Fisher 657 Sizes 100 Instruction Manual Download Page 1

D100307X012

   

   

 

Introduction

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Scope of Manual

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Description

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Specifications

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Installation

2

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Actuator Mounting

3

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Loading Connection

3

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Adjustments

3

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Travel

3

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Spring

4

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Size 80

4

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Size 100

4

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Maintenance

5

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Actuator

5

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Size 80 Disassembly

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Size 80 Assembly

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Size 100 Disassembly

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Size 100 Assembly

8

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Size 80 Side-Mounted Handwheel

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Size 80 Side-Mounted Handwheel: Disassembly 9
Size 80 Side-Mounted Handwheel: Assembly

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Size 80 Hydraulic Snubber

9

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Size 80 Top-Mounted Handwheel

10

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Size 80 Top-Mounted Handwheel: Disassembly 10
Size 80 Top-Mounted Handwheel: Assembly

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Size 100 Top-Mounted Handwheel

10

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Size 100 Top-Mounted Handwheel:

Disassembly

10

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Size 100 Top-Mounted Handwheel: Assembly

11

Parts Ordering

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Parts List

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Figure 1. Sectional view of Type 657 Size 100 Actuator

W0366-1 / IL

Figure 2. Schematic Representation of Type 657 Actuator

SPRING 
LIFTS

AIR PUSHES
STEM DOWN

AF3833-A
A0792-2/IL

Instruction Manual
Form 1909
February 1999

Type 657 Sizes 80 & 100

Summary of Contents for 657 Sizes 100

Page 1: ...0 Side Mounted Handwheel Assembly 9 Size 80 Hydraulic Snubber 9 Size 80 Top Mounted Handwheel 10 Size 80 Top Mounted Handwheel Disassembly 10 Size 80 Top Mounted Handwheel Assembly 10 Size 100 Top Mou...

Page 2: ...llow for typical regulator supply settings and or relief valve tolerances Scope of Manual This instruction manual provides information on instal lation adjustment maintenance and parts ordering for th...

Page 3: ...he stem con nector can result in stripped threads or improper operation Be sure that the length of each stem clamped in the stem connector is equal to or greater than the diameter of that stem Figure...

Page 4: ...r band key 60 figure 5 insert a rod of approximately 1 2 inch 12 7 mm diameter into a hole in the adjusting screw key 12 figure 5 and rotate the adjusting screw with the rod Rotating the screw from le...

Page 5: ...necessary The frequen cy of inspection and replacement depends on the se verity of service conditions Because of the care Fisher Controls takes in meeting all manufacturing re quirements such as heat...

Page 6: ...ing flange key 36 with Never Seez Nickel Special lubricant key 244 or equivalent Replace the adjusting flange adjusting screw and thrust bearing keys 36 12 and 35 Pack bearing with Lubriplate MAG 1 lu...

Page 7: ...below and carefully remove casing cap screws key 22 step 7 below 1 Remove shroud plate key 107 loosen jam nut key 115 and rotate adjusting nut key 114 until spring compression is relieved Note To reli...

Page 8: ...plate Note When you replace actuator diaphragms in the field take care to ensure the dia phragm casing bolts are tightened to the proper load to prevent leakage but not crush the material Perform the...

Page 9: ...45 threads with Never Seez Nickel Special key 244 or equivalent lubricant and slide the shaft into the gear case so that the end of the shaft fits snugly in the back worm retainer 4 Insert the bearing...

Page 10: ...ht to left until spring compression is relieved Rotate handwheel to be sure it is not com pressing actuator spring 3 Unscrew cap screws key 141 and remove hand wheel assembly 4 Remove hex nut key 54 a...

Page 11: ...etainer with the hole in the gear case insert the set screw key 41 and tight en 5 Slide the handwheel onto the worm shaft key 45 and install retaining ring key 118 6 Pack the two thrust bearings key 6...

Page 12: ...side mtd handwheel Std 3K664819042 w lower boss tapped 3L921219042 Steel w o side mtd handwheel 3L448522012 w side mtd handwheel 3N364522012 Size 80 5H yoke Cast Iron w o side mtd handwheel Std 18A549...

Page 13: ...l 2 in 51 mm travel 2 req d 10A2606X012 3 in 76 mm travel 2 req d 1N538238992 4 in 102 mm travel 2 req d 1U372738982 19 Nameplate stainless steel 12B6508X0A2 20 Drive Screw stainless steel 4 req d 1A3...

Page 14: ...ide mtd handwheel 2H733619042 w side mtd handwheel 2H733519042 Steel Key Description Part Number 36 Adjusting Flange cont d w o side mtd handwheel 2L448122012 w side mtd handwheel 2L524422012 60 Cover...

Page 15: ...Bushing brass Size 100 20A2582X012 112 O Ring nitrile 2 req d Size 100 1H8627X0042 113 O Ring nitrile Size 100 1R834206992 114 Hex Nut pl steel Size 100 10A2618X012 115 Hex Jam Nut pl steel Size 100 1...

Page 16: ...65 Gear Case Cast Iron 3H735319042 Steel 3N101922012 66 Bearing Gear Retainer steel 1H735024392 67 Thrust Bearing 2 req d 1H735499012 Key Description Part Number 68 Cap Screw pl steel 6 req d 1H2151X...

Page 17: ...544424052 125 Hex Jam Nut cd pl steel 6 req d 1A351124122 126 Woodruff Key steel 1J464728992 127 Slot Cover plastic 10A2598X012 Figure 8 Top Mounted Handwheel for Size 80 Actuator APPLY LUB CV8009 E D...

Page 18: ...Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 Printed in U S A EFisher Controls International Inc 1973 1999 All Rights Reserved Fisher Fisher Rosemount and Managing The P...

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