Opera ting Ma nua l a nd Inspection Book
SMART LIFT 2.30 SL, 2.35 SL, 2.40 SL / HYMAX S 3000, 3500, 4000
20110015 OPI
47
Version 1.0
7.3 Readjustment of the polyflex belt
When exchanging the drive belt, the belt tension must be readjusted. For this, remove the v-belt
cover.
Figure 12: V-belt cover (version with riser)
1: Column
2: Riser
3: V-belt cover
4: Lift spindle
Subsequently the v-belt tension on the tensioning element is reset (figure 14). For this, the 3
fastening screws of the motor (Figure 14, no. 1) are slightly relaxed by one rotation. On the
adjusting screws (Figure 14, no. 2) the v-belt can now be relaxed or tensioned accordingly.
Figure 13:
Position of the drive belt
1: Riser; (optional)
2: Tensioning elements to readjust the belt tension;
3: Grooved pulley;
4: Polyflex belt (drive v-belt)
5: Drive shaft motor
Figure 14: Setting the v-belt tension
1: Motor fastening screws
2: Alignment screws for v-belt tension
The polyflex belt is set to the corresponding belt deflection with the aid of accessory parts
(Figure 15); to be purchased from Nußbaum Hebetechnik GmbH & CO.KG.
Figure 15: Accessory part
•
Before setting the v-belt, the measurement device is to be placed on a flat solid surface
and pushed downwards until the stylus is laying flat on the smooth surface.
•
Afterwards null the dial gauge, meaning the outer ring of the dial gage is to be turned so
the pointer is at zero.