Cummins/Onan — Mounting the Cabinet
Installation · Transfer switch cabinet
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Before you start
- Transfer switch cabinet is heavy and can cause serious injury if dropped. Keep hands and feet clear while lifting cabinet.
Procedure
- Place the shipping box upright and carefully open and remove the shipping box.
- Check the unit for completeness and general condition.
- Use 3/8 inch mounting studs to anchor the cabinet to the floor; refer to the outline drawing for spacing.
- Use six mounting studs to secure the 400 Amp model; use eight for the 800 and 1000 Amp models.
- Hoist the cabinet into position using appropriate lifting equipment; the two eyebolts at the top may be used.
- Place a flat washer and nut on each stud and tighten securely; the floor must be flat or the cabinet may be distorted.
Tools required
- Lifting equipment Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 3/8 inch mounting studs
- 6 mounting studs for 400 Amp; 8 mounting studs for 800 and 1000 Amp
- Two steel rails attached to the bottom of the cabinet for mounting
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.