Maintenance And Repair; Maintenance Tasks; Replacing The Shaft Seal; Inspection During Operation - Danfoss VLT ISD 410 Operating Instructions Manual

Maintenance and Repair

10 Maintenance and Repair

10.1 Maintenance tasks

The servomotors are largely maintenance free. Only the
bearings and the shaft seals are subject to wear.
The maintenance tasks listed in the following table may be
performed by the customer. No other tasks are required.
Send the servomotor to Danfoss if it needs to be (fully)
overhauled.
Component Maintenance Maintenance
Task Interval
Servomotor Clean Regularly or
as necessary
Bearings Check for As part of
bearing noise regular
operational
inspection
Shaft seal Replace shaft Every 2 years Always replace
seal
Hybrid Check for Every 6
cable damage and months
wear
Brake Danfoss Number of
(option) Service allowed
emergency
stops
exceeded
Table 10.1 Overview of Maintenance Tasks

10.1.1 Replacing the Shaft Seal

NOTE
Use only manufacturer spare parts. Danfoss accepts no
responsibility for any damage resulting from the use of
parts not approved by Danfoss.
The spare parts kit (shaft seal, grease and service
instructions) can be ordered under part number 175G7706.
A special tool is necessary for fitting the seal. It can be
ordered under part number 175G7707 with the first order.
®
VLT ISD 410 Servomotor Operating Instructions

10.2 Inspection during Operation

Carry out regular inspections during operation. Check the
servomotors at regular intervals for anything unusual.
Pay particular attention to:
Instruction
Clean the surface
with a dry cloth
Order a new ISD
servomotor when
the forward motion
In the event of irregularities or problems, see 9.1 Trouble-
limit is reached
shooting.

10.3 Repair

If damaged or worn:
replace hybrid cable
NOTE
(see
Always return defective servomotors to Danfoss
chapter10.3.1 Cable
Replacement)
The repair tasks listed below may be performed by the
Inform Danfoss
customer.
HIGH VOLTAGE
Potentially lethal voltage is present on the connectors.
Before working on the power connectors (disconnecting or
connecting the cable), disconnect the power supply
module from the mains and wait for the discharge time to
elapse.
®
MG75D102 - VLT is a registered Danfoss trademark
•
Unusual noises
•
Overheated surfaces (temperatures up to 100 °C
may occur in normal operation)
•
Uneven running
•
Strong vibrations
•
Loose fastenings
•
Condition of electrical wiring and cables
•
Poor heat dispersion
WARNING
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