J. D. NEUHAUS PROFI 25TI, Original Operation And Assembly Instructions

Page: 54 / 72

powered by air!
Page 54
MAINTENANCE
- QUADRUPLE CHAIN HOIST (50 TI)
Illustration of a quadruple chain device
Removal
Move the bottom block as close as possible to the hoist body.
Position the bottom block securely in order to prevent the
chain from unravelling uncontrollably causing the bottom
block to fall.
Remove the bottom block end chain link from the chain mount
on the hoist body; remove the retaining plate and remove the
end chain link pin for this purpose.
Note: For subsequent assembly, it is helpful to work with three short
assembly chains which are fastened by means of an open chain link
to the hoist chain being pulled out during removal of the chain and
are pulled successively over the deflection sprocket of the centre
section and the bottom block. They remain there until assembly
is completed.
Pull the chain from the deflection sprocket of the centre
section and from the bottom block. The spacers, as well as
the buffer and buffer discs are thereby pulled from the chain.
Assembly
Push the buffer assembly in the correct alignment (buffer plus
buffer discs, edge encloses buffer) onto the chains.
Align the chain and fasten it to the assembly chain in the
bottom block by means of the open chain link.
Pull the chain through the bottom block and detach the
assembly chain and the open chain link from the chain.
Push the run-on element onto the chain.
Align the chain and pull through the centre section by means
of the assembly chain.
Detach the assembly chain and the open chain link from
the chain.
Push the first spacer onto the chain.
Align the chain and pull through the bottom block by means of
the assembly chain.
Detach the assembly chain and the open chain link from the
chain.
If no assembly chains have been used, the end of the chain
must be inserted into both the bottom block and the centre
section and pulled through by turning the deflection sprockets
using an auxiliary tool.
Align the chain and fasten the end chain link to the hoist body
by means of the end chain link pin. (Position of the weld must
align with that of the following links.)
Attach the retaining plate for the end link pin. The retaining
washers for securing the screws must always also be fitted.