Prowinch PWJTHF, User Manual

Page: 38 / 51

Version 1.0 Version 1.0
Inspection & Maintenance
38
38
Items Inspection Method Standards Correction
Attrition and opening of the
hook
Visually check and with
vernier caliper tool
No remarkable opening or attrition
Load a b c d e g
0.3 -0.5 27 18 25 17 35 28
1 34 24 30 24 42 32
2 46 29 39 30 49 40
3 56 35 49 34 59 48
5 67 43 67 44 60 48
7.5 - 10 82 55 80 48 85 80
15 110 78 120 80 120 90
20 - 25 142 95 155 98 150 115
Deformation, damage and
corrosion
Visual check
No remarkable deformation, harmful damage and
corrosion
Replace hook
Hook safety block
Visual inspection, fold and
unfold actions
-Can exactly fold inside the hook
-No deformation
Dangerous
-Do not use hook if safety block is loosening
Improper use will lead to death or serious injury
Replace hook safety block
Hook movements
(rotate)
Visual inspection and man -
ual rotation
-No remarkable space between bottom supporting
and top
-equal at right and left
-easy to rotate 360°
Replace hook
a
c
b
d
g
e
V.07.22 [LA]