TM 10-3930-669-10 3-10.  PARKING BRAKE ADJUSTMENT AND CHECK (CONT). CAUTION Do   not   overtighten   brake   adjusting knob   or   damage   to   equipment   will result. (3) Turn    adjusting    knob    (3)    clockwise    to tighten brake cable tension or counterclockwise    to    release    the    brake cable tension. (4) Pull  up  and  back  on  parking  brake  lever (2)  to  set  brake  cable  tension.    Repeat Steps (1) and (2) as necessary until brake cable tension is correct. (5) Close cab door (1). b. Parking Brake Test. (1) Start engine (Para 2-10.  d.). (2) Place transmission control lever in forward low gear (Para 2-10.  e.).  At low travel   speed   apply   the   parking   brake. Fork  lift  should  come  to  a  rapid  stop.    If forklift   does   not   come   to   a   rapid   stop, release    parking    brake    and    turn    knob clockwise.  Retest. (3) Shut down forklift (Para 2-10.  h.). 3-11.  FUEL/WATER SEPARATOR SERVICE. Fuel/Water Separator Service. (1) Open right-hand engine access cover (1). (2) Open drain valve (2) and drain water into a suitable container. (3) Close drain valve (2). (4) Close right-hand engine access cover (1). 3-18