5. PREPARATION AND CHECKING BEFORE USE
5.1 Assembly of the electric chain hoist - Hook Suspension
ALWAYS make sure that the supporting structures and load-attaching device are strong enough to hold the weight of the
load and hoist.
(1) Attaching the chain container
Remark : For large Capacity hoists (7.5t and larger), refer to the ERML-9806-MC manual.
The chain container stores the load chain when a load is lifted. The installation procedure is as shown in Fig.5-
1,Fig.5-2 and Fig.5-3. Check that the stopper is properly attached to the 3rd link from the no load side end, and
also for 030C and 050L(D), attach the stopper to the 6th link from the load side end for the upper limit switch;
to the 8th link for the upper-lower limit switch. Feed the chain into the container from the free end, avoiding
twists and links. To avoid lumping and twisting, NEVER put all the chain into the container at once. Lumped
or twisted chain may activate the limit switch (in case of the hoist equipped with limit switch) and stop the
hoist during lowering.
Additionally, each chain container indicates the maximum length of the load chain stored in the container. It is
very dangerous to use a chain container with a storage capacity less than the length of the load chain, if all of
the necessary chain can not be stored in the container, and limit switch will not operate properly. Determine
the length of load chain and select a chain container with proper capacity.
Remark : For the relationship between chain length and chain container, refer to the periodic inspection tables
in 7.3.6 "Inspection procedure".
1. Plastic chain container
For B size
Hold the chain container and chain container spring against the hoist in the orientation shown in Fig.5-1,
and slide the socket bolt through all holes on the chain container, chain guide A and spring until
protruding on the other end.
For C,D size
Hook the chain container suspender on the spring pin on the no load side of chain guide A.
Turn the chain container suspender until fitting inside the opening on chain container P as shown in
Fig.5-2, and press upward until fitting snugly against the upper inside surface of chain container P as
shown in the figure.
Slide the socket bolt through the hole on chain container P and tightly lock on the other end with the
lever nut.
Note : Make sure the socket bolt passes underneath the chain container suspender and securely locks both
chain container P and the chain container suspender in place.
Hold the chain container spring over the chain container P, caring about the direction of the
spring, and put the plain washers on both side of the spring and lock on the chain guide A with the
socket bolt and the lever nuts.
− 10 −
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