misia XM SERIES, Installation, Operation And Maintenance Manual

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ELECTRIC WIRE ROPE HOIST
XM SERIES
4. OPERATION AND MAINTENANCE INSTRUCTIONS
4.9.4 LIFTING HOIST GEARBOX
TYPE XM 308÷525
(see figure on page 60 "motor removal")
Removal: fit wooden wedges like for motor removal,
on the gearbox side, loosen the screws pos. 2, pull out
the gearbox balancing it with sling bands.
Installation: proceed as described in section 4.9.3.
(hoist motor installation), first pacing the motor side
half-coupling (pos. 4), then the relevant intermediate
shaft and inserting the gearbox until reaching of the
proper position, then tighten all the screws (pos. 2).
Never use the fastening screws to approach
the gearbox to the case, since this could
damage the couplings and the relevant stop
rings. Install and tighten the fastening screw
(pos. 2) only after proper positioning of the
gearbox into the seat of the case.
Whenever possible we recommend to
remove and install the gearbox with the
hoist on the floor in a vertical position to
facilitate the procedure.
To remove the gearbox of hoist 740÷1125
that is inside the drum, we recommend you
send the hoist to the manufacturer.
4.9.5 ROPE
Before fitting a new rope, it is necessary to check the
pulley grooves and the drum thread for wear or bends
due to winding of the old rope. If necessary, replace
the damaged parts. Wind-off the new rope coil, without
twisting it, so as not to cause bends.
To remove the rope guide proceed as follow:
Loosen the screws pos. 1 (Fig. 1), detach the
rope guide slide pos. 2 (Fig. 1), remove the
rope clamp spring (Fig. 2), pull out the rope
guide ring from the drum (Fig. 3).
The removal of the rope guide of the hoist type
308÷525 with SX thread is shown in figure,
whereas for hoist type 740÷1125 it is mirror-
inverted in respect to the illustration with DX
thread.
Rope removal: pull out the wedge (Fig. 4), then
extract the rope end from the socket and pull out
the rope from the lower block pulleys and the
deflection pulley, if any. Fully unwind the rope
from the drum by pressing the "down" button on
the keypad, until the end of the drum. Loosen
the fastening screws of the rope clamps (Fig. 5).
WRONG RIGHT
Fig. 1
Fig. 2
Fig. 3
Wedge
Fig. 4
This step, if performed as above described,
requires special experience and therefore
only skilled technicians can be entrusted
with it.
Whenever possible we recommend to
install the motor with the hoist on the floor
in vertical position.