HS50_advance_level 1_20200522_221201 (1) - 第359页
06/2002 E dition Studen t Guide H S-50 Advance d I 9 Co nveyor Syst em 18 9.5. 3 L if ting t able motor u n it DAN G E R Comply wi th the saf ety inst r uct io ns . 9 9.5. 3.1 Removing t he Lif ting T able Motor / Sp…
Student Guide HS-50 Advanced I 06/2002 Edition
9 Conveyor System
17
➠ Carry out the steps in the area under the lifting table plate (e.g., exchange the proximity switch
for the motor or the lifting table or the limit switch for min./max. conveyor width as described in
the pertinent section below.
9.5.2.1 Installing the Lifting Table
WARNING
During the subsequent installation of the lifting table plate there is a risk of body members being
pinched, crushed or cut off, e.g., between the outer edges of the lifting table plate and the conveyor
assemblies. 9
➠ Make certain that the transmission lever on the pertinent lifting table motor is folded down on
the lifting curve.
➠ Holding the lifting table with both hands, place it into the guiding tubes with the guide pillars
vertical.
➠ Let the lifting table plate slowly side down.
➠ Check whether the lifting table plate is completely seated on the lifting curve.
➠ Install the pertinent ball bearing on the rocking levers.
06/2002 Edition Student Guide HS-50 Advanced I
9 Conveyor System
18
9.5.3 Lifting table motor unit
DANGER
Comply with the safety instructions. 9
9.5.3.1 Removing the Lifting Table Motor / Sprocket Wheel
➠ Remove the lifting table.
9
Fig. 9.5.2 Removing the LiftingTable Motor and / or the Lifting Table Proximity Switch
Key
A) Fold the transmission lever up
1) Motor mount 2) Proximity switch "lifting table down"
3) Proximity switch "lifting table up 4) Screws fastening the proximity switch :
2 hexagonal socket head cap screws M3 x
30
5) Reinforcement plate for proximity switch 6) Fasteners for clamping flange:
6 hexagonal socket head cap screws
M4x12
7) Clamping flange 8) Annular spring
9) Cam body 10) Sprocket wheel with lead tapes
Student Guide HS-50 Advanced I 06/2002 Edition
9 Conveyor System
19
NOTE
The lifting table motors are prefitted with cable and connector (different article numbers, depend-
ing on placement area 1-4). 9
➠ Undo and remove the six M4 hexagonal socket head cap screws on the clamping flange . Re-
move the annular spring under the clamping flange.
➠ Label the allocation of the proximity switch for "lifting table up" and "lifting table down" .
➠ Remove the 2 proximity switches from the motor mount (two M3 hexagonal socket head cap
screws), , and take off the "reinforcement plate for proximity switch" in the process.
Set the proximity switch down on the mounting plate.
➠ Fold up the transmission lever on the motor mount.
➠ Undo and remove the 2 hexagonal socket head cap screws on the sprocket wheel .
Be careful with the washers underneath and remove the sprocket wheel incl. cam body.
➠ Lift off the cover of the pertinent cable duct which is parallel to the conveyor assembly.
➠ Carefully (!) remove the corresponding cable ties.
➠ In the cable duct, disconnect the plug-and-socket connection of the lifting table motor which is
to be removed (X70 / X71 / X72 / X73: see circuit diagram for "Power supply for lifting table
motors 1 - 4").
NOTE:
If you discovered a break in the lifting table cable during a continuity test, the cable to the power
supply unit must be run on a weaving course and disconnected at the corresponding connector
X5 / X 6 / X7 / X8 (see above-mentioned circuit diagram).
You may wish to contact Siemens SMD Service regarding this work. 9
➠ Undo and remove the screws fastening the motor to the motor mount (four M5 hexagonal
socket head cap screws) and pull the lifting table motor out.
9.5.3.2 Installing the Lifting Table Motor / Sprocket Wheel
➠ Install the new lifting table motor and the (new) sprocket weel in the reverse order to that de-
scribed for the removal.
The pin in the sprocket wheel secures the sprocket wheel in the correct position.
11) Screws fastening the "sprocket wheel with
lead tapes": 2 hexagonal socket head cap
screws M 3 x 30 with 2 adjusting shims
12) Motor moiunt: 4 hexagonal socket head
cap screws M5 x 12
13) Transmission lever 14) Motor for lifting table 1, 2, 3 or 4