TM 10-3930-669-20 15-18.  ENGINE COMPARTMENT INSULATION REPLACEMENT. This task covers: a.  Removal b.  Installation c.  Specifications of Insulation Panels INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Materials/Parts Adhesive (Item 1, Appendix C) Insulation Equipment Condition Cab removed (Para 15-2) Master cylinder removed (Para 11-4) a. Removal NOTE Engine access door insulation panel removal is shown.  Removal of all other insulation panels are similar except for sizes and shapes of insulation panels and quantities of. retainers. (1) Remove four retainers (1) from insulation panel (2) and studs (3). (2) Remove insulation panel (2) from cab (4) and studs (3). (3) Remove any old adhesive, insulation, or dirt from cab (4) surface. 15-63