HTC 500 - Changing the Upper Belt, HTC 500

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Fig. 16
Fig. 15
Fig. 17
Fig. 18
Changing the upper belt, HTC 500
Changing the upper belt on the HTC 500 is more complicated than the HTC 650. Changing the
belt takes 1-2 hours, based on how experienced you are in performing the change.
NOTE! Only use rounded screwdrivers when fitting the belt.
1. Disconnect the chassis from the grinding head.
2. Disconnect the motor cable (make a note of the connections).
3. Remove the cover.
4. Undo and remove the screws securing the motor (Fig. 15).
5. Remove the split plates with the lugs (Fig. 16).
6. Check the seals, and change if they are damaged. Check if the shafts are worn. They
should be approx. 17 mm. If they are worn more than 2 mm, the entire pulley shaft must be
changed. See pages 37-40, Changing the inner belt, for dismantling instructions.
7. Removing the split plates exposes three shafts.
8. The belt should run on the three shafts and on the edge of the motor plate. NOTE: Make
sure that the belt is not fouled on the sharp edges of the shafts. The belt can crack or
break.
9 Stretch the belt over the three shafts and allow it to take a short cut under the motor (Fig.
17).
10. Use rounded screwdrivers to pry the belt out onto the edge (Fig 18).
11. Once the bet is fitted, refit the split plates.
12. Refit the screws securing the motor.
13. Refit the cover.
14. Connect the motor cable.
15. Refit the chassis on the head.
The machine is now ready to be used.