Advertisement
Available languages
Available languages
4) The hoist is fitted with a safety device that stops the motor at
the ascent limit position. However, it is preferable to avoid the
activation of the limit switch and simply release the relative
pushbutton to stop ascent.
On completion of testing, compile the test report with the date,
installation check data and signature as well as any relevant
comments (Table 2).
When operation is resumed after prolonged periods of disuse
the entire machine must be tested under no-load conditions
(according to instructions in point 2) before starting.
In the case of new installation, repeat all test operations
(2 - no-load, and 3 - load) listed above.
6. RECOMMENDATIONS AND SAFETY PRECAUTIONS
1) Never lift loads exceeding specified hoist capacity.
2) Ensure that the load is securely attached to the lifting
hook.
3) Ensure that no parts fall from the load during lifting
operations.
4) Keep hands and other parts of the body well clear of
the drum during operation to avoid the risk of entrapment
with rope and consequent physical injury.
5) Keep hands and other parts of the body well clear of
the counterweight to avoid entrapment between the
counterweight and limit switch lever.
6) Avoid use of the hoist in adverse weather conditions
(strong winds or storms) as the load is not guided in this
system.
7) The control position and lighting conditions must
ensure perfect visibility of the load throughout the lif-
ting phase.
8) Ensure that at least three turns of rope remain wound
on the drum to avoid excessive pull on the rope attachment
point.
Avoid reverse winding on the drum; rope descent provokes
failure of limit switch activation on contact with the counterweight
(ref.8, fig.1) which can damage the hoist. If this occurs, check
the hoist for damage and rewind the cable correctly.
- Ensure that all protective devices are correctly fitted.
- During operation, check that wire rope winds onto the
drum correctly, one winding on another, without slack
turns or overlapping which can damage the rope. If this
occurs, unwind the rope and rewind correctly taking care
to maintain sufficient tension.
- Keep children away from the hoist.
- Ensure that no unauthorised personnel have access to
the hoist
- Lifting operations that are not carried out
correspondence to the load s centre of gravity and the
rope pull line are strictly forbidden.
- Never pull the pendant control cable to rotate the hoist
on the bracket. Rotation must only be carried out
manually from the frame.
7. CHECKS AND MAINTENANCE
WARNING: Always remove the load from the hoist and
disconnect from the power supply before carrying out
maintenance operations.
- Repairs must be carried out exclusively by qualified personnel
or in IMER service centres.
- Use only original spare parts.
- Ensure braking efficiency every 6-7 days.
- Ensure that all signs and symbols on the machine remain
legible
- Clean the hoist regularly.
- Check limit switch efficiency regularly.
- Before using the machine, check the mains cable for
any possible damage which could constitute a hazard to
operation and the hoist.
7.1 WIRE ROPE
Only use new wire ropes which comply with the following
IMER INTERNATIONAL S.p.A.
ES 150 (110V/50Hz)
specifications and are accompanied by a declaration of conformity
and identification documentation.
O.D.
Construction
Strand twist
Strand resistance
Min. rope breaking load
Length
Surface treatment
The IMER reference code is indicated in the spare parts list.
Replacement must be carried out by qualified personnel.
Unwind the rope completely.
Pull the rope with clamp out of the hole and slot on the drum. To
fit the new rope with hook, thimble and pressed sleeve, pass the
free end of the rope through the counterweight and insert it into
the hole and then out of slot on the drum; tighten the clamp and
push the rope end back inside the drum by means of the slot. Pull
the rope and wind onto the drum in the correct direction, wind on
wind in consecutive layers. Ensure ascent limit switch efficiency.
Inspect the condition of the rope daily or in the event of
faulty operation (twisting, bending, kinks or abrasion)
Replace the rope in the event of defects as indicated in fig.13.
Carry out rope checks quarterly; check in particular the rope
ends and note conditions in the relative table in the manual
(table 2) which must be kept by the site foreman.
Replace the rope at least once a year.
The hoist is fitted with a mechanical disk brake which is engaged
in the event of failure of power supply to the electromagnetic
release device.
If braking efficiency is reduced, contact a qualified technician to
carry out maintenance.
Warning: Always remove the load from the hoist and
disconnect power supply before carrying out hoist
maintenance.
Remove fan cover (A) and adjust air gap (d) between magnet
(B) and brake disk (C) by means of a feeler gauge: the air gap
must be 0.4 mm.
Measure the air gap at three different points; slide the feeler
gauge backwards and forwards in each point to ensure brake
disk alignment.
in
If the air gap exceeds the above value, reduce by tightening nut
(D) by means of a hex wrench, slacken if the gap is too small.
Measure the new distance several times (d).
Once adjustment is complete, refit cover (A).
Check braking efficiency by engaging brake several times during
hoist operation under load conditions.
Ensure that there are no oil leaks from the gearmotor. Oil leaks
may indicate that the aluminium housing is damaged. In this case,
seal immediately or replace housing.
- Check the gearmotor oil level regularly before
operation by means of the level plug. Top up if necessary.
Oil change is scheduled for every 2000 hours of service.
Use gear oil viscosity ISO VG 460 at 40°C.
- Contaminated oil is considered special waste and must
be disposed of in accordance with provisions as specified
in the country of installation.
Ensure that the pendant control insulation is in perfect condition;
in the event of damage, only use gennine IMER spares.
- 7 -
5 mm
133 strands (19x7) kink-proof
r.h. cross
1960 N/mm²
16.07 kN
26m
Greased
7.1.1. WIRE ROPE REPLACEMENT
7.1.2. PERIODIC CHECKS
7.2 MOTOR BRAKE ADJUSTMENT
7.3 GEARMOTOR LUBRICATION
7.4 ELECTRICAL INSTALLATION
Advertisement
