Appendix a: troubleshooting, 5 tines turn, but wheels won't, 7 tiller jumps while tilling – Troy-Bilt 12090 User Manual
Page 45: 8 depth regulator lever difficult to move, 9 wheel and shaft move out to one side, Tiller pulls to one side, 11 tine holder bolt breaks or loosens, 12 poor traction, 14 engine lacks power, 15 engine difficult to start

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