SEW-Eurodrive D 16, Руководство по эксплуатации

Страница: 38 / 52

7
Operation and Service
Customer service
38
Operating Instructions – Explosion-Proof VARIMOT
®
Variable Speed Gear Units and Accessories
7 Operation and Service
7.1 Customer service
7.2 Malfunction of VARIMOT
®
speed gear units
• To eliminate malfunctions, the gear unit and additional equipment must be
deactivated. Prevent the drive unit from starting up unintentionally (for
example, by locking the keyswitch or removing the fuses from the power
supply). Place an information sign by the on-switch to warn that the gear unit
is being worked on.
• Strictly observe the safety notes in the individual sections.
Please provide the following information if you require the assistance of our customer
service:
• Nameplate information (complete)
• Nature and extent of the problem
• Time the circumstances of the problem
• Presumed cause
Problem Possible cause Solution
Drive slips or speed monitoring
is triggered
Friction ring is worn
• Replace friction ring
(see Sec. "Inspection /
Maintenance", Replacing
the friction ring)
Friction ring or drive disc contact
surface is contaminated
• Replace friction ring
(see Sec. "Inspection and
Maintenance", Replacing
the friction ring)
• Clean drive disc with solvent
or similar product
Load is too high
Check power consumption and
reduce to catalog values
Drive warms up excessively Load is too high See above
Drive is too loud
Friction ring is damaged
Note:
Damage can occur, for instance
•
After brief stalling of the drive
• With impulse loading of the
drive
1. Eliminate the cause
2. Replace friction ring with
original SEW spare part
(see Sec. "Inspection and
Maintenance", Replacing
the friction ring)
Meshing/grinding noise Bearing damage:
Change bearing (call customer
service)
Rated motor power is not
transferred
Speed range too low Increase speed range