Wait at least 10 minutes for high-capacity electrolytic filter capacitors to bleed off stored energy. Verify zero voltage across capacitor terminals using a digital multimeter (DMM).

: Detailed product data, including voltage outputs and weight for the PS-855B, can be found at Seaerospace . TP 483 - PS 850 PS 855 - Rev.B | PDF | Electricity - Scribd

Wipe the surrounding shroud with a lint-free microfiber cloth. Fuse and Circuit Protection Replacement