single pump disassembly

DIAGRAM - TM-55-1930-209-14P-6_287

TM-55-1930-209-14P-6 Water Purification Barges (NSN 1930-01-234-2165) Chlorination System Manual
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•15H pump and motor service manual single pump disassembly GENERAL NOTES Remember dirt is the enemy of any hydraulic system. The best way to fight this enemy is to prevent its entry into the system. Make sure you disassemble and reassemble this pump in spotlessly clean surroundings. Apply a coating of grease (cup grease consistency) to surfaces of all "O" rings and oil seals to facilitate positive location as they are installed in a reassembly. DISASSEMBLY BY SUBASSEMBLY 1. Index mark the port end cover (38), gear housing (26) and shaft end cover (9) to facilitate reassembly. 2. Remove the four cap screws (39) from the port end cover (38). 3. Lift off port end cover (38); the thrust plate (28) with pocket seals and the roller bearings (37, 40) will also be removed in this operation. 4. Remove the driven gear (32). 5. Remove the gear housing (26) and drive gear (23) from the shaft end cover (9). Be sure to keep gears together as they are a matched set. SHAFT END COVER 1. Turn the shaft end cover (9) over so that the drive end of the shaft is facing up. With a screwdriver remove the snap ring (1) then remove the bearing shield (2) and bearing seal (3). 2. Pull the drive shaft (6) from the shaft end cover. The shaft ball bearing (4) will also be removed. Then lift out the bearing spacer (7). 3. Remove and discard the oil seal (8) from the shaft end cover. 4. Turn the cover over so that the thrust plate is up. Pry off thrust plate (22) carefully with a knife blade or thin screwdriver. Remove and discard the pocket seals (20), (21). 5. Pull the bearings (19, 33) with a bearing puller from the shaft end cover (9)-ONLY-if they) are being replaced. 6. Remove the check valve assemblies (34, 35, 36). 7. Remove the shaft "O" ring (18) and the back-up rings (17) from shaft end cover (9). 8. Remove key (5) and press bearing (4) from shaft (6). HOUSING 1. Remove and discard "O" rings (24, 27) from grooves in housing (26). PORT END COVER 1. Pry off the thrust plate (28) with a knife blade or thin screwdriver. Remove and discard the pocket seals (29), (30). 2. Pull the bearings (37, 40) with a hearing puller from the port end cover (38)-ONLY-if they are being replaced. Commercial Shearing, Inc. 1964 5

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