72 Series 4144 Components FC, FS, KM
: Push the clamp (1) 
5910 890 1100 on to the drive 
tube so that the bearing housing 
collar (2) remains free and the 
fixing hole in the drive tube lines 
up with the gap (arrows) in the 
clamp.
: The clamp's thrust piece (1) must 
line up with the notch (arrow) in 
the bearing housing.
– Carefully close the wing screw (1) 
until the bearing housing (2) can 
be pulled out.
1
2
545RA274 TG545RA275 TG
1
545RA276 TG
1
2
Do not apply too much pressure to 
the drive tube with the clamp since 
the tube will otherwise be 
permanently deformed and the 
bearing housing will no longer fit 
properly.
: Pull out the bearing housing (2).
– Leave the clamp in position, and 
do not change its setting, to 
install a new bearing housing.
: Push the new bearing housing 
into the drive tube so that their 
holes (arrow) are in alignment.
– Push the bearing housing fully 
home.
– Check position of hole, turn 
bearing housing slightly if 
necessary until holes are exactly 
in alignment.
– Loosen and remove the clamp.
– Reassemble in the reverse 
sequence.
545RA277 TG
9.1.6 Loop Handle
– Remove the drive tube, b 9.1
– Loosen the star knob screw (1).
: Slip the loop handle (2) off the 
drive tube.
: Take out the star knob screw (1).
: Pull the clamp (2) out of the loop 
handle (3).
– Check the individual parts and 
replace if necessary.
– Reassemble in the reverse 
sequence.
– Do not finally tighten the star 
knob screw.
1
2
545RA258 TG
3
1
545RA259 TG
2