DEMAG DC-II Operating And Maintenance Instructions Manual page 105

7 MAINTENANCE
4. Only carry out maintenance work on the chain hoist when the load has been removed.
5. Ensure that there is sufficient freedom of movement. Keep the operating area clean and
tidy. Loose parts or tools left lying around can cause accidents.
6. Stop all moving parts and ensure that they cannot start moving while maintenance work is
being carried out.
7. Observe the relevant accident prevention regulations, instructions concerning appropriate
use and statutory regulations for operation and maintenance.
8. Observe the relevant safety regulations (for example, VDE regulations) when repairing
electric equipment.
9. Reinstall safety devices as required by relevant regulations and check them for correct
operation after finishing maintenance work.
Maintenance work which is not possible from the ground may only be carried out from work
stands or platforms. The danger zone below the chain hoist must be fenced off if there is a risk
of falling objects.
7.4.3 Instructions for maintenance work in the course of operation
If maintenance work has to be carried out on the chain hoist in operation, special safety
precautions must be taken depending on the operating situation. In each individual case, the
owner or the person who is assigned by him must check whether the maintenance work may be
carried out during operation without risk of personal injury and, taking into account the local
conditions, must implement all necessary safety precautions.
Damaged or deformed spring clip fasteners and spring sleeves must be replaced.
Defective bolted connections must be replaced.
Make sure that operating and auxiliary materials and replaced parts are disposed of in an
environmentally friendly manner.
7.4.4 After finishing maintenance work
Safety devices must be reinstalled as required by relevant regulations and checked for correct
operation when maintenance work is finished.
NOTE Carry out a test run at partial load after the chain hoist has been fully reassembled. Make
sure that the chain runs smoothly during the test run.
7.5 Maintenance schedule
Activity
Check continuity of the PE conductor
connection.
Check emergency stop button.
Check directions of motion.
Check 7-segment display.
Check chain lubrication (under arduous
conditions, the chain must be lubricated more
frequently).
Check operation of the lifting-motion
operating limit switch.
Check operation of the lowering-motion
operating limit switch.
OPERATING AND MAINTENANCE INSTRUCTIONS
Section
–
–
"Mains connection"
"7-segment display for operating status
and fault display" and "Display of
software version, operating hours,
number of cycles"
"Available chains" and "Lubricating the
chain"
"Checking the operating limit switches"
"Checking the operating limit switches"
Before first
Before
putting into
starting work
operation
X
X
X
X X
X X
X X
X
During the
annual
inspection
X
X
X
X
105