4
Assembly
■Trolley Width Adjustment
The Twin Hook Electric Chain Hoist (TWER2M) was pre-adjusted at the time of shipment to the beam width of the
customer on site. Depending on installation and space conditions, when it needs to disassemble and assemble the
trolley upon rearrangement or maintenance of the trolly frame, please refer to the section of "Combination with the
Trolley" in the ER2 Series Electric Chain Hoist (250kg to 5t) Owner's Manual (separate volume).
■
Adjusting the Height of Bottom Hook
Do not adjust the height of the bottom hook beyond the threaded range visible from the check
•
hole.
Failure to follow this precaution may cause serious accidents leading to serious or even fatal injury.
DANGER
PROHIBITED
COMPULSORY
Fasten nuts with the specified torque.
•
Replace with a new split pin and be sure to insert and bend it.
•
Failure to follow these precautions may cause serious accidents leading to serious or even fatal injury.
CAUTION
After installation, adjust the height of the bottom hook under no load.
•
Failure to follow this precaution may cause serious injury or property damage.
COMPULSORY
Load chain
Chain pin
Screw fitting
Nut
Spring washer
Check hole
Connection fixture
●Single-chain Type
1) Measure the difference between heights of bottom hook 1 and
bottom hook 2 with the load suspended.
2) Remove the load and then loosen the nut.
3) Turn the screw fitting to adjust the height of the hook (within
the threaded range visible from the check hole).
4) Fasten the nut to fix the screw fitting (Torque: M16 - 164Nm,
M20 - 329Nm, M24 - 570Nm).
Chain pin
Load chain
Screw fitting
Nut
Spring washer
Check hole
Connection fixture
●Double-chain Type
1) Measure the difference between heights of bottom hook 1 and
bottom hook 2 with the load suspended.
2) Remove the load and the chain pin.
3) Loosen the nut and then adjust the screw fitting by a length
twice the measured within the threaded range visible from the
check hole.
4) Fasten the nut to fix the screw fitting (Torque: M16 - 164Nm,
M20 - 329Nm, M24 - 570Nm).
5) Make sure that the load chain is not twisted. Insert the chain
pin so that its head is oriented as shown in the left picture,
and insert a new split pin to fix it.
