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The chain must be discarded and replaced if:
•
cracks are detected on any link
•
any link is deformed or otherwise damaged
•
The minimum value of any link's diameter falls short
•
the maximum value of the pitch dimension is exceeded at any point
•
the chain is damaged by overheating or has been affected by weld splatter
Chains must not be repaired – they must be replaced by a new original chain. If it is desired to lengthen the chain, it must be replaced by a new
and longer chain.
Replacement of the chain shall be performed professionally by an authorized repairer and the chain must meet the requirements stated in the
standard EN 818-7, Grade T from the following manufacturers: Chaineries Limousines, Pewag, Kito Chain, Retezarna or Rud.
Repairs
The lever hoist must not be modified. Repairs must be carried out by specialists. Damaged parts must only be replaced with original Powertex
spare parts. Order them through your dealer.
Checklist for periodic checks
Daily
Yearly
Inspection items
Labels
X
X
Rating plate
Function
X
X
Raising and lowering function
-
X
Raising and lowering function
X
X
Selector
X
X
Pulling through
Hooks
X
-
Hook opening
-
X
X
X
Deformation
X
X
Hook bearing
X
-
Wear, cracks, defor¬mation
-
X
and corrosion
X
X
Hook latches
Chain
X
-
Pitch
-
X
X
-
Wear
-
X
X
X
Deformation
X
X
Cracks etc.
X
X
Rust
Housing
X
X
Housing
-
X
Operating lever
-
X
Load chain sprocket
-
X
Bearings
-
X
Gears
X
X
Chain stop
Screws
X
X
Screws, nuts, rivets, cotters
etc.
Brake
-
X
Brake disk
-
X
Brake screw
-
X
Pawl and ratchet
(normally yearly – more frequently if necessary)
Inspection method
Visual
Test without load
Test with 125% of rated
load over a distance of min.
300 mm.
Operation
Operation
Visual
Measurement
Visual
Visual
Visuelt
Measurement
Visual
Visual
Measurement
Visual
Measurement
Visual
Visual
Visual
Visual
Visual
Visual after dismantling
Visual, testing
Visual after dismantling
Visual
Visual
Visual
Visual
Visual
Note
If the plate is hard to read - replace it
A low snapping noise should be audible
The lever runs easily. Load chain sprocket and chain
work well together Brake works. The chain does not twist
or tangle Hand pulling on the lever feels even
Easy to reset
Function
Looks normal
See Fig. 6 and Table 2
No visible deformation
No abnormal play
No visible damage
See Fig. 6 and Table 2
Works, spring undamaged
Looks normal. Measure in case of doubt.
See Fig. 7 and Table 3
Looks problem-free. Measure in case of doubt.
See Fig. 7 and Table 3
No deformation. Measure in case of doubt.
No cracks
No rust
No deformation and no rust
No deformation
No serious wear or cracks. No fractures or deformation
No damage, smooth running
No serious wear or fractures
Must be free of deformation
Must not be missing. Tighten loose items. Replace as
necessary
Replace if worn
No serious wear
Replace worn parts. Carefully lubricate with grease.
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