User manual
HFB-BA-e-1212
33
  Eyelet  Hooks  Chain   
a  b 
Wear and tear 
(see grey fields) 
c  d 
Angle 
α
Wear and tear  
(see grey fields) 
Safety bracket 
No damage or corrosion 
(see grey fields) 
Date  Tester 
Max. admitted variation 
5 %  0 % 
No deformation 
or cracks 
10 
% 
5 % 
10 ° 
No deformation  
or cracks
Perfect working 
order 
Revision prior to first 
use 
24 months / 100 000 x 
27 months/ 112 500 x 
30 months/ 125 000 x 
33 months/ 137 500 x 
36 months/150000 x 
39 months /162 500 x 
42 months /175 000 x 
45 months /187 500 x 
48 months/200000 x 
51 months /212 500 x 
54 months /225 000 x 
57 months /237 500 x 
60 months/250000x 
 All load carrying parts have to be exchanged by a service partner authorised by KERN. 
bold letters = this maintenance work has to be carried out by a service partner authorized by KERN. 










