Gis GCH1000 Series, Instruction Manual, Page: 14 / 22

G I S C H A I N H O I S T S W I S S Q U A L I T Y 14
2.2.3 Limit switch The electric chain hoist is equipped with a gearbox limit switch as standard. This is also
suitable for normal limit switch operation with a high degree of accuracy. The operation
of the limit switches (highest and lowest hook position) must be checked during
start-up.
Three different transmissions are available that are adapted to the lift:
GCH 250/500
Transmission
Colour Single fall lift [m] Double fall lift [m]
i = 1:1 black 20 10
i = 1:3 yellow 60 30
i = 1:6 blue 120 60
GCH 1000
Transmission
Colour Single fall lift [m] Double fall lift [m]
i = 1:1 black 30 15
i = 1:3 yellow 80 40
i = 1:6 blue 180 90
GCH 1600/2000/2500
Transmission
Colour Single fall lift [m] Double fall lift [m]
i = 1:1 black 36 18
i = 1:3 yellow 110 55
i = 1:6 blue 220 110
Description of settings (see figure 2-12):

Before pulling in the chain or changing the chain, the gearbox limit switch must be
mechanically disabled by securing the rocker (1)

Pull in the chain

Move to highest hook position, rotate red ratchet wheel (front) (2) to switching cam
of top limit switch (3); (rotate clockwise for higher hook position and anticlockwise
for lower hook position)

Activate rocker, move to lowest hook position, rotate green switching wheel (rear)
(4) to switching cam of bottom limit switch (5); (rotate anticlockwise for higher hook
position and clockwise for lower hook position)

Activate rocker (must engage in switch wheel)

Check operation of limit switch; the end stop and the hook fittings must not touch
the housing
Figure 2-12
3
2
1
4
5