TM 9-6115-670-14&P 4-98 4.37.  STARTER. This task covers: a.  Test b.  Replace INITIAL SETUP Tools Shop Equipment, Electrical Repair, Semi Trailer Mounted (Item 3, Appendix B) including Test Stand, Automotive Generator Equipment Conditions Vehicle engine not running. MASTER ON-OFF switch on APU control unit set to OFF. Materials/Parts Starter TEST a.  Remove starter (perform steps a through d of REPLACE). b.  Use test stand to test starter. c.  If starter does not turn over, replace starter. REPLACE a.  Pull back protective cover and remove one nut and lock washer (3, Figure 4-25) and tag. Remove leads SB (4) and positive (4) lead (7) from battery to starter. b.  Remove lead STR (5) from starter (2). c.  Remove two screws and lock washers (1) and remove starter (2) from engine bell housing. d.  Install new starter (2) and secure to engine bell housing with two lock washers and screws (1). WARNING Ensure  that  APU  DC  power  supply  is  disconnected. Failure  to  observe  this  warning could result in severe injury or DEATH to personnel. WARNING Ensure that the APU is turned off and completely de- energized.  Failure to observe this warning could result in severe injury or DEATH to personnel. NOTE A bad solenoid causes poor engagement at starter gears and the flywheel (6).  While starter is removed, inspect flywheel (6) for chipped or missing gear teeth. Notify the next higher level of maintenance if chipped or missing gear teeth exist.