Flowserve NAF-Turnex pneumatic actuators Manuel d'utilisateur

1NAF-Turnex pneumatic actuatorsNAF 791290/92/94, sizes 0, 1-3 and 4-5Maintenance instructions and spare parts listFi 74.59(3)GB05.12General ...

103.2 To dismantle and assemble the spring- return unitIf the air consumption of the spring cylinder in size 0 and 1-3 actuators is abnormally hig

11The spring assembly consists of springs, spring guide and guide rails which together form a preloaded spring assembly. If the assembly must be di

12Table 4. Levers with hub- applies to sizes 0 and 4-5, and Stem sleeves- applies to sizes 1-3.Fig. 16. Installation of end position sensor. Type

13Fig.18. Mounting holes for NAMUR solenoid valvesNAMUR valves are always delieverd with an M5 set screw. This should be fitted into one of the eccentr

14Item No. Description Qty Size5.2 Spare parts kits for sizes 02 - 32Kit No.1 Wear parts 0 1 2 3 3 O-ring 4 x x x x 7 O-

155.3 Spare parts kits, sizes 41 - 52Item No. Description Qty SizeKits No. 1 Wear parts 4 5 3 Upper thrust bearing, 1 x

16 49 Studs Qty depends on actuator series 50 Nut sleeve Qty depends on

17 17 O-ring 2 4 for size 0 18 Screw 4 8 for size 0 19 Visual indicator 1 20 Stem sleeve 1 None for size

186.2 Single-action actuator with spring return NAF 791292 and 791294 Item Description Qty/ Remarks No. actuato

19Fig. 19.1. Locations of components of sizes 11 - 32Size 41-426.3 Single- or double-acting actuators and spring-return actuators NAF 791290/92/94 I

22. MaintenanceIt the air consumption of the actuator is abnormally high or if its operating speed is low, this may be due to wear or damage to the c

20 Item Description Qty/ Remarks No. actuator 20 Protective cover 1(0)* 21 Plug 0(1) For blank

3Fig. 2.1. NAF-Turnex, sizes 1 - 3Sizes 4-5 (Fig. 19.4)1. Remove the air cylinder retaining bolts (12) and carefully remove the cylinder.2. Wit

42.2 Checking for damage and wearSize 0The following parts should always be replaced: Lever bearings (38) O-rings (3, 7, 17, 27, 37)If the air cons

5Remove the circlips (11 and 22, or 19 and locking clip 10A). The figures refer to sizes 0-3 and 4-5 respectively. The pins and links can now be remove

61. To remove the bush. The easiest procedure is to make a drift as shown in Fig.6 for link and lever bushes, and a drift as shown in Fig.7 for the

7Sizes 1-31. Make sure that all parts have been thoroughly cleaned. Wipe clean the cylinders (1, 16), bearing surfaces of the lever (21), and o

87. Grease the O-rings (30, 43) and fit the rings into the cylinders (35).8. Apply a thin film of grease to the surfaces of the cylinders (35

9109482761353aFig. 10. Complete spring-return unit in sizes 0 and 1 - 35. Place the complete spring assembly (3) with its guide pins (3a) in the c