Duerkopp Adler 506-3 Service Instructions Manual page 30

5.4 Worm-gear play
26
There must be as little as possible gear play between the worm
screw 11 and worm gear.
11 12
CAUTION: danger of injury
Turn off the main switch.
The worm-gear play may only be adjusted with the main switch turned
off.
CAUTION:
If an intermediate transmission is fitted it must be removed before this check.
Removing the intermediate transmission
–
Remove disc cam as described in chapter 4.1.
–
Unscrew screws 4 and remove intermediate transmission 5.
–
Unscrew screws 6 and remove bracket 7.
Checking the worm-gear play
–
Turn the disc cam to right and left.
A degree of play must be perceptible.
There must be play at all points of the worm gear. Continue to turn
the disc cam and check at all points.
Adjustment:
–
Remove arm cover.
–
Loosen bracket with oil felt 10 (see page 21).
–
Loosen cheese-head screws 12.
–
Adjust the gear play by axially shifting the conical worm screw 11
along the arm shaft.
CAUTION:
The first screw 12 of the worm screw - seen in the direction of
rotation - must be on the surface of the arm shaft.
–
Tighten locking screws 12.
–
Adjust bracket with oil felt to exert slight pressure and tighten.
–
Replace arm cover.
–
Replace intermediate transmission (see chapter 4.2).
7 6
4
5