A2 abnormal noise, sinking or vibration: Check the balance system bearings, pressure, mechanical limit and connecting rod fixation.
Wrist abnormal noise or positioning drift: Check the transmission shaft teeth, straight wrist teeth, bearings, and lubrication status; If worn or discolored, replace the drive shaft or straight arm.
Gear oil leakage: Check the magnetic plug, oil pipe, service valve, O-ring, and gearbox seal, and tighten according to torque.
Motor overheating: Check the load, duty cycle, ambient temperature, cooling, brake holding, and motor current to confirm that the load data has been input into the controller.
Cable wear or interference: Check the cable group, bending radius, shielding, separate laying, and A1 cable group lubrication.
Zero point loss: Mastering A1 to A6 again.
Abnormal braking: Conduct a braking test to check the parameters of the brake, motor, and controller.
Automatic mode cannot start: check safety door, operate safety signal, external emergency stop, confirm button, and mode selection.
Abnormal noise after replacing the straight wrist: Check if the teeth are damaged, if the screw torque reaches 250 Nm, if A4/A6 is in the zero position, and if the mastering is correct.
After replacing the balance system, the pressure is unstable: check the hydraulic oil filling amount, accumulator pre charge pressure, exhaust and leakage.
Insufficient lubrication of the main bearing: Add LGEP 2 through 4 lubrication nozzles at positions 0 °,+30 °, and+60 ° in A1 every 2000 hours or 6 months.
Oil contamination or insufficient oil level: Check the discharged oil level. If it is below 70% or 50%, perform flushing and use the specified oil.
After maintenance, functional testing must be conducted to ensure that all safety functions are effective. The replaced components must use original parts or equivalent approved parts. Screws with a rating of 10.9 or above or certified by testing can only be tightened once to the rated torque, and must be replaced after loosening. Common auxiliary materials include Drei Bond 1305、Drei Bond 1342、Drei Bond 5204HV、Loctite 510、Hyspin ZZ 46、LGEP 2、LGEV 2、Microlube GL 261、Optitemp RB2、Optigear ALR 320 And Optigear Synt. ALR 150.
Key points of standards and compliance
KR 1000 titanium involves the Machinery Directive 2006/42/EC, EMC Directive 2014/30/EU, Pressure Equipment Directive 2014/68/EU, as well as standards such as EN ISO 10218-1, EN ISO 12100, EN ISO 13849-1/-2, and EN ISO 13850. The F variant has higher dust, lubricant, coolant, and water vapor resistance, and adopts a special paint surface and transparent protective coating. If used for other environmental conditions, KUKA Deutschland GmbH must be consulted. The balance system contains nitrogen and hydraulic oil, which may involve UN 3164 during transportation, and must be depressurized before disposal. Industrial robots must be integrated into a complete system and undergo compliance assessment before they can operate.
Overall, the reliability of KUKA KR 1000 titan and KR 1000 L750 titan depends on the installation foundation, balance system, gear oil, linear arm, motor, and safety circuit. Regularly checking pressure, oil level, teeth, clearance, and torque can detect abnormalities in the early stages of faults. When encountering abnormal pressure, abnormal noise, leakage or shutdown, first lock it safely, and then investigate according to the levels of power supply, safety circuit, balance system, linear arm, gear oil and motor. This can reduce unplanned downtime and maintain stable operation of overloaded robots under harsh working conditions.
