395 Excavator SGD00001-UP (MACHINE) POWERED BY C18 Engine(M0121935 ...
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Product: EXCAVATOR
Model: 395 EXCAVATOR SGD
Configuration: 395 Excavator SGD00001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly
C15 and C18 Engines for Caterpillar Built Machines
Media Number -RENR8261-31 Publication Date -01/08/2015 Date Updated -13/10/2020
i08018571
Water Pump - Assemble
SMCS - 1361-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
D 1P-0510 Driver Group 1
E 138-9299(1) Oil Seal Tool 1
E 488-2672(2) Oil Seal Tool 1
F 139-0088(1) Seal Tool 1
F 449-1904(2) Installer Tool 1
(1)
Use with a 19.1 mm (0.75 inch) shaft
(2)
Use with a 25.4 mm (1.00 inch) shaft
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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395 Excavator SGD00001-UP (MACHINE) POWERED BY C18 Engine(M0121935 ... Page 2 of 3
Illustration 1 g01021798
1. Clean water pump shaft (6) and the counterbore for lip seal (9) in housing (1).
2. Use Tooling (D) to install a new lip seal (9) in housing (1).
Note: Install the seal with the part number on the metal face of the seal toward the housing.
Ensure that the lip seal is flush with the front edge of the counterbore of the housing. Do not
lubricate the lip seal. Use a press to install the lip seal. Do not install the lip seal by hand.
3. Install bearing assembly (8) on water pump shaft (6).
4. Place retainer (5) with “OUTSIDE” markings toward the gear end of water pump shaft (6).
5. Use a press and install gear (2) on water pump shaft (6).
Note: Install gear (2) against bearing assembly (8).
6. Slide Tooling (E) over shaft (6). The tapered edge will be facing outward.
7. Install gear (2) and the water pump shaft into housing (1). Use care not to damage lip seal
(9). Install bolts (3) that hold bearing retainer (5) to the housing.
8. Remove Tooling (E) from water pump shaft (6).
9. Use a press and Tooling (F) to install a new seal group (7) over shaft (6) and into housing
(1). Ensure that the outer shell of the seal is fully seated in the housing.
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395 Excavator SGD00001-UP (MACHINE) POWERED BY C18 Engine(M0121935 ... Page 3 of 3
10. Put impeller (4) in position on water pump shaft (6). Use a press and install impeller (4) on
the water pump shaft.
Note: Install impeller (4) within 0.00 ± 0.25 mm (0.000 ± 0.010 inch) of the end of the
water pump shaft.
11. Install O-ring seal (10) on the housing.
End By:
a. Install the water pump. Refer to Disassembly and Assembly, "Water Pump-Install".
Copyright 1993 - 2023 Caterpillar Inc. Fri Mar 3 10:45:25 UTC+1000 2023
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