2. Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D8T TRACK-TYPE TRACTOR J8B
Configuration: D8T TRACK-TYPE TRACTOR J8B00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
D8T Track-Type Tractor Machine Systems
Media Number -RENR7480-03 Publication Date -01/08/2008 Date Updated -11/08/2008
i02159208
Implement Pump - Assemble
SMCS - 5073-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-0510 Driver Group 1
B 1P-1854 Retaining Ring Pliers 1
C 1P-1857 Retaining Ring Pliers 1
E 1P-1863 Retaining Ring Pliers 1
F 8T-5096 Dial Indicator Gp 1
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts.
Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are
worn or damaged, use new Caterpillar parts for replacement.
Note: Apply a light film of 10W oil to all components before assembly.
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3. Illustration 1 g01095444
1. Use Tooling (C) in order to install retaining ring (50) to pump housing (37) .
Illustration 2 g01071756
2. Use Tooling (A) in order to install lip seal (51) to the pump housing. The sealing lip of the
lip seal should face toward the bearing cup. The lip seal must seat against the retaining ring.
Illustration 3 g01095445
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4. 3. Lower the temperature of bearing cup (52). Use Tooling (A) in order to install bearing cup
(52) to pump housing (37). Install bearing cup (52) until the bearing cup seats.
Illustration 4 g01095461
4. Install brass bearings (49) into pump housing (37) .
5. Use the following steps to determine the preload on the bearings of the pump assembly.
Illustration 5 g01095446
a. Lower the temperature of shaft (37A). Use a suitable hydraulic press in order to
install shaft (37A) into bearing cone (38). Install shaft (37A) until bearing cone (38) is
seated onto shaft (37A) .
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5. Illustration 6 g01095449
b. Install shaft (37A) into pump housing (37) .
Illustration 7 g01095454
c. Install spacer (36) and bearing cone (35) on shaft (37A) .
Illustration 8 g01096578
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6. d. Lower the temperature of bearing cup (29). Use Tooling (A) and a suitable press in
order to install bearing cup (29) in pump head (25). Install the bearing cup until the
cup is seated.
Illustration 9 g01095458
Illustration 10 g01095459
e. Position pump head (25) onto pump housing (37). Install bolts (26) but do not tighten
bolts (26) at this point.
f. Use a feeler gauge to measure the distance between the pump head and the pump
housing. Take measurements at three equal locations on the surface between the
pump head and the pump housing.
g. The average of the three dimension should be zero to 0.050 mm (0.0020 inch).
h. If the dimension is not correct remove shim (35). Refer to Illustration 7. To achieve
the correct dimension, grind the shim or replace shim (35) .
i. When the correct dimension is achieved tighten bolts (26) and then invert the pump
assembly.
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7. j. Use Tooling (E), a suitable screwdriver, and a set of slip joint pliers to check the end
play on shaft (37A). If end play exists on the shaft, repeat Step 5 until the correct
dimension is reached.
k. Remove bolts (26) and pump head (25) from pump housing (37). Remove bearing
cone (35) and shim (36) from shaft (37A). Remove shaft (37A) .
l. Proceed with the assembly of the piston pump.
Illustration 11 g01071779
6. Install pins (44) into barrel (43) .
Illustration 12 g01071455
7. Install seat (48) in order to secure pins (44) in barrel (43) .
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8. Illustration 13 g01071454
8. Position barrel (43) in a suitable press. Install spring (47) in barrel (43). Position retaining
ring (46) on top of the spring.
Illustration 14 g01071453
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
9. Position Tooling (A) and the suitable press on top of the spring and inside of retaining ring
(46). Use Tooling (A) in order to depress the spring that is in barrel (43). Use Tooling (B) in
order to install retaining ring (46) that secures the spring in barrel (43). Remove Tooling
(A) .
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9. Illustration 15 g01071452
10. Install collar bearing (45) to pins (44) and barrel (43) .
Illustration 16 g01071451
11. Install pistons (42) to the original positions in retraction plate (41). Install pistons (42) and
retraction plate (41) to barrel (43). Pistons (42) must be installed to the original positions.
Illustration 17 g01071429
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10. 12. Position swashplate (39) to rotating group (40) .
Illustration 18 g01095360
13. Raise the temperature of bearing cone (38) .
14. Install bearing cone (38) onto shaft (37A) .
15. Install shaft (37A) and bearing cone (38) into swashplate (39) and rotating group (40) .
Illustration 19 g01095214
16. Install pump housing (37) onto bearing cone (38), swashplate (39), and rotating group (40).
Turn the pump housing over 180 degrees and hold the components in the pump housing.
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12. Illustration 22 g01095174
19. Install spring (32), piston (33), and coupling (31) .
Illustration 23 g01095172
Note: Port plate (30) has a locating pin.
20. Install O-ring seal (27), O-ring seals (28), bearing cup (29), and port plate (30) .
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13. Illustration 24 g01095171
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
21. Install head (25) and bolts (26) .
Illustration 25 g01095170
22. Install spacer (24) .
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14. Illustration 26 g01095169
23. Install bearing cup (22) and O-ring seal (23) .
Illustration 27 g01095167
24. Install seal (21) into cover (15) .
25. Use Tooling (C) in order to install retaining ring (20) .
Illustration 28 g01095166
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15. 26. Raise the temperature of bearing cone (17) and bearing cone (19) .
27. Install cover (15), bearing cup (16), bearing cone (17), spacer (18), and bearing cone (19)
onto shaft assembly (13) .
Illustration 29 g01095164
28. Use Tooling (E) in order to install retaining ring (14) .
Illustration 30 g01095163
29. Install shaft assembly (13) and bolts (12) .
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16. Illustration 31 g01095161
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
30. Install spool (6) and plug (5) .
31. Install retainer (7), spring (8), retainer (9), spring (10), and adjuster (11) into valve (2) .
Illustration 32 g01095160
32. Install O-ring seals (4) onto valve (2) .
33. Repeat Steps 30 through Steps 32 for valve (3) .
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17. Illustration 33 g01095158
34. Install valve (3), valve (2), and bolts (1) .
End By: Install the piston pump. Refer to Disassembly and Assembly, "Implemtent Pump -
Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Tue Jan 14 12:40:16 UTC+0800 2020
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18. Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D8T TRACK-TYPE TRACTOR J8B
Configuration: D8T TRACK-TYPE TRACTOR J8B00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
D8T Track-Type Tractor Machine Systems
Media Number -RENR7480-03 Publication Date -01/08/2008 Date Updated -11/08/2008
i02179140
Implement Pump - Install
SMCS - 5073-012
Installation Procedure
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
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20. Illustration 1 g01102950
1. Attach a suitable lifting device to implement pump (16) and position implement pump (16).
The weight of implement pump (16) is approximately 75 kg (165 lb). Install bolts (15) .
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21. Illustration 2 g01102943
2. Connect hose assembly (14). Position slip joint (12) and install bolts (13) .
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22. Illustration 3 g01102918
3. Position cover (10) and install bolts (11). Connect hose assembly (9) .
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23. Illustration 4 g01102895
4. Position manifold (8) and install bolts (7). Connect hose assemblies (4) and (6). Install clip
(5) .
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