Fisher 657 - Page 20

Instruction Manual
D100307X012
657 Size 80 and 100 Actuators
December 2010
20
Size 80 Side‐Mtd Handwheel
Key Description Part Number
7 Travel Stop
17 Machine Screw
28 Machine Screw
40 Set Screw
41 Set Screw
44 Worm Gear
45 Worm Shaft
46 Lower Sleeve
47 Key
48 Front Worm Retainer
49 Back Worm Retainer
50 Ball Bearing
51 Handwheel
52 Handgrip
53 Handgrip Bolt
54 Handwheel Cap
55 Ball
56 Spring
58 Travel Indicator
61 Grease Fitting
64 Cap Screw
65 Gear Case
66 Bearing & Gear Retainer
67 Thrust Bearing
68 Cap Screw
69 Indicator Scale
70 Stop Indicator Bracket
71 Machine Screw
243 Pliable sealant (not furnished with actuator) ‐‐‐
Size 80 Top‐Mtd Handwheel
(Adjustable Up Travel Stop)
51 Handwheel
54 Nut
133 Stem
141 Cap Screw
142 Handwheel Body
175 Thrust Bearing
179 Pressure Block
180 Gland
181* Packing Ring, TFE‐graphite (2 req'd) 1D7496X0012
182 Support Screw
183 Stem Collar
184 Retaining Ring
185* Gasket, composition 1J789504022
186 Body Nut
241 Lithium grease (not furnished with actuator)
246 Spacer
247 Cotter Pin
Size 100 Top‐Mtd Handwheel
(Adjustable Up Travel Stop)
Key Description Part Number
17 Machine Screw
40 Set Screw
41 Set Screw
44 Worm Gear
45 Worm Shaft
48 Front Worm Retainer
49 Back Worm Retainer
50 Ball Bearing
51 Handwheel
61 Grease Fitting
65 Gear Case
66 Bearing & Gear Retainer
67 Thrust Bearing
118 Retaining Ring
122 Power Screw Ass'y
123 Gear Case Cover
124 Cap Screw
125 Hex Jam Nut
126 Woodruff Key
127 Slot Cover
Size 80 Hydraulic Snubber
27 Piston/Piston Rod Ass'y
63 Hex Nut
72 Spring Case Adaptor
73 Cap Screw
74 Cylinder
75 Cylinder Head
76 Retaining Ring
77* O‐Ring, nitrile (2 req'd) 1F449206992
78* Piston Ring, iron (2 req'd) 1C710321992
79 Reservoir
80* O‐Ring, nitrile 1H624706992
81 Cap Screw
82* O‐Ring, nitrile (2 req'd) 1D687506992
83 Valve Adj Screw
84 Jam Nut
85 Cap Screw
86 Pipe Plug
87 Pipe Plug
90 Upper Spring Seat
93 Hydraulic Fluid
94* O‐Ring, nitrile (2 req'd) 1E591406992
95 Orifice
96 Bypass & Check Valve Plug
97 Spring
98 E‐Ring
99 Bushing
100 Flange
101 Packing Sleeve
102 Machine Screw
103* Packing, nitrile (8 req'd) 1P540806992
104* Packing, CR (chloroprene) & cotton (4 req'd) 1P540906992
105* Packing Sleeve O‐Ring, nitrile (2 req'd) 1P541206992
*Recommended spare parts