Limit Switch - Ingersoll-Rand Quantum QCH Series Product Information

Limit Switch

The electric chain hoist is equipped with a geared 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:
QCH50
Transmission Color
i = 1:1 Black
i = 1:3 Yellow
i = 1:6 Blue
QCH100
i = 1:1 Black
i = 1:3 Yellow
i = 1:6 Blue
QCH200/300/500
i = 1:1 Black
i = 1:3 Yellow
i = 1:6 Blue
Description of settings (see figure 8):
1
2
4
5
(Figure 8)
1. Before installing the chain or changing the chain, the limit
switch must be mechanically disabled by securing the
rocker (1).
2. Install the chain.
3. 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).
04585147_ed2
Single Fall Double Fall
Lift Lift
ft (m) ft (m)
66 (20) 33 (10)
198 (60) 99 (30)
396 (120) 198 (60)
100 (30) 50 (15)
260 (80) 130 (40)
600 (180) 300 (90)
118 (36) 59 (18)
360 (110) 180 (55)
720 (220) 360 (110)
3
4. 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).
5. Activate rocker (must engage in switch wheel).
6. Check operation of limit switch; the end stop and the hook
fittings must not touch the housing.
Chain Bucket
1. Move chain out at load side until limit switch is activated.
Attach free end of chain at housing.
2. Attach chain bucket and allow chain to run in.
• All steel plate chain containers must be equipped with
an additional wire cable with a minimum diameter of
2 mm (see figure 9).
(Figure 9)
DANGER
7