Operation; Automatic Rolling Mechanism - AL-KO 450 A Manual De Instrucciones

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CAUTION!
Risk of accident!
The breaking force of the stitched strap
must be at least 7 times the specified ten-
sile force in the lowest cable position.
ADVICE
The following must be observed during
strap installation: – always turn the crank
handle in the "LIFT" direction!
Installing the strap
1. Release the locking lever (Fig. 4-1) and turn
the rope drum to the correct position.
2. Feed the AL-KO connector through the strap
loop (Fig. 5-1) and secure with a washer, ser-
rated lock washer and screw (Fig. 5-2).
3. Lock the locking lever and remove the crank
handle.
4. Wind the strap in two full turns and mark the
strap run-out in colour.
Fastening the winch
Type Fastening materi-
als
3
screws
450 A
3
900 A
∅10.5
125A
Guide pulleys
The minimum diameter of the guide pulleys must
be 12 times the diameter of the rope.
Example:
Rope thickness ∅ 7 mm
Guide pulley ∅ 84 mm

OPERATION

CAUTION!
Danger of brake release!
The load pressure brake can release due
to vibration.
The cable winch should not be used to
secure loads!
Danger of fatal injury! Never stand under sus-
pended loads!
Risk of accidents! The brake system can over-
heat during extended lowering of loads. No
continuous operation!
12
Torque
M10-8.8
49 Nm
washers
DIN
Maximum lowering duration 2 - 5 minutes
depending on the load.
Check braking function of the cable winch.
There must be a clicking sound when turning
in the "lifting" direction!
Check to ensure the crank is engaged.
Check the rope / strap for damage and re-
place if necessary.
The rope / strap should not be run over sharp
edges.
When winding up the rope / strap without a
load, keep it under a slight tension. For proper
braking function, a minimum load of 25 kg
is required.
Only wind up a rope / strap under load to the
point that there is an overhang on the flanged
wheels of at least 1.5x the rope diameter (sec-
tion 8).
Deflection angle
ADVICE
The deflection angle when winding the
rope in or out must not exceed 4° (6-1).
Winch operation
Lifting/pulling a load
1. Turn the crank handle clockwise.
Holding a load
1. Release the crank handle.
The load is held in its current position.
Lowering a load
1. Turn the crank handle anticlockwise.
The built-in brake stops the crank handle
from flying back.

AUTOMATIC ROLLING MECHANISM

ADVICE
The automatic rolling mechanism can
only be actuated if the winch is without
a load.
Actuating the automatic rolling mechanism
1. Pull back the locking sleeve (Fig. 1-2).
2. Remove the crank handle.
3. Press the locking lever and turn it to the left
(Fig. 2-1).
The rope/strap can be unwound (Fig. 7).
Locking the automatic rolling mechanism
1. Press the locking lever and turn it to the right.
2. Pull back the locking sleeve.
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