5.52.302.00.01.01
13
CAUTION!
When the dimension of hook opening width is deformed more than 10% or when the dimension of the hook
bottom thickness is fallen short of by 5% due to wear, the hook must be replaced.
11.4
Check of the pawl
A
Vmin
kg
mm
mm
250
14,5
13,8
500
14,5
13,8
11.5
Check of the brake system
Ratchet wheel with brake linings
D
Vmin
tn
tv min
kg
mm
mm
mm
mm
250
40
39
10,5
9,5
500
45
44
10
9
11.6
Check of suspension and load hook bolts
Suspension bolt
Load hook bolt
dn
dv min
dn
dv min
kg
mm
mm
mm
mm
250
8
7,4
5
4,6
500
10
9,2
6,5
6
12
Service
12.1
Load chain
Wear at the links is mainly due to insufficient maintenance of the chain.
To ensure optimal lubrication of the links, the chain must be lubricated at regular intervals, depending on
usage.
Lubricate the chain with oil that creeps.
Always lubricate the chain when it is not under load so that the oil can wet the links affected by wear. It is
not sufficient to lubricate the chain from the outside, as this will not ensure the formation of a lubricating
film within the links. The adjacent link points must always be lubricated to prevent excessive wear.
If the same lifting operations are carried out constantly, the switching area from a lifting to a lowering
movement must be given special attention.
Thoroughly effected lubrication of the chain will prolong the life of the chain by approx. 20 times,
compared to dry run with unlubricated chain.
Wash dirty chain with petroleum or a similar cleaner, under no circumstances heat the chain.
If there are environmental influences that foster wear, such as sand, a dry lubricant should be used, e.g.
graphite powder.
When lubricating the chain’s condition of wear should be checked.
