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Characteristics and Dimensions of URREA Manual Chain Hoists
Code
Load
No. of
Capacity
Load Chain
Falls
kg
46300
500
1
46301
1 000
1
46302
2 000
1
46303
3 200
2
46305
5 000
2
46306
6 300
2
46308
8 000
3
46310
10 000
3
MAINTENANCE,
CONSERVATION AND REPAIR
All repair, conservation, mintenance or conver-
sion work must be carried out by specifically
trained operators.
5.1. Lubrication
The load chain requires permanent lubrication,
using a fluid oil to this avail; it must never be
dry. The lubrication, points of the chain hoists
are located on the axis of the sheaves of the
pulley wheel, and they have external greasing
points to this avail.
The chain hoist must be regulary checked and
inspected in order to avoid damage, determine
the same, corrosions, etc., in order to guarantee
safe operation.
5.2. Plan of inspection and maintenance
1. Check that brake is working correctly:
Operate the control chain of the chain hoist
with loada in order UP; the chain hoist must
make a "clicking" noise.
When the control chain is not operated, check
that load is maintained in its position.
Should the load descend lightly, it probably has
oil in the ratchet-wheel brake. When the chain
is operated in order to DOWN, the chain hoist
must lower the load gently without making a
noise.
2. State of the loading hook: Check that the
loading hook is in food condition and without
cracks, dents or grooves, permanent deforma-
tion, severe corrosion or wear. Check that safety
Approximate Weight
Load Chain
Load
Safety Fac-
Chain 0 x
tory
pitch
mm
6 : 1
5 x 15
6 : 1
7 x 21
4 : 1
8 x 24
5 : 1
8 x 24
5 : 1
10 x 28
6 : 1
13 x 36
7 : 1
13 x 36
6 : 1
13 x 36
Hard Chain
with 3m
Hook
Effort to Lift
Suspension
Full Load
kg
kg
8
21
13
26
18
38
29
32
45
40
75
48
110
42
120
50
latch is assembled on the hook and that it clo-
ses correctly.
3. Check up and characteristics of the chains.
Standard UNE-58-523-88 establishes the check-
ups to be carried out on the chain and diffe-
rentiates two types of inspection:
3.1. Frequent or visual inspection: This will be
carried out every month, and it is not neces-
sary to record the results. First examine the
chain throughout its useful length in order ro
detect signs of wear, deformation or external
damage. Then operate equipment with out a
load wich is a near as possible to rated load
of service in the two directions, observing the
performance of the chain and the wheel. The
chain must gently go through the load sheave
in both directions and in each case.
3.2. Periodic or complete ispection: These will
be carried out on a yearly basis, and measures
and external conditions must be recorded in
order that they are used as a base for a conti-
nous evaluation.
For their inspection, chains must be cleaned
with any method that does not produce da-
mages. Methods to be avoided are those that
could cause damages on the chain (such as, for
example, inmersion in acid or primary bath) or
those that conceal cracks or other superficial
defects.
In order to check increase of length or elon-
gation of the chain, together with wear in the
contact areas with adjacent links, follow these
instructions:
a) Maintaining the chain taught over a flat
base, measure the length of the chain over 11
E N G L I S H •
U s er 's M an u al
Dimensions
Development
per m of Lift
A
mm
kg
mm
31
260
130
50
310
160
66
380
180
132
520
260
160
640
290
175
730
380
264
870
440
264
900
440
B
C
mm
230
260
280
280
300
320
320
320
15
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