TM 10-3930-659-20 5-13. FUEL PRESSURE DIFFERENTIAL SWITCH REPLACEMENT.(Con’t). b. INSTALLATION 1. Install   tee   (15)   on   fuel   pressure   differential switch (4). 2. Install adapter (14) and fuel pressure transducer (12) on tee (15). 3. Install  adapter  (13)  on  fuel  pressure  differential switch (4). 4. Install two brackets (6) on fuel pressure differen- tial  switch  (4)  with  screw  (5)  and  new  locknut (7). 5. Install  fuel  pressure  differential  switch  (4)  and two brackets (6) on bracket (9) with spacer (10), screw (11), and new locknut (8). TA706870 5-36