Regular Inspections; Required Tests And Inspections; Special Operating Conditions; Service Life Of The Contactor - DEMAG DC-Com 1 Operating Instructions Manual

After finishing maintenance work
Re-install safety devices as required by relevant regulations and check them for correct operation after finishing
maintenance work.
Carry out a test run at partial load after the chain hoist has been fully re-assembled. Ensure that the chain runs
smoothly during the test run.
8.3

Regular inspections

8.3.1

Required tests and inspections

WARNING
Non-compliance with operating and maintenance regulations
Danger to life and limb.
Required tests and inspections must be carried out.
– An annual inspection, e.g. as specified in German accident prevention regulations UVV/BGV D8 Sec‐
tion 23 (2) and BGV D6 (1) must be carried out.
– Adjustment, maintenance and inspection activities and inspection deadlines including specifications con‐
cerning the replacement of parts/assemblies prescribed in the operating instructions must be observed.
This work may only be carried out by specialist personnel.
Hoists and cranes must be inspected by an experienced technician at least once a year. Regular inspections
mainly consist of a visual inspection and a function check which should include a check to determine the condition
of components and equipment regarding damage, wear, corrosion or other alterations and a check to determine
the integrity and efficiency of safety devices.
Regular inspections must be carried out in accordance with BGV D6 and BCG 905 "Principles for the inspection
of cranes" in Germany.
It may be necessary to remove parts in order to inspect wearing parts. Defective parts and components and parts
close to failure must be replaced.
Load-bearing media and suspensions must be inspected along their entire length, including those parts which
cannot normally be seen. A function and brake test with a load (test load that is close to the maximum permissible
load capacity) must be carried out.
Please also see  "S.W.P. measures for achieving safe working periods", Page 65 and  "Maintenance sched‐
ule", Page 68.
Updating the test and inspection booklet
● All inspections must be arranged and documented in the test and inspection booklet by the owner.
8.3.2

Special operating conditions

CAUTION
Premature wear of the chain.
Danger of falling load.
Special operating conditions or the design of the chain hoist may make it necessary shorten the maintenance
and inspection intervals.
– If, for example, the unit always brakes heavily at the same position and with a heavy load, increased wear
may occur on the chain links that are in the area of the chain or return sprocket when the brake is applied.
8.3.3

Service life of the contactor

The switchgear is subject to wear when the chain hoist is operated. Its service life has been rated for the specified
loading group. Premature wear may occur if the equipment is frequently started and stopped.
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