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TM 5-4320-313-14
4-16. MUFFLER/SPARK ARRESTOR
This task consists of:
a. Removal
b. Service
c. Installation
INITIAL SETUP:
Tools Required:
Tool Kit, General Mechanics (item 1, appendix B)
Materials Required:
Gasket, P/N 50122400
General Safety Instructions:
Unit must be cool.
Equipment Conditions:
Pumping assembly shut down in accordance with paragraph 2-6.
a. Removal. (Refer to figure 4-9).
WARNING
Handling a hot muffler can cause severe burns. Allow unit to cool before handling.
(1) Remove two screws (1) and two washers (2).
(2) Remove heat shield (3).
(3) Remove three screws (4) and three washers (5).
(4) Remove protective screen (6).
(5) Remove two nuts (7).
(6) Remove muffler (8) and gasket (9). Discard gasket (9).
(7) Remove cleanout port plug (10).
b. Service.
(1) Clean the muffler/spark arrestor by lightly tapping the muffler body to loosen carbon soot
and flush out with water.
(2) Inspect screws, nuts, washers, heat shield, protective screen and mufler/spark arrestor
for corrosion or other damage. Replace damaged parts.
Change 1 4-22
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