k2
k1
(Dwg. MHP3322)
n
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
Single Fall Lift
Double Fall Lift
ft (m)
ft (m)
i = 1:1
Black
66 (20)
33 (10)
i = 1:3
Yellow
198 (60)
99 (30)
i = 1:6
Blue
396 (120)
198 (60)
QCH100
i = 1:1
Black
100 (30)
50 (15)
i = 1:3
Yellow
260 (80)
130 (40)
i = 1:6
Blue
600 (180)
300 (90)
QCH200/300/500
i = 1:1
Black
118 (36)
59 (18)
i = 1:3
Yellow
360 (110)
180 (55)
i = 1:6
Blue
720 (220)
360 (110)
n
Description of settings
(Refer to Dwg. MHP3323 on page 7).
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).
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. Keep a minimum of 12 chain links from the housing.
4
5
3
1
2
(Dwg. MHP3323)
n
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.
DANGER
•
All steel plate chain containers must be equipped with an additional wire
cable with a minimum diameter of 2 mm (Refer to
Old Style
(Dwg. MHP3324)
Form 04585147 Edition 6
7
Содержание QCH Series
Страница 12: ...www ingersollrandproducts com...
