Testing And Maintenance - IMER ET 300 Operating, Maintenance, Spare Parts Manual

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UP limit switch operation, correct rope winding onto the drum and
motor brake operation.
3) Load test. Load the winch with its maximum admissible load. Run
a complete up/down cycle to test the stability of the supports, gantry
and the motor brake.
After the test, check the support structure for failure and slippage
and recheck the drum level.
4) The winch is fitted with a safety device which stops travel at the
UP limit position (ref.9, fig.1).
Do not depend on this safety to stop the winch; release the control
button to stop the winch instead.
5) On remote control versions, the down limit switch activates to shut
down the winch and prevent reverse winding of the rope on the drum
during descent.
IMPORTANT! Down limit switch activation can occur either
due to incorrect working height or due to other problems
which may prejudice correct hoist functioning. After the
limit switch has been activated, the hoist installation and
components must be checked (rope, drum etc.).
On direct control versions, the operator is responsible for avoiding
the above risk.
On completion of testing, compile the test report with the date,
installation check data and signature as well as any other comments
(Tab. 2).
In case of new installations and after every service, repeat
the no-load (2) and load (3) tests described above.
6. SAFETY WARNINGS AND OPERATING PRECAUTIONS
1) Do not lift weights exceeding the hoist s capacity.
2) Do not allow anyone to stand underneath suspended
loads.
3) Do not attempt to raise loads that are anchored to the
ground (e.g. buried posts, plinths, etc.).
4) Make sure that the load is correctly attached to the hook
on the hoist and always close the safety catch (fig. 4.1, 6).
5) If the load requires the attachment of accessories (belts,
ropes, slings, etc.), these must be of a certified and
approved type. The maximum capacity must be reduced
by the weight of these accessories.
6) Make sure that no part of the load comes detached during
lifting.
7) Make sure that the load rests firmly on the ground before
releasing it from the hook.
8) Do not release a suspended load using accessories that
permit instantaneous release or by cutting the sling.
9) Keep hands and other parts of the body well clear of the
drum during operation to avoid the risk of them getting
caught in the winding rope and causing serious injury.
10) Keep hands and other parts of the body well clear of
the counterweight during lifting to avoid the risk of crushing
against the stop lever.
11) Do not use the machine in adverse weather conditions
(strong wind or storms) as the load is not guided.
12) The control position and lighting conditions must
ensure complete visibility of the load during its entire travel.
13) Check that all guards are in place.
14) During operation check that the rope winds on correctly,
one turn at a time, without slack or overlay which might
damage it. If not, unwind it and rewind it correctly under
tension.
15) Make sure that the lifting run is free from obstacles
and make sure that no one can lean out from intermediate
floors.
16) Cordon off the ground loading area to prevent anyone
from entering during lifting.
17) Keep children away from the hoist.
18) Do not allow unauthorised persons access to the hoist
while it is not being used.
19) The hoist must not be used for pulling loads obliquely
(more than 5° away from vertical).
IMER INTERNATIONAL S.p.A.
ET 300
When operation is resumed after a lengthy period of disuse the
entire machine must be tested under no-load conditions before
starting, as described above (point 2, CHAPT.5).
7. GANTRY SUPPORT: INSTALLATION AND USE (Fig. 8)
The gantry comprises two Ø 48 mm tubular supports and an NPU 65
rail on which the winch wheels slide.
The gantry features a facility for counterweight ballasts comprising
two enclosures (C) with padlock closure, a base unit (D) (height 30
cm) to be fixed by means of brackets and screws, 2 connecting
beams (E), damper end stop (A) and winch fixing bracket (B) with
end stop.
7.1 INSTALLATION
On completion of assembly as shown in figure 8, anchor the ballasts
Fill the containers with sand each to at least 150 kg.
The specified ballast weights are obtained by means of specific
materials whose specific density does not exceed 1300 kg/m
To avoid tampering with ballasts, the containers must be closed with
lids and padlocked.
Never use makeshift systems such as bags of cement or bricks
simply placed on the gantry frame as these cannot be sufficiently
anchored to the frame.
- Always ensure complete efficiency of the ballasts before using the
Remove the winch from the gantry rails before disassembling the
gantry and emptying the ballasts.
Repairs must be done by qualified personnel or by IMER Technical
Service.
- Use only IMER original spare parts.
- Check the motor brake every 6/7 days.
- Ensure that the notices and inscriptions on the machine are
prominently displayed and legible.
- Keep the machine clean.
- Check the operation of the UP limit switch (UP and DOWN position
limit switches on remote control versions) at the start of every work
Lubricate the rail guide wheels at least once a month.
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20) Do not pull the winch on the gantry rails by means
of the electric cables; use the steel handle bar on the
winch frame for this purpose.
21) Do not leave a suspended load unattended. Raise
or lower it and unload it.
22) When a load is to be raised or lowered, this must
be done in such a way as to minimise dangerous
sideways and vertical movements.
23) Do not allow the load to start to spin while it is
being raised or lowered as this could cause the rope
to break.
24) Before leaving the hoist unattended, remove the
load, completely wind the rope onto the drum and
disconnect the electric power plug.
25) On t he remote control version, the pendant
control cable must be secured
structures, in order to prevent its breaking.
as follows:
Position the ballast containers on the ground.
dry sand).
The use of liquids is expressly prohibited.
winch; check for any damage that may affect operation.
Do not fit the winch onto the gantry before fitting the
ballasts.

8. TESTING AND MAINTENANCE

Warning! Only carry out maintenance with the machine
switched off, unloaded and disconnected from the
mains.
shift.
Check the electrical cable at the start of every work
cycle for accidental damage.
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to the building
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