimensions for possible interference. 2 1-1/2 2-1/2 3-1/4 4 5 6 7 8 CYLINDER DIMENSIONS For complete cylinder dimensions, please consult the appropriate cylinder section in this bulletin. A SERIES - Pneumatic cylinders rated for pressures up to 250 psi. Steel, square head, ANSI interchangeable design. MH SERIES - Hydraulic cylinders for medium service with pres- sures up to 2,000 psi, depending on bore size. No metal-to-metal Slipper Seal piston and long life rod seal. ANSI interchangeable. HH SERIES - Hydraulic cylinders rated for 3,000 psi operating pressure. Finest of the interchangeables. No metal-to-metal Slipper Seal piston and long life rod seal. SWITCH ADJUSTMENT Switches are pre-set at the factory when assembled to the cylinder. They can, however, be field adjusted in the following manner: DISCONNECT ALL ELECTRICAL SUPPLY CIRCUITS Remove limit switch box cover. If adjusting the switch on the head end of the cylinder (the end of the cylinder with the piston rod), retract the rod fully. If adjusting the switch on the cap end of the cylinder, extend the piston rod fully. Turn the hex head adjusting screw (see illustration) counter-clockwise until the limit switch clicks on. After the switch has clicked on, turn the hex head adjusting screw clockwise until the switch clicks off, then continue to turn clockwise an additional 1/4 turn. Replace the limit switch box cover. Reconnect the electrical supply circuits. SWITCH ADJUSTMENT 5/16 HEX HEAD ADJUSTING SCREW ACCESSORIES-MECHANICAL LIMIT SWITCH ACTUATORS - DIMENSIONS S H E F E R Sheffer cylinders JHF Catalog [ Volume 7 ] (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com 1091 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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