Cummins/Onan ATUC A 800 - 4X / 111 — Mounting the Open-Construction AT (Wall Mounted)
Installation · Transfer switch panel
For the Cummins/Onan ATUC A 800 - 4X / 111, from the Cummins/Onan service manual.
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Procedure
- Carefully remove the crating from around the AT panel.
- Six 0.50-inch (13 mm) diameter mounting holes are furnished in the metal panel of the open-construction AT.
- Raise the panel (has lifting eye) with a hoist or similar lift, and mount using six 3/8-inch mounting bolts, lockwashers and nuts.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.