Check the gear mesh by moving the main
gear wheel slightly in both directions. A
small amount of play should be noticable.
If the gear mesh is too tight, loosen the
hex screws holding the mainshaft bearing
blocks and press the blocks to the front. If
the gear play is too much loosen the hex
screws of the motor carrier and the bea-
ring blocks and press both together.
Push brass bush S988 onto the end of the
motor shaft
Adjust the motor shaft so that the
fl
at spot
is at the rear. Push the belt wheel S981 on
the shaft and
fi
t a grub screw M3x5 737
with Loctite.
Tighten the belt wheel.Take care that the
grub screw is really on the
fl
at spot. There-
fore leave the screw slightly loose and feel
the endpoints of the
fl
at spot while turning
the motor back and forth slightly. When
this is achieved tighten the screw.
