7. Maintenance - Replacement Procedures
Revision 5
10260S HercuLine® Actuator Installation, Operation and Maintenance Manual
87
7/07
Replacement Procedures
Fuse Replacement
The motor drive circuit contains two fuses. They are located on the power distribution PWA. If it becomes
necessary to replace these fuses, follow the procedure in Table 32 and refer to Figure 32 for fuse location.
WARNING
Disconnect power before opening the actuator case to replace the fuse(s). A potentially lethal
shock hazard exists inside the case if the unit is opened while powered.
Table 32 Motor Drive Fuse Replacment Procedure
Step
Action
1
Remove AC power from actuator.
2
Remove the seven screws and the extended cover of the actuator case. See Figure 31.
3
Lay assembly down on a flat surface and remove old gasket.
4
Locate the two fuses on the power distribution PWA. See Figure 32. Carefully remove and
replace fuse(s) with Wickmann T1 type 6A 250V, or equivalent.
5
Install a new gasket and replace extended cover. Secure to actuator with screws.
Extended
Cover Assembly
Power
Distribution
PWA
Relay 1 and 2
PWA
Relay 3 and 4
PWA
Figure 31 Power Distribution PWA and Relay PWA Locations
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