| Specification | PS-855B Unit Details | | :--- | :--- | | | 7.820"H x 14.085"L x 2.400"W | | Weight (Maximum) | 13.7 lbs. | | Normal Input Power | 28 VDC, 15 Amps | | Battery Output Voltage | 24 to 28 VDC | | 5 VDC Converter | Adjustable +2.5 to 5.5 VDC, capable of delivering 25 watts | | Battery Output Current (Steady State) | 10 Amps max | | Overload Capability | 15 Amps for 5 minutes | | Overload Protection | 25 Amps max | | Heater Current (Amps) | 3.85 ± 0.6 Amps max at 28 VDC | | Amp/Hour Rating | 5.0 Amp/Hour | | Service Life | Unrestricted Service Life |
Visually inspect large electrolytic capacitors for bulging tops or leaked crust. Measure capacitance and ESR value; replace if out of spec. Faulty current control circuit or open driver transistor. ps-855b maintenance manual
to identify the correct part number (501-1712-02) if a replacement is required. PS-850/PS-855 Component Manual | PDF - Scribd | Specification | PS-855B Unit Details | |
If the brand is known, email their technical support. Provide: Faulty current control circuit or open driver transistor
The MT855B is a track tractor from AGCO's Challenger MT800B Series. A service manual is essential for performing repairs and maintenance on this heavy equipment.