M
AINTENANCE
8.13. Check lowering limiter
WARNING
Danger from chain fracture
If the buffers are damaged, inadmissibly high
loads may act on the chain upon actuation of the
lowering limiter. The chain may break.
I
Do not use the product
I
Have the product repaired (replace buffer)
1. Move the unloaded load hook until just short
of the lower end position.
2. Stop immediately before reaching the end po-
sition and then carefully (by repeatedly press-
ing the control element) move to the end posi-
tion.
3. The movement of the chain must be stopped
due to deformation of the buffer. The engine
will stall in the process.
4. Following successful testing, the buffer must
be unloaded.
8.14. Check chain
WARNING
Danger from chain fracture
If the chain of your product
PROFI 3 TI
has one
of the features listed below, the chain may break
upon further use.
I
Do not use the product
I
Replace the chain
•
Corrosion pitting
•
Bent or damaged chain links
•
Chain drawn tight
•
Wear over 11 pitches (dimension A)
•
Single pitch wear (dimension B)
•
Diameter reduction of a chain link (dimension
C)
•
Elongation of a chain link (dimension D)
Check the entire length of the chain. When check-
ing the replacement limit, future wear up until the
next inspection date must be taken into account.
If the chain dimension values are outside the limit
values specified in the table when checked, the
chain has reached its replacement limit and must
be replaced by a new one.
The chain sprockets must also be replaced to-
gether with the chain, as otherwise the new chain
will be subjected to increased wear. Each chain
replacement must be documented in the inspec-
tion log.
Please observe the information contained in
,
→
DIN 685, Part 5
,
→
ISO 7592
Page
50
of 60
Doc.-No.: VA053957-40-OM-EN-0720-60-2
