Ps-855b Maintenance Manual [hot] ✰
Use specialized diagnostic equipment like the . Run hands-free profiling to log cell trends automatically.
Complete Maintenance Guide for the PS-855B Emergency Power Supply
Multiple versions of the swingo 855B manual are available on manual repository sites.
Ensure ambient temperatures and ventilation clearance around the unit meet factory specifications. Monthly Maintenance Tasks ps-855b maintenance manual
Desolder the rear 2N3055 power transistors. Use a diode test on your DMM to find the shorted transistor and replace it. Degraded or leaking main filter capacitors.
A: The PS-855B has a higher battery capacity (5.0 Amp/Hour) to support more demanding emergency loads. This requires larger batteries, which results in the weight difference (13.7 lbs for the PS-855B vs. 9.1 lbs for the PS-855A).
Before you open the maintenance manual, you need to understand what the PS-855B is. Use specialized diagnostic equipment like the
Accumulated dust restricts airflow, leading to thermal throttling or premature component failure. Power down and isolate the PS-855B. Remove the retaining screws from the cooling fan guard.
The battery within the PS-855B unit must be treated with care, particularly regarding discharge rates.
Only install a replacement fuse that matches the exact amperage, voltage, and speed ratings specified on the PS-855B chassis plate. 4. Troubleshooting and Fault Isolation Degraded or leaking main filter capacitors
The L3Harris PS-855B maintenance manual covers a range of essential tasks. Here's a breakdown of the most critical procedures you can expect to find.
This is the single most important test for the PS-855B. It's a built-in, automated test that measures the battery's ability to hold a charge and deliver power under load.
Regular preventative maintenance extends the operational lifespan of the PS-855B and prevents unexpected component failure. Monthly Maintenance
Clean the intake fan filters using low-pressure compressed air (maximum 30 PSI).
Pricing and availability are subject to change and were valid as of April 24, 2026.