TM 10-3930-664-24 Section VIII.  EXHAUST SYSTEM MAINTENANCE 2-45.  MUFFLER / SPARK ARRESTOR ASSEMBLY REPLACEMENT This task covers: Removal, Cleaning, Inspection, and Installation INITIAL SETUP: Tools and Test Equipment: Equipment Condition: General Mechanics Tool Kit (1, App.  E) Counterweight removed (para.  2-124) Materials / Parts: Locknut, Item 10 (2 ea) Locknut, Item 12 (2 ea) A.  REMOVAL WARNING Significant burn hazard exists.  Allow engine   to   cool   before   you   perform maintenance on the muffler or exhaust    pipe.        Do    not    touch    hot exhaust    system    with    bare    hands; injury  will  result.    If  necessary,  use insulated pads and gloves. 1. Remove nuts (1) and washers  (2).    Separate  U-bolt (3) from clamping brace (4). 2. Release    inlet    extension    (5)    from    muffler    (6)    by removing  screws  (11)  and  locknuts  (12).    Discard locknuts. 3. Remove muffler (6) from forklift chassis by removing screws  (7),  washers  (8),  vibration  mounts    (9),  and locknuts  (10).  Discard locknuts. B.  CLEANING Clean muffler/spark arrestor in accordance with paragraph 1-24. 2-143