JLG 3508PS - Manual (Page 44)

FRAME & ATTACHING PARTS
3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9 31200204 1-34
Figure 1-11 Trailer Plug
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PAP3061