unicraft ESW Series Operating Instructions Manual page 13

Maintenance schedule
If an increase in wear is noted during regular inspections,
the maintenance intervals should be decreased in ac-
cordance with the actual signs of wear. Contact the man-
ufacturer for further information concerning maintenance
tasks and intervals. Please find the contact data on
chapter 1.2 Customer service.
Step 1: Lubricate all moving parts of the electrical cable
winch (gears, bearings) with good quality
grease.
ATTENTION!
The steel rope must not be lubricated or oiled!
Step 2: Check the electrical cable winch for external da-
mage before each use.
Step 3: Ensure that all safety instructions on the electri-
cal cable winch are clearly legible.
Visual inspection
Mainte- Maintenance tasks
nance
intervals
before each Check wire rope hoist for damage and
operation wear, look particularly at the cable and
check for deflection, stretching, fissu-
res or corrosion. If damaged, replace
the rope.
Check brake for damage and wear.
Clean the brake disc (63, Fig. 10) if
necessary and have it replaced in
case of heavy wear.
Check the hook for wear or loss of sub-
stance by grinding. If the wear exceeds
10% of the normal size on delivery, the
hook must be replaced.
Check that the retaining screws and
the mounting bracket are firmly seated
on the carrier.
following Clean the electrical cable winch thoro-
each ope- ughly and lubricate well. Oil the load
ration hook well.
every 40 Function check of the brake (Load
hours test)
every 200 Wear test and wear measurement of
hours the brake disc
every 200 Wear test of the rope. Wear test and
hours wear measurement of the load hook
as required Replacement of the brake disc
ESW-Series | Version 1.08
Care, Maintenance and Repair
Mainte- Maintenance tasks
nance
intervals
as required Replacement of steel cable and load
hook
annually Safety inspection: If the electrical ca-
ble winch is used in a company, it must
be inspected annually in accordance
with the Industrial Safety Regulation
and documented in accordance with §
10.
Checking the load cable for wear
The electrical cable winch is subjected to periodic main-
tenance and supervision. In many cases is the proce-
dure of monitoring regulated in norms and directives
(e.g. DIN 15020 paper 2 ,, principles of Electrical Cable
Winch, monitoring and use").
The typical evaluation criteria described in norms with re-
gard the wire rope discard in case of e.g. wire break, wire
break nests, strand breakages, structural changes, me-
chanical wear or corrosion can be assessed by appropri-
ate qualified specialists, which are trained in mainte-
nance and assessment of cranes.
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 cable
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. 8: Steel cable
13