unicraft ESW 900 Operating Instructions Manual page 12

Care, maintenance and repair
Visual inspection and maintenance
Maintenance Maintenance tasks
intervals
before each Check wire rope hoist for damage
operation and wear, look particularly at the ca-
ble and check for deflection, stretch-
ing, fissures or corrosion.
Check the load and suspension
hooks for wear or loss of substance
from abrasion. If the wear exceeds
10% of the normal working level, the
hook must be replaced.
Check the switch for function and do
a visual inspection of the connection
cable.
following Clean the wire rope hoist thoroughly
each opera- and lubricate well. Oil the load hook
tion well.
every 40 Function check of the coupling.
hours
Clean it if necessary.
every 200 Check and measure the amount of
hours wear on the cable and load hook.
every 200 Check and measure the amount of
hours wear on the coupling.
as required Replacing the cable and the load
hook
as required Replacing the switch and connection
cable
as required Replacing the coupling
annually Safety check: If the wire rope hoist is
used commercially it must be in-
spected annually in compliance with
industrial safety regulations and the
inspection must be recorded as per
Section 10.
Checking the load cable for wear
The wire rope hoist is subjected to periodic mainte-
nance and supervision. In many cases is the procedure
of monitoring regulated in norms and directives (e.g.
DIN 15020 paper 2 ,, principles of wire rope hoist, moni-
toring and use").
The typical evaluation criteria described in norms with
regard the wire rope discard in case of e.g. wire break,
wire break nests, strand breakages, structural changes,
mechanical wear or corrosion can be assessed by ap-
propriate qualified specialists, which are trained in
maintenance and assessment of cranes.
12
Continuous monitoring of the hoist in compliance with
DIN 685 Part 5 and UVV BGV D8 Section 27 (VBG 8
Section 27) is a compulsory requirement. The load ca-
ble should be inspected before starting up and under
normal operating conditions after about 200 operating
hours or 10,000 load cycles, under heavy operating
conditions at shorter intervals.
Particular checks should be made on the links, espe-
cially contact points, for wear, deformation, wire breaks,
structural changes, corrosion and other damage.
The cable guide should be checked when changing the
cable and replaced if necessary.
ATTENTION!
Only use original spare parts of the manufacturer or
spare parts admitted by the manufacturer.
Fig. 5: Steel cable
Model
cable diameter [mm]
ESW 900
Ø 5,6
ESW 900 | Version 2.04