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Using the 23mm open-end wrench, carefully turn the upper brass guide
out of the cartridge. Make sure that the longitudinal guides of the cartridge
are not in engagement with the open-end wrench and are therefore not
damaged.
Duetothenethread,arelativelylargenumberofturnsarenecessaryto
completely unscrew the brass guide.
The brass guide is secured with a screw lock.
Use the 2mm Allen key to unscrew the two grub screws on the left
and right at the lower end of the cartridge.
Note! The bed screws are glued in with high strength
screw lock. Loosen the screws slowly and with care.