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PLEASE NOTE: THIS IS HAUSER GERMANY MANUAL.
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Mounting / Repair
39
5.7 Changing the gearbox (pulley mounted on gearbox shaft)
88
106
107,108
98
99
S
L
1. Dismantle the motor (chapter 5.6 continued,
according to the gearbox used).
2. Slacken the timing belt (chapter 5.2.2 point 2-
5).
3. Remove the cover plate (106).
4. Loosen the gearbox fastening (98) and
carefully remove the gearbox.
5. Measure the distance S (distance from the
upper edge of the pulley to the gearbox flange)
or L (distance from the end of the shaft to the
upper edge of the pulley) (ac/- 0.1
mm).
6. Loosen the set screw (88) and carefully pull off
the pulley (use claw puller).
7. Place the pulley on the new gearbox at the
distance S (
Table 12
).
Caution
Press down the pulley using the thread in the shaft. DO NOT use a hammer on the
shaft as this can damage the gearbox.
8. Measure the diameter of the core removing hole of the pulley tap. Using a twist drill 0.5mm
smaller, drill carefully 1mm deep into the shaft key of the gearbox through the tap in the
pulley. Remove any swarf.
9. Screw the set screw into the pulley using screw retention (Loctite).
10. Place the timing belt over the pulley.
11. Attach the gearbox to the linear actuator and tighten the gearbox fastening (98).
12. Tension the timing belt (chapter 5.2.3).
13. Fasten the cover plate (106).
14. Re-assemble the motor (chapter 5.5 continued, according to the gearbox used).
Gearbox type
Unit
HPLA80
HPLA120
HPLA180
S
L
S
L
S
L
Stöber P3
mm
38,0
5,5 --- --- --- ---
Stöber P4
mm 43,0 1,5 55,5 -9,0 --- ---
Stöber P5
mm --- --- 43,0 1,5 70,5 6,5
Table 12:
Standard distances S (distance between pulley and gearbox flange) and L
(distance between shaft and pulley)
5.8
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PART# NOMENCLATURE