TM 10-3930-669-20 (5) Pivot mast assembly (5) fully closed. (6) Shift mast assembly (5) to align left side of pivot arm (6) evenly with left side of forklift (7). NOTE ·    Pivot arm should be parallel to shift tube when pivot arm is fully closed.  If pivot arm is not parallel to shift tube, or gap between pivot arm and shift housing is less than 0.25 in.  (6.4 mm), add shims to stop pad. ·    If notch is worn away on either side of stop pad, proceed to Step (9). ·    Add or remove shims as required. (7) Inspect stop pad (8) notch for wear or damage. (8) Inspect distance between pivot arm (6) and shift housing (9). (9) Open pivot arm (6) to gain access to stop pad (8). (10) Remove two nuts (10), washers (11), screws (12), shims (13), stop pad (8), and two washers (14) from pivot arm (6). (11) Install new stop pad (8) on pivot arm (6) with two screws (12), washers (14), shims (13) as required, washers (11), and nuts (10). 17-31