unicraft EKZT Series Operating Instructions Manual page 13

Step 1: Lubricate all moving parts of the chain hoist
(gearbox, bearings) with high-quality grease.
Oil the chain well
Step 2: Check the chain hoist for external damage be-
fore each use.
Step 3: Make sure that all safety instructions on the
chain hoist are clearly legible.
Visual inspection and maintenance
main- maintenance work
tenance-
intervall
before every Check the chain hoist for damage
use and wear, especially the chain links
for bending, stretching, cracks and
corrosion
Check brake for damage and wear.
Clean brake disc if necessary, re-
place if heavily worn.
Check the load hook and carrying
hook for wear or loss of substance by
grinding. If the wear exceeds 10% of
normal on delivery, the hook must be
replaced.
after each Thoroughly clean the chain hoist and
use lubricate well. Lubricate the load
chain and the load hook and carrying
hook well.
40 hours Lubricate transmission and bearings
well.
40 hours Function check of the brake
40 hours Cleaning the brake disc
200 hours Wear test and wear measurement of
the brake disc
200 hours Wear test and wear measurement of
the chain links and the load and car-
rying hook
upon need Replacement of the brake disc
upon need Replacement of the chain links and
the load and carrying hook.
yearly Safety check: If the chain hoist is
used in companies, it must be tested
annually according to the German In-
dustrial Safety Ordinance and the test
must be documented in accordance
with § 10.
EKZT-Series | Version 1.04
Care, maintenance and overhaul
Control of the brake system:
ATTENTION!
Check the brake system regularly!
Brake tests are to be carried out as follows:
Step 1: Attach load
Step 2: Lifting the load
Step 3: Raise and lower load at different heights
Step 4: Test whether it is possible to hold the load in any
position
ATTENTION!
The brake discs must be replaced if the disc thick-
ness is reduced by 10% or more, or if it is no longer
possible to maintain the load in any position.
The replacement of the brake disc may only be car-
ried out by the customer service.
Checking the load chain for wear
Continuous monitoring of the load chain is a mandatory
requirement in accordance with DIN 685 Part 5 or UVV
DGUV regulation 54 (BGV D8 § 27 (VBG 8 § 27).) The
load chain must be started after commissioning and un-
der normal operating conditions after approx. 10,000
load cycles, to be tested at shorter intervals in severe
conditions.
The links, especially at the points of contact, are to be
checked for wear, cracking, deformation and other da-
mage.
The chain is to be renewed at:
- Reduction of the nominal thickness at the points of
contact by 10% or, if worn to the limit value in the
table Fig. 5.
- Elongation of a limb by 10% or of the chain over 11
limbs by 4% or, when stretched to the limit value in
the table Fig. 5.
- rigid-drawn chain links
When changing the chain, check the chain guide and re-
place if necessary.
ATTENTION!
As spare chain use only original spare chain from the
manufacturer of the hoist.
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