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Product: EXCAVATOR
Model: 314E LCR EXCAVATOR ZJT
Configuration: 314E LCR Excavator ZJT00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
314E Excavator Machine Systems
Media Number -KENR9852-02 Publication Date -01/11/2013 Date Updated -12/11/2013
i05200463
Final Drive and Travel Motor - Assemble
SMCS - 4050-016; 4351-016
Specification
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3. Illustration 1 g02791698
Table 1
Specifications for 357-1821 Piston Motor Gp
Item Qty Part Specification Description
Lightly lubricate the sliding surfaces with clean hydraulic oil.
1 7
094-1882
Plug
Apply, Loctite high flex GM to the threads.
Torque to 13 ± 2 N·m (115 ± 18 lb in).
2 1
7Y-4224
Orifice
Torque to 13 ± 2 N·m (115 ± 18 lb in).
3 9
8T-4944
Bolt
Torque to 294 ± 20 N·m (217 ± 15 lb ft).
If bolts cannot be assembled, loosen the relief valve group and then
tighten the relief valve group to 177 ± 18 N·m (130 ± 13 lb ft).
Illustration 2 g02791876
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4. Table 2
Item Qty Part Specification Description
4 2 7Y-4224 Orifice Torque to 13 ± 2 N·m (115 ± 18 lb in)
5 1 094-1882 Plug Torque to 13 ± 2 N·m (115 ± 18 lb in)
6 1 087-4786 Adapter Torque to 78 ± 8 N·m (58 ± 6 lb ft)
7 1 9S-8006 O-Ring Plug Torque to 78 ± 8 N·m (58 ± 6 lb ft)
8 1 165-5850 Spring Free length is 50.7 mm (2.00 inch)
9 2 304-3961 Relief Valve Gp Torque to 177 ± 18 N·m (130 ± 13 lb ft)
10 1 4T-1860 Shuttle Valve Gp Torque to 32 ± 3 N·m (283 ± 27 lb in)
11 8 8T-9515 Bolt Torque to 60 ± 5 N·m (44 ± 4 lb ft)
12 2 199-5152 Spring
Length under test force is 37 mm (1.5 inch).
Test force is 214.7 ± 21.5 N (48.3 ± 4.8 lb)
Free length after test is 49.1 mm (1.93 inch)
13 1 087-5631 Orifice Torque to 13 ± 2 N·m (115 ± 18 lb in)
14 3 9S-8004 O-Ring Plug Torque to 31 ± 3 N·m (274 ± 27 lb in)
15 2 119-5362 Spring
Length under test force is 19 mm (0.74803 inch).
Test force is 2.50 ± 0.29 N (0.56 ± 0.07 lb)
Free length after test is 20 mm (0.8 inch)
16 2 119-5364 Plug Torque to 78 ± 8 N·m (58 ± 6 lb ft)
Assembly Procedure
Table 3
Required Tools
Tool Part Number Part Description Qty
A 138-7573 Link Bracket 3
B 1P-2420 Transmission Repair Stand 1
E 1P-0510 Driver Gp 1
F 8H-0663 Bearing Puller Gp 1
G 1P-1863 Retaining Ring Pliers 1
H 9U-7346 Spanner Wrench As 1
K 1U-7558 Mounting Adapter Gp(1)
1
L - Loctite 271 -
M - Loctite High Flex GM -
N 169-0503 Installation Kit 1
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5. P 1U-6434 Duo-Cone Seal Installer As 1
Q 4C-3761 C-Clamp 2
R FT-2766 Rolling Torque Bar 1
S - Loctite 272 -
(1)
The bent plates for the mounting adapter may be modified so that the mounting adapter can be assembled to the
housing.
Assembly Procedure for the Travel Motor
Illustration 3 g01407166
1. Use Tooling (E) to install lip seal (91) into the body assembly.
Illustration 4 g01407561
2. Use Tooling (E), Tooling (F), and a suitable press to install bearing assembly (90) onto shaft
assembly (88).
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6. Illustration 5 g01407144
3. Use Tooling (G) to install retaining ring (89) on shaft assembly (88).
Illustration 6 g01407580
4. Use a suitable soft faced hammer to install shaft assembly (88) into body assembly (84).
Illustration 7 g01407608
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7. 5. Use two persons to position body assembly (84) and the shaft assembly onto Tooling (B). The
total weight of body assembly (84) is approximately 42 kg (93 lb).
6. Use Tooling (N) to clean Duo-cone seal (85) before installation. Use Tooling (P) to install Duo
-cone seal (85) onto body assembly (84). Refer to Disassembly and Assembly, "Duo-Cone
Conventional Seals - Install".
Illustration 8 g01407089
7. Lower the temperature of both bearing cups (87) in order to install both bearing cups (87) into
housing (83).
Illustration 9 g01407681
8. Use a suitable brass punch in order to install both bearings (86) in the housing assembly.
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8. Illustration 10 g01407698
9. Use Tooling (N) to clean Duo-cone seal (85) before installation. Apply a thin coat of clean oil
onto the mating surface of the metal seal. Refer to Disassembly and Assembly, "Duo-Cone
Conventional Seals - Install".
10. Use Tooling (P) to install Duo-cone seal (85) on housing (83).
Illustration 11 g01406906
Note: Do not damage the Duo-Cone seals during the assembly of the ring gear and the motor
housing. After the assembly of the ring gear on the motor housing, there will be a small gap
between the components. The gap is caused by the Duo-Cone seals. The gap will be eliminated
in a future step.
11. Use a suitable lifting device to position body assembly (84) onto Tooling (B). The weight of
body assembly (84) is approximately 35 kg (77 lb).
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9. 12. Use Tooling (A) and a suitable lifting device to position housing assembly (83) onto body
assembly (84).
Illustration 12 g01408205
13. Use Tooling (Q) to secure body assembly (84) to housing assembly (83).
Illustration 13 g01406886
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10. Illustration 14 g01406885
Note: During the following Step, use of Tooling (H) may cause the components and Tooling
(B) to rotate. Use Tooling (K) to prevent Tooling (B) and the components that are mounted on
Tooling (B) from rotating.
14. Install nut (82). Use Tooling (H) to tighten nut (82) to a torque of 10 N·m (89 lb in).
15. Remove Tooling (Q).
16. Loosen nut (82) by 1/4 turn.
Illustration 15 g01407681
17. Rotate housing assembly (83) at least four times in order to preload bearings (86).
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11. Illustration 16 g01408683
18. Use Tooling (R) and a suitable torque wrench to measure the rotating torque of housing
assembly (83).
19. Tighten nut (82) to achieve an additional rolling torque of 21 N·m (16 lb ft) to the torque value
that was taken in Step 18. Tighten nut (82) to this new torque value.
Illustration 17 g01406882
20. Apply Tooling (L) to the threads of bolt (80). Install plate (81) and bolt (80).
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13. Illustration 21 g01406822
23. Install sun gear (72).
24. Apply Tooling (L) to the threads of bolts (73).
25. Install plate (74) and bolts (73). Tighten bolts (73) to a torque of 70 ± 15 N·m (52 ± 11 lb ft).
Illustration 22 g01406789
26. Install bearing (71) and planetary gear (70) onto the shaft of carrier (69). Repeat for the
remaining bearings (71) and for the remaining planetary gears (70).
Illustration 23 g01406400
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14. 27. Use Tooling (A) and a suitable lifting device to install carrier assembly (69), planetary gear
assembly (70), and bearing assembly (71) as a unit.
Illustration 24 g01406397
28. Install sun gear (68).
Illustration 25 g01406386
29. Install plate (67). Apply Tooling (L) to the threads of bolts (66). Install bolts (66). Tighten bolts
(66) to a torque of 70 ± 15 N·m (52 ± 11 lb ft).
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15. Illustration 26 g01406376
30. Thoroughly clean the machined surface of the final drive and cover (64). Apply Tooling (M)
onto the machined surface of cover (64). Install cover (64).
31. Apply Tooling (L) to the threads of bolts (65). Install bolts (65). Tighten bolts (65) to a torque
of 30 ± 7 N·m (22 ± 5 lb ft).
32. Check the O-rings of plugs (63). Replace the O-rings, if necessary. Install plugs (63). Tighten
plugs (63) to a torque of 80 ± 10 N·m (59 ± 7 lb ft).
33. Use a suitable lifting device to rotate the assembled component by 180 degrees. Place the
assembled component onto Tooling (B) so that cover (64) is on the bottom.
Assembly Procedure for the Travel Motor
Illustration 27 g01406338
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16. Illustration 28 g01406329
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.
1. Install springs (62).
2. Install pistons (60) onto springs (62). Install keys (61).
Illustration 29 g01406263
3. Install cam plate (59). Make sure that the thick end of cam plate (59) is near the opening that is
across body (43).
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17. Illustration 30 g01406210
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.
4. Install springs (58), spacer (57), and retainer (56) onto barrel (53).
Illustration 31 g01406180
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18. 5. Install pistons (54) in retainer (55). Align the identification marks that were made during the
disassembly procedure so that the component is installed in the original position.
Illustration 32 g01406117
6. Apply a thin layer of clean oil onto the cam, the barrel, and the shaft.
7. Install barrel (53) into the body.
8. Apply a thin layer of clean oil on four separator plates (51) and on four friction plates (52).
Note: Install the friction plates and the separator plates in alternating order.
9. Make sure that you install one of four friction plates (52) first, and then install one of four
separator plates (51). Alternately install remaining friction plates (52) and separator plates (51).
Illustration 33 g01405885
10. Check O-ring seal (49) for wear or for damage. Replace the O-ring seal, if necessary. Check
backup ring (50) for wear or for damage. Replace the backup ring, if necessary. Install O-ring
seal (49) and backup ring (50) into guide (48).
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19. Illustration 34 g01437358
Illustration 35 g01405867
11. In order to prevent damage to O-ring seal (48), place a 0.025 mm (0.0010 inch) shim on the
opening that is across body (43).
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20. Illustration 36 g01405855
12. Check O-ring seals (45) and (46) for wear or for damage. Replace the O-ring seals, if
necessary. Check backup rings (44) and (47) for wear or for damage. Replace the backup rings,
if necessary.
13. Install O-ring seals (45) and (46) in piston (42). Install backup rings (44) and (47) in piston
assembly (42).
14. Apply a thin layer of the lubricant that is being sealed to the surface of the body that will
contact the piston.
Illustration 37 g01437375
15. Use two suitable prybar to install piston assembly (42), as shown.
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21. Illustration 38 g01405794
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.
16. Install springs (41) and O-ring seal (40).
Installation of Counterbalance Valve
Note: Check all the O-ring seals for wear or for damage. Replace all the O-ring seals with new O-
ring seals, if necessary.
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22. Illustration 39 g01437542
1. Lower the temperature of bearing (7). Install bearing (7).
2. Install valve plate (5) and O-ring seals (6).
Illustration 40 g01405633
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.
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24. 3. Check O-ring seal (37) for wear or for damage. If necessary, replace O-ring seal (37). Install O-
ring seal (37) on plug (36).
4. Install piston (39), spring (38), and plug (36) in the housing. Tighten plug (36) to a torque of
78 ± 8 N·m (58 ± 6 lb ft)
.
Illustration 41 g01405345
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.
5. Apply Tooling (S) to the threads of valve (32). Install ball (34), spring (33), and valve (32) in
one end of spool (35). Tighten valve (32) to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Repeat for
the other end of spool (35).
Illustration 42 g01405299
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25. Illustration 43 g01405284
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.
6. Install spool assembly (31), guides (30), and springs (29).
7. Install the O-ring seals and covers (28). Tighten the bolts for covers (28) to a torque of
60 ± 9 N·m (44 ± 7 lb ft).
Illustration 44 g01405243
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26. 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.
Note: Seat (13) is press fit onto valve (17). If seat (13) or valve (17) are damaged, both seat
(13) and valve (17) must be replaced as a unit.
8. Install backup ring (23) and O-ring seal (24) on piston (25).
9. Install piston (25), valve (21), and spring (16) in valve (17).
10. Install O-ring seal (18) and backup ring (19) into stopper (26). Install stopper (26).
11. Install screw (27). Install nut (20). Tighten nut (20) to a torque of 130 ± 13 N·m (96 ± 10 lb ft).
12. Install O-ring seal (22). Install O-ring seal (15) and backup ring (14).
13. Repeat Step 8 through Step 12 for the remaining relief valves.
Illustration 45 g01405232
14. Install assembled relief valve assemblies (12). Tighten relief valve assemblies (12) to a torque
of 177 ± 18 N·m (131 ± 13 lb ft).
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