4-4 PUMP ASSEMBLY MECHANICAL SEAL REPAIR.

Section II. MAINTENANCE PROCEDURES - TM-10-4320-307-24_414

PUMP ASSEMBLY MECHANICAL SEAL REPAIR (CONT) - TM-10-4320-307-24_416

TM-10-4320-307-24 Pump Assembly (Mainline) Diesel Engine Driven 800 GPM NSN 4320-01-193-3430 Manual
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TM 10-4320-307-24 4-4 PUMP ASSEMBLY MECHANICAL SEAL REPAIR. This task covers: a. Disassembly b. Cleaning/lnspection/Repair c. Assembly INITIAL SETUP Tools Equipment Tool kit, general mechanic's (Item 1, Appendix B) Condition Reference Condition Description Materials/Parts Packings Paragraph Mechanical seal removed Seal rings 3-11 Dry cleaning solvent (Item 30, Appendix C) General Safety Instructions Well ventilated area required during cleaning DISASSEMBLY: NOTE Disassembly of the stationary seal rings, rotary seal rings, and packings is normally enough to refurbish the mechanical seal. Seal faces are often reconditionable by lapping. Each time the mechanical seal is replaced or disassembled, replace packings. 1. Remove six setscrews (1) and remove shaft collar (2). 2. Draw shaft sleeve (3) from seal plate (4). 3. Remove shaft sleeve packing (5). 4. Twist rotary seal ring assembly (6) and spring (7) from shaft sleeve (3). 5. Separate rotary seal ring (6) from rotary seal ring carrier (8). Remove rotary seal ring packing (9). Do not remove seal face protection washer (10). 6. Push out stationary seal ring (11) and remove stationary seal ring packing (12). 7. Remove seal plate packing (13) from seal plate (4). 8. Remove screw (14), eccentric washer (15), and spacer (16) from seal plate (4). 4-4

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