Ma in t e nan c e | Exch a ng i ng t h e c h ain a nd c h ai n s p r o ck e t
45
EXCHANGING THE CHAIN AND
CHAIN SPROCKET
If the chain exhibits signs of wear or is too stretched
from operation (see “Checking the condition of the
chain”, page 33), it must be exchanged.
Chain, chain sprocket and chain guide are wearing
parts that are subjected to great strain from the load.
During operation they wear against each other. The
chain, chain sprocket and chain guide should
therefore always be replaced together.
Because of the modular construction of the chain
hoist, the gear unit does not need to be disassembled
in order to exchange the chain guide and chain
sprocket. Instead, the gear unit is pulled off and the
chain sprocket is then exposed.
REMOVING THE CHAIN BOX
Bolt
Chain box
Release the SL safety clip(s) (1x or 2x) from
the bolt.
Hold the chain box firmly and pull out the
bolt(s) (1x or 2x).
Remove the chain box.
ONLY FOR GM2, GM4 AND GM8
C-link
Tensioner sleeve
Hammer the tensioner sleeve out of the C-
link.
ONLY FOR GM6
Fillister-head screw
M6x30 C-link
Unscrew the fillister-head screw M6x30
(2x).
Remove the halves of the C-link from the
chain.
OPENING THE CHAIN HOIST
Bayonet nut Motor cover
Release the bayonet nuts.
Detach the connection cable and control cable.
Unscrew the motor cover from the housing.
● The fillister-head screws are secured by O-
rings and thus do not fall out of the motor
cover.
Detach the couplings of the hoist motor and
brake from the control in the motor cover.
To Next Page
Loading...