Rockwell Automation 2364F DC Link Fuse Upgrade Kit for RGU Parallel w/ NRU - Manual (Page 7)

DC Link Fuse Upgrade Kit for RGU in Parallel with NRU 7
1. Locate the fuses on the top of the power structure bay (the right-hand
bay). D-Frame and E-Frame RGUs have two output fuses (one for DC+
and another for DC-). The component designators are F21 and F22.
Figure 5 illustrates the fuse location in an RGU with two fuses.
2. Remove the nut and washers from each pole of the fuse holder. Note the
orientation of this hardware. Some washers such as clamp and Bellville
have only one correct orientation for installation. Place these parts in the
order removed, on a clean surface. You will need to reuse these parts.
3. Remove the old fuse and install the new one.
4. Re-install the mounting hardware in the correct orientation. Tighten the
nut with 16 lb.-ft. of torque.
5. Replace the old fuse tag with the new one.
6. Repeat for the second fuse.
G-Frame and H-Frame Fuse Replacement
Figure 6 Fuse Location In RGU With Four Fuses
1. Locate the fuses on the top of the power structure bay (the right-hand
bay). G-Frame and H-Frame RGUs have four output fuses (two for DC+
and two for DC-). The component designators are F21, F21A, F22 and
F22A.
Figure 6 illustrates the fuse location in an RGU with four fuses.
2. Remove the bolt, nut and washers from each pole of the fuse. Note the
orientation of this hardware. Some washers such as clamp and Bellville
have only one correct orientation for installation. Place these parts in the
order removed, on a clean surface. You will need to reuse these parts.
3. Remove the old fuse and install the new one.
4. Re-install the mounting hardware in the correct orientation. Tighten the
nut with 45 lb.-ft. of torque.
5. Replace the old fuse tag with the new one.
6. Repeat for the other fuses.