TM   10-3930-643-20 ENGINE,  FUEL,  EXHAUST  AND  COOLING  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 4-4.   Fuel   STE/ICE   Tests. a. 1. 2. 3. 4. 5. 6. TEST  24  -   FUEL  SUPPLY  PRESSURE. Refer   to   VTM-General   Setup   and   Checkout   Instructions   in   TM   9-4910- 571-12&P. Connect  power  cables to   battery,   as   shown. Remove   two   clamps   on   fuel   line   from   the   fuel   pump   to   secondary   fuel f i l t e r . Disconnect   line   at   fuel   pump.   Clean   line   and   fitting.   Refer   to Chapter   2. Install   tee   TK   24   and   connect   line.      Install   blue   tranducer.      Connect cable   to   transducer. Perform   test   using   procedure   Test   50   as   instructed   in   TM   9-4910-571-12&P. pressure   reading   should   be   between   40-60   psi,   if   not,   change   fuel   filters. Refer   to   paragraphs   4-22   and   4-23.      Repeat   test   in   step   4.      If   pressure is   not   within   specifications,   notify   Direct   Support. Return   vehicle   to   its   original   condition. 4-14