Connection; Electrical Connection; Load Chain - Tractel tralift TT Serie Manual De Instalación, De Utilización Y De Mantenimiento

completeness and the packaging disposed of in an environmentally sound
manner. It is recommended that the electric chain hoist is assembled and
connected on-site by our qualified customer service personnel.

3.2. Connection

3.2.1. Electrical connection

DANGER!
Electrotechnical adjustments may only be performed by authorised
specialists.
The mains connection cable, the mains connection fuse and the main
switch for connecting the electric chain hoist to the mains power supply
must be installed beforehand by the customer.
A 4-wire cable with a PE protective conductor is needed to provide the
power supply for three-phase models. A 3-wire cable with a protective
conductor is adequate for single-phase models. The length and cross-
EN
Figure 3-1

3.2.2. Load chain

CAUTION!
– Only use original chains.
– Welded seam of the chain links must face inward on the chain
wheel (see Figure 3-4).
– The gearbox limit switch must be mechanically disabled in order to
pull in the chain, see chapter 3.2.3.
Before start-up and during operation the load chain must be oiled along
its full length. Oil must constantly be present on the internal, contacting
and rubbing surfaces of the chain links. Lubrication is carried out by
submersion or with an oil can, using a creeping gear oil.
The end of the chain should be attached to a flexible piece of wire (1) and
fed through the chain wheel (2) of the electric chain hoist. Through short
switching impulses, the chain (3) will be housed correctly in accordance
with Figure 3-4.
The lifting height must be adjusted such that the hook fittings lie on the
ground in the lowest hook position.
8
Figure 3-2
L3
L2
L1
PE
section must be appropriate for the power consumption of the electric
chain hoist.
– Before connecting the electric chain hoist, check whether the operating
voltage and frequency that are specified on the name plate correspond
to the available power supply.
– Remove cover on electrical side.
– Insert connecting cable with M25 × 1.5 screwed cable connection into
hole at side and connect to terminals L1, L2, L3 and PE in accordance
with supplied circuit diagram (see Figure 3-1).
– Insert control cable with M20 × 1.5 screwed cable connection through
hole in underside of housing and connect to terminals 1, 2, 3, 4 and 10
(see Figure 3-2).
– Attach strain relief to housing (see Figure 3-3).
CAUTION!
The control switch must be attached to the strain relief cord and not
to the cable.
1
2 1 10 4 3
2
3
4
10
Figure 3-4
1 fall operation:
The load hook (1) is connected to the chain with a single fall hook clamp
(2). For the power transmission, the mounting of the bolt (3) is important
(see Figure 3-5).
CAUTION!
• Note correct arrangement of suspension (Mass k1, see Figure 3-6):
TT 250/500 = 41 mm.
• Grease the bearings thoroughly.
Figure 3-3
2
1
3