Catalogs >
Hayward Industries, Inc. >
Pneumatic Actuator Model PMD/PMS

Pneumatic Actuator Model PMD/PMS
4Pages

Catalog excerpts

CAUTION PLEASE READ AND UNDERSTAND: 1. ֕ BEFORE ANY MAINTENANCE IS PERFORMED, IT IS ESSENTIAL 1. THAT THE ACTUATOR IS NOT UNDER PRESSURE AND IT IS FREE OF ALL ACCESSORIES. 2. 2. FOR YOUR SAFETY, IT IS NECESSARY, BEFORE DISASSEMBLING A SPRING RETURN ACTUATOR, THAT THE UNIT IS IN THE FAILSAFE POSITION (SPRINGS EXTENDED). > 1. Disconnect all electrical and air supplies from the actuator. 2. Remove the actuator from the mounting bracket and place in a clean environment. 3. After removing the end cap screws (ref 1), remove the end caps (ref 2) 4. Remove O-rings (ref 3) from the end caps and inspect for wear and damage. 5. Using a wrench on the top of the pinion (ref 13), turn the pinion counter-clockwise until the pistons (ref 6) protrude out and can be removed. 6. Remove the O-rings (ref 5), Piston stake (ref 7) from the left and right pistons. 7. Remove Snap ring (ref 8) from top of actuator. 8. Remove position indicator. 9. Remove the screws (ref 17) from the bottom side of the flange (ref 16). Turn the unit over. Tap on the top of the pinion utilizing a wood surface, to remove. 10. Remove the washer (ref 14). 11. Remove O-rings (ref 11, and 12) 12. Inspect and replace worn parts. Reassembly: 1. Install O-rings and Piston stake on pistons. 2. Insert both piston racks on the left of where the pinion will go. Apply hand pressure until the piston racks just touch. 3. Install the o-rings on the pinion. 4. Carefully align the flats on the top of the pinion 90պ to the pistons. Install the pinion into the actuator, between the pistons. 5. Rotate the pinion with a wrench to assure it and the pistons moves freely. 6. Install the position indicator and the snap ring. 7. Assemble the washer on the flange, install the 2 flange bolts, do not over tighten. 8. Insert the end cap O-rings into their grooves by following the shape of the grooves with a finger. Ensure that the O-rings are properly seated. 9. If this is a spring return unit install the spring cartridges into the holes in the pistons. 10. Install the end caps and end cap screws. Tighten the screws in an alternating order. Do NOT OVER TIGHTEN. One Hayward Industrial Drive Rev. B Clemmons, NC 27012 Aug 10, 2004 Phone: 336-712-9900 Fax: 336-712-9518 ECR 681T www.haywardindustrial.com Page 4 of 4 size="-2">

Open the catalog to page 1

1. Operating Media: Dry or lubricated air, non-corrosive and inert gas or light hydraulic oil. 2. Air supply: 80 PSIG (5.6 Bar) recommended. 3. Operating Temperature: -4 F to +176 ںF (-20 C to 80 ںC) 4. Lubrication: Factory lubricated for life under normal working conditions with EXXON CAZAR K2 or equal. > 1. Check the coupling fits both the actuator and the valve. 2. Make sure both the valve and the actuator are both in the closed position. 3. Place the coupling on the valve stem and mount the bracket on the actuator. Align valve and actuator. Tighten all assembly fasteners. 4. 4. 4....

Open the catalog to page 2

1. Hayward guarantees its products against defective material and workmanship only. Hayward assumes no responsibility for damage or injuries resulting from improper installation, misapplication, or abuse of any product. 2. Hayward assumes no responsibility for damage or injury resulting from chemical incompatibility between its products and the process fluids to which they are subjected. Compatibility charts provided in Hayward literature are based on ambient temperatures of 70 F and are for reference only. Customer should always test to determine application suitability. 3. Consult Hayward...

Open the catalog to page 4

Pneumatic Actuator Model PMD/PMS 4Pages

Catalog excerpts

All Hayward Industries catalogs and technical brochures

Pneumatic Actuator Model PMD/PMS
4Pages