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MAINTENANCE
TYPE 80 ACTUATOR
INTRODUCTION
Type 80 is a three position actuator that will require minimum maintenance. It is similar to the
Type 10 & 20 spring return actuators except for a mid position adjustment assembly. Installation,
adjustment, maintenance, partial disassembly, and assembly instructions are covered below.
INSTALLATION
Connect air supply to the two
1
/
8
-27 FNPT ports. Each port is identified permanently to indicate
operation. MID — air supply causes actuator to extend to mid position. FULL — air supply
causes actuator to extend fully. Air Supply Specification: 60 - 80 psig.
Part Number
Qty
Description
1
17-98
1
Packing
2
17-345-U
1
O-Ring
3
25-454-06
1
Bushing
4
17-35-U
1
O-Ring
5
25-454-09-316L
1
Spacer
6
25-428-05
1
Seal Retainer
7
25-454-01-S
1
Cylinder Ass'y
8
25-454-07-S
1
Retainer
9
17-149-U
2
O-Ring
10
25-454-05-316
1
End Cap
11
25-454-10-316
1
Cover Plate
12
LWA1300-SS
4
Lockwasher
13
SC1315H-SS
4
Hex Bolt
14
13-170-S
1
Adjusting Nut
15
16-163
1
E-Ring
16
25-454-08
1
Adj. Nut Cover
Type 80 Actuator Replacement Parts
Full
Mid
ADJUSTMENT
There is one adjustment and it sets the mid position stop. This stop determines the length of mid
position stroke.
1
Loosen four end cap bolts until plastic adjustment knob can be turned by hand.
2
Turn plastic knob as described below for required action. COUNTERCLOCKWISE —
Increase Stroke, CLOCKWISE — Decrease Stroke
3.
Tighten four end cap bolts.
BUSHING/PACKING REMOVAL
The valve end contains one bushing and packing identical to Type 10, 20, and 30 actuators.
They are located on the valve end of the actuator.
1
Disassemble the actuator from the valve completely.
2
Assemble the yoke to the actuator without the green bushing retainer. Assemble the valve
stem to the actuator stem.
Содержание 741 Series
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