Johnson JPC-5100 - Slipping While Pedaling (JPC;B;S;E)

Feel slipping while pedaling (JPC/B/S/E)
Possible causes:
1 Belt tension is not
enough
2 Poly v Belt is
damaged
Fix:
1 Re-adjust the belt tension.
2 Replace poly v belt with a new one.
Adjust it
2-6 Revision: 1.0 Date: 2001/06/01