4
5
Daily
Yearly
Inspection items
Inspection method
Note
Labels
X
X
Rating plate
Visual
If the plate is hard to read - replace it
Function
X
X
Raising and lowering function
Test without load
A low snapping noise should be audible
-
X
Raising and lowering function
Test with 125% of rated
load over a distance of min.
300 mm.
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
X
X
Selector
Operation
Easy to reset
X
X
Pulling through
Operation
Function
Hooks
X
-
-
X
Hook opening
Visual
Measurement
Looks normal
See Fig. 6 and Table 2
X
X
Deformation
Visual
No visible deformation
X
X
Hook bearing
Visual
No abnormal play
X
-
-
X
Wear, cracks, defor¬mation
and corrosion
Visuelt
Measurement
No visible damage
See Fig. 6 and Table 2
X
X
Hook latches
Visual
Works, spring undamaged
Chain
X
-
-
X
Pitch
Visual
Measurement
Looks normal. Measure in case of doubt.
See Fig. 7 and Table 3
X
-
-
X
Wear
Visual
Measurement
Looks problem-free. Measure in case of doubt.
See Fig. 7 and Table 3
X
X
Deformation
Visual
No deformation. Measure in case of doubt.
X
X
Cracks etc.
Visual
No cracks
X
X
Rust
Visual
No rust
Housing
X
X
Housing
Visual
No deformation and no rust
-
X
Operating lever
Visual
No deformation
-
X
Load chain sprocket
Visual after dismantling
No serious wear or cracks. No fractures or deformation
-
X
Bearings
Visual, testing
No damage, smooth running
-
X
Gears
Visual after dismantling
No serious wear or fractures
X
X
Chain stop
Visual
Must be free of deformation
Screws
X
X
Screws, nuts, rivets, cotters
etc.
Visual
Must not be missing. Tighten loose items. Replace as
necessary
Brake
-
X
Brake disk
Visual
Replace if worn
-
X
Brake screw
Visual
No serious wear
-
X
Pawl and ratchet
Visual
Replace worn parts. Carefully lubricate with grease.
Checklist for periodic checks
(normally yearly – more frequently if necessary)
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, Thiele 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.
