If the brake is not releasing fully, the motor will work against the resistance, generating extreme heat. 3. Basic Maintenance Checklist Chain Lubrication:
Demag markets a line of specialized hoists designed for high-temperature environments, often referred to as "Hot Line" hoists.
Checking operation of the gearbox and slipping clutch. 59. 7.3.4. Checking the hook safety catch. 59. 7.4. Switching off. 60. 7.5. Demag Cranes The Ultimate Guide to Demag DC Chain Hoist Error Codes demag pk2n manual hot
: Often features a main speed of 10 m/min and a precision (creep) speed of 2.5 m/min.
Measure the gap between the brake coil and armature plate. An incorrect gap can cause the brake to drag. If the brake is not releasing fully, the
In the context of industrial hoists and specifically within Demag terminology, "HOT" usually refers to one of two things:
For DIY maintenance, this usually involves checking the brake and electrical system. If the unit has sat idle for years, you may need to clean the friction linings of the brake with brake cleaner. In some cases, the pilot lamp (HL) might need replacing to eliminate electromagnetic interference (EMI) issues. Checking operation of the gearbox and slipping clutch
The Ultimate Guide to the Demag PK2N Manual: Operation, Maintenance, and Troubleshooting
While specific to newer DC units, general troubleshooting for Demag hoists often involves checking the pendant control control cable plugs internal encoders Discard Criteria:
If the official site requires a login, use industrial manual aggregators. Search exactly: "Demag PK2N Betriebsanleitung" (German operating manual) or "Demag PK2N Instruction Manual.pdf" Note: Ensure you get the , as these contain the newer magnetic contactor wiring.