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

Page: 52 / 72

powered by air!
Page 52
MAINTENANCE
REMOVING AND INSTALLING BOTTOM
BLOCK, CLAMP AND BUFFER
REMOVING AND INSTALLING BOTTOM BLOCK AND BUFFERS
- DUAL CHAIN HOIST (25 TI)
Illustration of a dual 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; loosen screw connections and remove the
end chain link pin for this purpose.
Note: For assembly, it is helpful to fasten a short assembly chain to
the end of the chain by means of an open chain link before pulling
the chain out of the bottom block. This assembly is pulled into the
bottom block as the chain is pulled out and remains there until
assembly is completed.
Pull out the chain from the bottom block. The buffers, buffer
discs and spacer are thereby pulled from the chain.
Assembly
Push the buffer discs in the correct alignment (edge encloses
buffer) and buffer onto the chain.
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. If no assembly
chains have been used, the end of the chain must be inserted
into the bottom block and pulled through by turning the
sprocket wheel using an auxiliary tool.
Push the spacer back onto the chain, so that it is
subsequently located in the chain between the bottom block
and chain mount on the hoist.
Align the bottom block chain and push the chain link pin
through the chain link to be attached (position of the weld
must align with that of the following links).
Fasten the screw connection and secure using
a new retaining washer to prevent it from becoming detached.