Inspection During Operation; Repair; Oil; Oil Changes - Danfoss VLT OneGearDrive Operating Manual

VLT® OneGearDrive®
Operating Guide

8.3 Inspection during Operation

Changes in relation to normal operation, such as higher temperatures, vibrations, or noises, indicate that the function is impaired.
To avoid faults that could lead, directly or indirectly, to injury to persons or damage to property, inform the maintenance staff re-
sponsible. If in any doubt, switch off the VLT® OneGearDrive® immediately.
Carry out regular inspections during operation. Check the VLT® OneGearDrive® at regular intervals for anything unusual. Also see
Maintenance Tasks.
Pay particular attention to:
• Unusual noises.
• Overheated surfaces (temperatures up to 70 °C (158 °F) may occur in normal operation), see
• Uneven running.
• Strong vibrations.
• Loose fastenings.
• Condition of electrical wiring and cables.
• Poor heat dispersion.
Overheated surfaces can be caused by incorrect gearbox selection or incorrect parameter setup in the drive. If irregularities or prob-
lems occur, contact Danfoss Service.

8.4 Repair

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Always contact the local Danfoss sales company for information about the repair policy.

8.5 Oil

8.5.1 Oil Changes

The VLT® OneGearDrive® is supplied with oil ready for operation.
The oil change period in part load is up to 35000 hours run (for motor characteristics at different loads, see
acteristics). The oil change interval is based on normal operating conditions and an oil temperature of approximately 70 °C (158 °F).
The oil change interval must be reduced at higher temperatures (halve the interval for each 10 K increase in the oil temperature).
The VLT® OneGearDrive® has drain and filling plugs that make it possible to change the oil without disassembly.
When changing the oil, inspect and, if necessary, replace the seals.
Flush the VLT® OneGearDrive® if the oil grade or oil type is changed (see

8.5.2 Oil Grade

The filled oil type is specified on the nameplate. Danfoss uses food grade oils that comply with NSF H1.
Do not mix different oil types as this may impair the characteristics of the oil.
Contact Danfoss for further information on oil types.

8.5.3 Oil Volume

The recommended oil quantity for the particular mounting position is indicated on the motor nameplate. After filling, check that
the oil level is correct using the oil dipstick supplied with the optional oil check service kit.
P1
Illustration 12: Mounting Positions
26 | Danfoss A/S © 2020.12
N O T I C E
P2 P3
Maintenance, Decommissioning,
9.4 Speed/Torque
8.5.4 Changing the Oil).
AQ347551551757en-000101 / 130R0239
and Disposal
8.2
Characteristics.
9.4 Speed/Torque Char-