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TM  9-2320-356-BD
CHAPTER 11
BRAKES  AND  WHEELS
BDAR  FIXES  SHALL  BE  USED  ONLY  IN  COMBAT
AT  THE  DISCRETION  OF  THE  COMMANDER
AND  SHALL  BE  REPAIRED  BY  STANDARD  MAINTENANCE  PROCEDURES
AS  SOON  AS  PRACTICABLE  AFTER  THE  MISSION  IS  COMPLETED.
Section   I.   GENERAL
11-1.
GENERAL
a.
Brake   systems   are   classified   in   different   categories   depending   upon   how   they
are   actuated   or   assisted.
There   are   air   hydraulic,   vacuum   assist,   hydraulic
assist,   and   air   or   hydraulic   brake   systems.
Every   system   except   the
straight   air   system   uses   hydraulic   lines   to   all   wheels,   wheel   cylinders,
hydraulic    reservoirs,    and    master    cylinders.
b.
Wheel   failure   can   have   a   multitude   of   causes.
Availability    of    replacement
wheels   may   become   a   problem   that   can   be   solved   only   by   removal   from   other
damaged   equipment.
An   alternate   source   of   supply   for   wheels   is
foreign-owned   equipment   (refer   to   appendix   C).
11-1
  
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