5.3 Installing New Load Chain
1) Remove old load chain if necessary (the
chain can be cut if desired).
a) Load chains and hand chains should
be kept clean and free from any
coating or deposit that will build up and
change their dimensions or reduce
flexibility. The cleaning process shall
not damage these chains and any
solution used in the cleaning process
shall be acid free.
To remove chain from the chain shaft
(dead end):
i) Remove either cotter pin from the
chain shaft (page 20 to page 26 ).
ii) Slide the shaft out of the way.
iii) Remove the chain; cut old load
chain into small lenghts and discard
appropriately.
For hoists with more than one fall:
b) Load chains articulate slowly under
high bearing pressures and should be
lubricated as specified by the hoist
manufacturer. Hand chains are light
loaded and normally need little or
lubrication; how ever, the hoist manual
should be reviewed for specific
lubrication information.
To remove chain from the suspension
plate (dead end):
i) Remove the nut and bolt from the
suspension plate (page 20 to
page 26 ).
ii) Remove the chain and dispose of
properly.
2) Cut a new load chain to the correct length.
The length of chain required is equal to
the desired lift times the number of falls
the hoist requires.
3) Remove the handwheel cover as
described on page 14.
4) Attach approximately 2 feet (1 m) of soft
wire to one end of the new load chain.
5) Insert the wire into the entry side of the
hoist, over the load sprocket, and through
the inside of the guide roller.
6) Position the load chain so the welds are
directed away from the chain sprocket.
7) Remove the wire and pull the hand chain
in the hoisting direction until about
6 inches (15 cm) of load chain have
emerged.
8) Continue turning the handwheel clockwise
until only a couple of feet (1 m) of load
chain are left on the dead end.
9) While avoiding any twisting, secure the
dead end of the chain to the chain shaft or
suspension plate by:
a) Removing the cotter pin.
b) Slide the shaft out of the way.
c) Insert the last link of chain.
d) Slide the shaft through the last link.
e) Replace cotter pin.
10) Install the chain stop approximately 3 links
from the dead end (new style hoists have
a fixed chain stop).
11) Turn the handwheel counterclockwise until
a couple of feet (1 m) of the dead end are
available.
12) Install the hook
as described in the
following section.
13) Continue to turn the handwheel counter
clockwise until the hook is almost
completely hoisted.
14) Check for any twisting of the chain.
15) Ensure that the pawls on the side plate
(under the handwheel) are engaged
correctly (see Figure 16 on page 17).
16) Restall the handwheel cover.
15
C-Link
ONLY USE CHAIN THAT IS
RECOMMENDED OR SUPPLIED
BY TRACTEL INC./LTD
Figure 10
WARNING
Содержание tralift 19709
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