Challenge Xtreme, Trimmer, models:

22 CC	Quick Start Manual
3403842	Original Operating Instructions
CDB26	Assembly Manual
CX-PT 2538	Quick Start Manual
CXHT 661	Operating Instructions Manual
CXPHT 22	Quick Start Manual
HTEG10C-550	Operating Instructions Manual
M0E-3ET-460	Operating Instructions Manual
M0E-ET-410	Operating Instructions Manual
M1G-ZP-250	Instructions Manual
N0E-5ET-230	Operating Instructions Manual
QJB23	Assembly Manual
SGT26N	Original Instructions Manual