2. INSTALL DIAPHRAGM SEAL, PROTECTOR GASKET, BACKUP GASKET, DIAPHRAGM, DOWEL PINS, AND REAR PUMP BODY

1. INSTALL BACKPLATE ASSEMBLY VALVES, SPRINGS, AND PLUGS

3. INSTALL PREFORMED PACKINGS, KEY, AND GEAR ASSEMBLIES

TM-5-3895-373-34 Paving Machine Bituminous Material Crawler Mounted Diesel Engine Driven Manual
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TM 5-3895-373-34 2.42 REPLACE/REPAIR AUXILIARY PUMP - Continued. E. ASSEMBLE - Continued. 2. INSTALL DIAPHRAGM SEAL, PROTECTOR GASKET, BACKUP GASKET, DIAPHRAGM, DOWEL PINS, AND REAR PUMP BODY. Hydraulic oil can be moderately flammable and can be an irritant to the skin, eyes, and respiratory system. Avoid prolonged exposure. Eye protection and rubber gloves must be worn when working with hydraulic oil. a. Lubricate diaphragm seal (42) with clean hydraulic oil. b. Install diaphragm seal (42), with open part of "V" section facing adapter plate assembly (22). c. Use a dull tool to seat diaphragm seal (42) in adapter plate assembly (22). Ensure diaphragm seal is fully seated before proceeding. d. Install protector gasket (41) and backup gasket (40). NOTE Entire diaphragm must fit inside the raised rim of diaphragm seal. e. Install diaphragm (39) bronze face out. NOTE Shortest dowel pins (24) are used in thickest pump body (20). f. Use drift punch and hammer to install dowel pins (24) in rear pump body (20). Non-tapered ends of dowel pins should protrude about 1/4 in. (6 mm) above backplate side of pump body. g. Align matchmarks and install rear pump body (20) on adapter plate assembly (22) to hold diaphragm (39) in place. GO TO NEXT PAGE 2-576

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