COPES-VULCAN INSTRUCTION MANUAL
MODEL 700 DIRECT-ACTING ACTUATOR
Rev.5 (08/10) Page 16 of
20 Form 01:P224:37
3.7 SIDE-MOUNTED HANDWHEEL
(Refer to Figure 3)
3.7.1 Disassembly (Cont’d.)
D. Remove the two remaining retaining rings (Item C19), remove the two worm shaft bearings
(Item C17), then rotate and remove the worm shaft (Item C16).
E. Lift the threaded sleeve weldment (Item C11) and worm gear (Item C14) subassembly from
the gear housing (Item C9).
F. Remove the socket head cap screws (Item C6), hex nuts (Item C8) and lockwashers
(Item C7), then remove the gear housing from the clearance chamber (Item C3).
G. Remove the clearance chamber (Item C3) by unthreading the hex nuts (Item C5) and
lockwashers (Item C4).
H. If necessary, remove the handwheel actuator stem (Item 11) by unthreading the stem from
actuator stem.
3.7.2 Assembly
A. Assemble the actuator per Steps A through F in Paragraph 3.3.2, except, in Step A, install
the handwheel actuator stem (Item 11) instead of the flat head screw (Item 11 in Figure 1).
Torque the stem to the value shown on the assembly drawing.
B. To assemble the handwheel, follow the steps in Paragraph 3.7.1 in reverse order. Apply
grease to the worm gear teeth and the threaded sleeve weldment threads. For assembly
torques, refer to the assembly drawing.
C. Set the position of the threaded collar so that, when the actuator is open and the handwheel
is in the open position, there is gap of approximately 0.06" (1.5 mm) between the threaded
collar and the threaded sleeve weldment (Item C11).
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