TM 10-3930-671-24 Brake & Inching Pedal Adjustment (Cont’d) Figure 2.  Left-Hand Pedal - Inching Master Cylinder        Figure 3.  Right-Hand Pedal - Brake Master Cylinder Inching/Brake Overlap Adjustment 1. Be sure there is no entrapped air in system.  Bleed system thoroughly. 2. After  bleeding  system,  inching  system  may  be  adjusted  from  nominal  by  adding  or  removing  adjustor  washers from inching push rod assembly. NOTE The nominal or standard installation for adjustor washers on inching pedal is 4 washers (0.040 in. nominal thickness each). 3. To  increase  overlap  (reduce  truck  rollback  and  increase  inching  sensitivity,  i.e.    reduce  pedal  stroke  between transmission disengagement and brake application):  Remove one (1) washer; test truck for inch-brake operation. Additional washers may be removed, one at a time, to achieve desired inching-to-braking response. All washers may be removed if required. NOTE Excessive overlap will cause transmission overheating and brake wear because transmission will not be sufficiently disengaged as brakes are applied. 4. To  decrease  overlap  (decrease  inching-to-braking  response  or  sensitivity):    Add  one  (1)  washer;  test  truck  for inch-brake operation.  Additional washers may be added, one at a time, while testing to achieve desired inching-to- braking response.  Four (4) washers total max. Pedal Up Stop (Freeplay) Adjustment Adjust pedal height such that when pedal is fully returned, brake and inching master cylinders are not engaged. Inching pedal must have .125-.375 in.  (3.2-9.5 mm) freeplay at foot pad. NOTE The standard position for the stop screw is with the head and locknut installed on the top (outer) side of bracket.  If 0.25-inch nominal freeplay cannot be achieved, adjusting bolt may be installed from opposite side. F-391