Engine Primer Switch

TM-9-6115-464-12 Wrench Impact Hydraulic Model MV-12-140T Manual
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ARMY TM 9-6115-464-12 AIR FORCE TO 35C2-3-445-1 NAVY NAVFAC P-8-624-12 w. Engine Primer Switch. (1) Removal. (a) Tag and disconnect electrical leads to ENGINE PRIMER switch. (b) Remove nut (101, Figure 4-38, sheet 2 of 3) and tooth lockwasher (102) to remove switch (103) and key washer (104). (c) Do not remove nut (105) unless inspection reveals damage and replacement is necessary. (2) Cleaning and Inspection. (a) Clean switch with filtered compressed air and a soft bristle brush or wipe with a clean, lint-free cloth lightly moistened with an approved solvent. (b) Visually inspect switch for cracked casing, corrosion, stripped or otherwise damaged threads, and evidence of shorting or other damage. (3) Testing. (a) Using an ohmmeter, check for open circuit across terminals. Ohmmeter shall indicate open circuit. (b) Hold switch lever in ON position (toward mounting post key way) and check ohmmeter indication. Ohmmeter shall indicate continuity. (c) Replace switch if it fails either of the above tests. (4) Installation. (a) If removed, install nut (105, Figure 4-38, sheet 2 of 3). (b) Install key washer (104), engine primer switch (103), tooth lockwasher (102), and nut (101). (c) Connect electrical lead to engine primer switch. x. Synchronizing Light Assemblies. (1) Removal and Disassembly. (a) Tag and disconnect electrical leads to synchronizing light assemblies. (b) Remove nuts (106, Figure 4-38, sheet 2 of 3) and tooth lockvashers (107) to remove synchronizing Iight assemblies (108). (c) Unscrew lens (109). Depress lamps (110) and rotate counterclockwise to remove from bases (111). (2) Cleaning and Inspection. (a) (b) (c) (d) (e) Clean synchronizing light assemblies with filtered compressed air and a soft bristle brush or wipe with a clean, lint-free cloth lightly moistened with an approved solvent. Visually inspect bases for cracks, corrosion, stripped or otherwise damaged threads, and evidence of shorting. Inspect lens for cracks, breaks, and stripped or otherwise damaged threads. Inspect lamps for corrosion, cracked or broken glass, and burned out filament. Replace any damaged or defective parts. (3) Assembly and Installation. (a) (b) (c) Position and rotate lamps (110, Figure 4-38, sheet 2 of 3) clockwise to secure in bases (111 ). Install lens (109). Install synchronizing light assemblies (108), tooth lockwashers (107), and nuts (106). Connect electrical leads to synchronizing light assemblies. 4-99

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