Instruction Manual
D104709X012
8540 Valve
September 2021
18
Figure 11. Taper Pin and Hallow Pin Removal and Installation
REMOVAL TOOL
INSTALLATION
TOOL
HOLLOW PIN
VALVE DISK
REMOVAL TOOL
INSTALLATION TOOL
DISK HUB
REMOVE THE HOLLOW PIN FROM THIS SIDE OF THE DISK HUB.
1
NOTE:
TAPER PIN AND HOLLOW PIN LOCATIONS
B
C
j
A
0.01 x 45
5
0.010 UNDERCUT PER SIDE
0.03 x 45
5
0.06 x 45
5
j
A
15
5
D
E
j
B
j
C
Actuator Mounting
Re‐install the seal ring and packing rings using the appropriate procedures before installing the actuator on the valve.
Mount the actuator on the valve body in accordance with the instructions in the actuator instruction manual and this
section.
In the Packing Maintenance steps, you should have noted the position of the mark on the end of the valve shaft, and its
relationship to the actuator shaft. If not, determine the configuration needed to match your application.
Be certain that the disk is rotating counterclockwise to open when viewed from the actuator side of the valve, and that
the disk is not rotated beyond its limits.
1. Orientate the valve drive shaft correctly to match the actuator or handlever position, and install it into the actuator
and actuator lever arm until the mounting pads mate with each other.
2. Tighten the actuator‐mounting cap screws to the appropriate bolt torque from table 8.
CAUTION
The valve disk stop, in the valve body bore is not to be used as a power actuator travel stop (see figure 10). Use the actuator
travel stops to limit the rotation of the valve disk. It is possible to damage the valve component parts if full actuator thrust
is applied to the valve disk stop.
For actuators with an adjustable travel stop, the travel stop must be adjusted so that the valve is closed (determined by
measuring as shown in figure 7) when the diaphragm or piston is against the actuator at the travel stop.
For manually operated actuators or actuators without adjustable linkage, make certain that the travel of the actuator stops
before the disk rotates past the closed position.
