4.10 Mains Plate Bracket
The Mains Plate is used to secure the mains cable conduit to the compressor. The Mains Plate may have different
size openings, but the installation is identical across all models of the compressors. The illustrations in this section
are of the TTS350 and all removal and installation steps of the various TTS/TTH/TGS/TGH compressors are the same.
Figure 4-72 Mains Plate Bracket
4.10.1 Mains Plate Bracket Removal and Installation
4.10.1.1 Mains Plate Bracket Removal
1. Isolate compressor power as described in Section 1.8 Electrical Isolation on page 22.
2. Disconnect the mains input cables from the Terminal Block.
3. Disconnect the main input ground cable and Soft Start ground wire from the ground post.
4. Remove the lower nut from the ground post.
5. Remove the cable gland that secures the mains input cable conduit to the Mains Plate.
6. Remove the two (2) M6x16 fasteners that secure the Mains Plate. Refer to Figure 4-72 Mains Plate
7. Remove the Mains Plate.
4.10.1.2 Mains Plate Bracket Installation
1. Install the Mains Plate using the M6x16 fasteners and torque to 7 Nm (62 in.lb.).
2. Install the cable gland.
3. Install the lower nut to the ground post and torque to 20 Nm (15 ft.lb.).
4. Install the Soft Start ground wire on top of the lower nut and torque the jam nut to 7 Nm (62 in.lb).
5. Install the ground cable for the mains on top of the jam nut with the lock washer and torque the upper
nut to 10 Nm (7 ft.lb.) Refer to Figure 4-73 Ground Post Nuts on page 97.
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