Disassembly Procedure
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Table 1
Required Tools     |
Tool     |
Part Number     |
Part Description     |
Qty     |
A     |
1P-2320     |
Combination Puller     |
1     |
B     |
1U-5429     |
Snap Ring Pliers     |
1     |
Start By:
- Remove the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump - Remove".
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NOTICE |
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Illustration 1 | g01207653 |
- Loosen bolt (3) and use Tooling (A) in order to separate gear (2) from the pump shaft.
- Remove bolt (3), the washer, and gear (2) from the pump shaft.
- Remove tube assemblies (1) .
- Put an alignment mark across the sections of the fuel transfer pump. This is done in order to maintain alignment when the pump is assembled.
- Remove bolts (4) that hold the fuel transfer pump together, but do not separate the components at this time.
- Position the fuel transfer pump on the end of relief valve. This is the flat end.
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Illustration 2 | g01207664 |
- Carefully lift front housing (5) off the dowels. Ensure that front housing (5) is oriented straight when front housing (5) is being lifted.
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Illustration 3 | g01207672 |
- Inspect bearing (6) in front housing (5). The inside diameter of a new bearing (6) must be 15.951 mm (0.6280 inch).
- If bearing (6) is worn or damaged, replacement of front housing (5) is necessary.
- Turn over the front housing.
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Illustration 4 | g01207717 |
- Remove O-ring seal (8) from front housing (5) .
Note: Seal seat (7) has an O-ring seal which gives resistance to movement.
- Remove seal seat (7). Seal seat (7) has an O-ring seal around the outside. Be careful not to damage front housing (5) while seal seat (7) is being removed.
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Illustration 5 | g01207699 |
- Remove lip seal (9) from front housing (5). Be careful not to damage front housing (5) while the seal is being removed.
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Illustration 6 | g01207702 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Remove carbon face seal (10). The seal components are shown in the inset. Seal seat (7) was previously removed from the front housing.
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Illustration 7 | g01207703 |
- Use Tooling (B) in order to remove retaining ring (12) .
- Remove dowels (11) .
- Carefully lift middle housing (13) off the dowels. Ensure that middle housing (13) is oriented straight when middle housing (13) is being lifted.
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Illustration 8 | g01207704 |
- Remove O-ring seal (14) .
- Remove check valves (15) from middle housing (13) .
- Inspect bearings (16) in middle housing (13). The inside diameter of new bearings (16) must be 15.951 mm (0.6280 inch).
- If bearings (16) are worn or damaged, replacement of middle housing (13) is necessary.
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Illustration 9 | g01207706 |
- Remove dowels (18) .
- Remove gear cases (17) .
- Inspect the gear cases for wear. Also ensure that the gear cases are not damaged.
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Illustration 10 | g01207708 |
- Remove shaft assembly (19) and shaft assembly (20) .
- Inspect the shaft assemblies for wear. Ensure that the shaft assemblies are not damaged. The shaft diameter of a new shaft should be 15.869 ± 0.006 mm (0.6248 ± 0.0002 inch).
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Illustration 11 | g01207709 |
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Illustration 12 | g01207712 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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Note: Mark the location of relief valve plug (22) so that the relief valve plug can be installed in the same place.
Note: Do not change the position of the adjustment screw in relief valve plug (22) .
- Remove plug (21) from rear housing (23). Remove relief valve plug (22), guide (26), spring (25), and valve (24) from rear housing (23) .
- Inspect valve (24) and the valve seat in rear housing (23) .
- Inspect spring (25). The free length of spring (25) is 57.1 mm (2.25 inch).
- Inspect the washer and inspect relief valve plug (22). If the washer is damaged, relief valve plug (22) will need to be replaced.