Yale 4H42, Manual

Page: 15 / 36

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
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June 2022
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5 Inspection and maintenance
WARNING
Danger to life, injury or material damage due to improper inspection or maintenance.

Ensure that people who perform inspection and maintenance are authorised to carry
out this work.

Observe the national and local safety and accident prevention regulations, the occu-
pational safety acts and environmental provisions.

Before starting work, disconnect the machinery from the power supply and secure it
against an unintentional restart.

Work on the motor must only be carried out on the unloaded wire rope hoist and with
the bottom hook block lowered.

Use a lifting platform for work that cannot be carried out from the ground. Use a
safety harness when performing any work outside of lifting platforms.

Wear the prescribed personal protective equipment.

Secure the danger zone.

Observe inspection and maintenance intervals.

Document the results and any measures implemented.

Keep a sufficient safety distance from the product.

Do not stand under suspended loads.

Use only original spare parts from the manufacturer.

Tighten bolted connections to the prescribed tightening torques with a torque wrench.