Hesston 700720120 is a baler control console used on 5‑tire accumulator balers; it houses the main PLC, motor drives and safety interlocks that govern feed, compression and discharge cycles. Common faults in this class of units include power supply failures (brownouts or tripped fuses), degraded I/O modules or contactor coils, and worn mechanical linkages to the drive shafts, often manifesting as intermittent cycle stops or error codes on the panel display. First‑check diagnostics: verify 48 V DC bus voltage and AC input integrity; inspect all relays, contactors and fuse ratings for signs of arcing or overheating; review any stored fault logs on the PLC for recurring patterns such as “motor overcurrent” or “safety interlock failure.”[oss-gpt-20b]