Maintenance methods for KAZ67-13.22-5.5KW gear reducer in high temperature environment

For KAZ67-13.22-5.5KW in high-temperature environments, the core is "heat reduction strong lubrication stable installation strict monitoring", with temperature rise ≤ 40 K, maximum oil temperature ≤ 80-85 ℃, and vibration RMS ≤ 4.5 mm/s as control objectives.
Quick disposal checklist

Immediately stop the machine, tighten the foundation to the specified torque, and install spring washers/double nuts. Vibration operation is strictly prohibited.

Use integral steel pads or precision wedge-shaped pads, with each group consisting of ≤ 3 layers, contact ≥ 80%, and edge plug gauge ≤ 0.03 mm.

Laser/dial gauge centering to radial ≤ 0.05 mm, angular ≤ 0.1 °; Hot state reserved compensation; Replace the elastic coupling and control the pre compression of the elastic body.

Clean the box and heat sink to ensure that the ventilation cap is unobstructed; When the air cooling is insufficient, install forced air cooling or circulating oil cooling.

Replace with high-temperature synthetic heavy-duty gear oil (such as ISO VG 220-320), change the oil for the first 400 hours, and then for about 4000 hours or less thereafter; After draining the oil, rinse the box and filter with the same type of hot oil. It is strictly prohibited to mix different brands/types of oil.

Confirm that the lubrication is in place before starting the drive; It is strictly prohibited to operate at over temperature/overload/full load for a long time.

Key points for high-temperature special maintenance

Lubrication and oil quality

Selection: High temperature, heavy load priority synthetic heavy-duty industrial gear oil, focusing on viscosity index and oxidation stability.

Oil change: The new machine needs to be replaced after 400 hours, followed by approximately 4000 hours or less; Rinse with hot oil before changing, and mixing is strictly prohibited.

Monitoring: Check the oil level weekly; Monthly visual/odor preliminary assessment; Oil testing (viscosity, acid value, moisture, impurities) should be conducted at least once a year, and any excess should be replaced.

Heat dissipation and environment

Surface cleaning: Regularly clean the dust/oil stains on the box and heat sink to restore heat dissipation efficiency.

Ventilation and cooling: forced air cooling or circulating oil cooling; When the equilibrium temperature is greater than 90 ℃ or exceeds the thermal power PG1, use circulating oil+cooling coil instead.

Installation and alignment

Base and pad iron: integral steel pad/precision wedge-shaped pad iron, contact ≥ 80%, edge plug gauge ≤ 0.03 mm; the foot is tightened diagonally in stages, with anti loosening installed and re tightened within 72 hours.

Alignment and coupling: strict alignment; Select a high elasticity coupling for high temperature/impact conditions and control the pre compression within ± 10% of the nominal value.