
3. Installation
TEC 2000 Installation & Operation Manual E2K-405-0902
3-2
3.2. Mechanical Installation onto the Valve
1.
Lower actuator over
Stem
onto valve flange
.
2. Insert the screws thru the valve flange into the actuator and engage at least one full screw
diameter deep into the bottom base.
3. Tighten to a preload. 5/16-18UNC = 17 ft-lb, 3/8-16UNC = 50 ft lb, 5/8-11UNC = 225 ft-lb
lb, or 4/4-10UNC = 400 ft lb.
NOTE: Mounting screws are provided only if EIM supplied the adapter. Verify screws are
though the adapter; engage a minimum of one screw diameter deep into the actuator base.
4. Screw the
Stem Nut
(piece #54) onto the
Stem
until it enters the
Drive Sleeve
.
5. Place
Key
(piece #52) in line with the
Drive Sleeve Keyway
(piece #54). Insert
Key
(piece #52).
6. Turn the Handwheel in the Open direction to pull the
Stem Nut
(piece #54) into the
Drive
Sleeve
until it bottoms out. NOTE: Valve will begin to open.
7. Place the
Locknut
(piece #55) over the
Valve Stem
. Screw the
Locknut
(piece #55)
firmly into place against the top of the
Stem Nut
(piece #54) using a drift to tighten.
CAUTION: Locknut must be screwed very tightly against stem nut.
3.3. Electrical Connections
3.3.1. Remove Separate Terminal Chamber (STC) Cover
X
WARNING: Verify power is disconnected before removing STC Cover.
Remove cover with a strap wrench, drift, or pinch bar by rotating the cover counter-
clockwise
Содержание TEC2000
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