TM 10-3930-659-20 5-12. FUEL PRIMER PUMP REPLACEMENT. This task covers: a. Removal b. Installation INITIAL SETUP: Equipment Conditions: Materials/Parts: •·   Battery disconnect switch in OFF position (see • Rags (Item 27, Appendix C) TM 10-3930-659-10). •    Left engine upper sideshield opened (see TM 10-• References: 3930-659-10). • TM 10-3930-659-10 Tools/Test Equipment: •    General mechanic's tool kit (Item 44, Appendix F) General Safety Instructions: •    DO NOT perform this procedure near fire, flames, or sparks. WARNING Diesel  fuel  Is  combustible.    DO  NOT  smoke  or  allow  open  flame  near  fuel primer  pump.  Failure  to  follow  this  warning  will  result  in  death  or  serious Injury to personnel.  If you are burned, Immediately seek medical aid. NOTE A suitable container should be used to catch any draining fuel.  Ensure that all spills are properly cleaned. a.  REMOVAL 1. Disconnect two fuel lines (1) and remove elbows (2) from fuel primer pump (3). 2. Loosen Jamnut (5) and remove fuel primer pump (3) from bracket (4). 5-32