Caterpillar Cat 340D2 L Excavator (Prefix HHK) Service Repair Manual (HHK00001 and up).pdf

Service Repair Manual
Models
340D2 L Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 340D2 L EXCAVATOR HHK
Configuration: 340D2 L Excavator HHK00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
330D, 336D, 336D2, 340D and 340D2 Excavators and 336D MHPU Mobile Hydraulic
Power Unit Machine Systems
Media Number -RENR8648-30 Publication Date -01/03/2015 Date Updated -15/08/2018
i05271119
Final Drive - Disassemble
SMCS - 4050-015
S/N - GGH1-UP
S/N - HHK1-UP
S/N - J6D1-UP
S/N - JRX1-UP
S/N - NBN1-UP
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 3
B 8T-0226 Bolt 2
C
5F-7366 Forcing Screw 1
1A-1935 Full Nut 1
D 150-1782 Crossblock 1
E 5P-8713 Plate 1
F 1P-0510 Driver Gp 1
G 384-8910 Torque Wrench 1
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340D2 L Excavator HHK00001-UP (MACHINE) POWERED BY C9 Engine(SEBP65...
2020/12/3
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

3S-6224 Electric Hydraulic Pump Gp 1
8H-8535 1 1/4 Socket 1
H 1U-9895 Crossblock 1
J 126-7183 Crossblock 1
K c M14 X 2.0 X 254mm -
L 417-6239 Lifting Adapter 1
Illustration 1 g03032222
1. Use Tooling (A) and a suitable lifting device in order to position final drive (1) . The weight
of final drive (1) is approximately 435 kg (960 lb).
2. Remove bolts (2) .
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3. Use Tooling (B) and suitable pry bar to remove flange (3) . Remove o-ring (4) from flange
(3) .
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Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
4. Use Tooling (C) , (D) , (E) , and (F) to compress spring retainer (6) .
5. Remove retaining ring (5) .
6. Remove spring retainer (6) .
7. Remove springs (7) and piston (8) . Remove gear (12) (not shown) .
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8. Remove discs (9) and plates (10) .
9. Remove seals (11) and gear (12) .
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10. Use Tooling (A) and a suitable lifting device to reposition final drive (1) . The weight of
final (1) is approximately 435kg (960 lb).
11. Remove bolts (14) . Use a suitable lifting device to remove cover (13) .
12. The weight of cover (13) is approximately 73 kg (160 lb).
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13. Remove o-ring (15) from cover (13) .
14. Remove gear assembly (16) .
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15. Remove gear (18) from shaft (17) .
16. Remove gear assembly (19) .
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17. Remove gear (20) .
18. Use Tooling (G) to remove bolts (21) . Bolts (21) may need the temperature raised for
assisting removal. (Note: disregard bolts (21) .)
19. Remove housing (22) .
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20. Remove gear assemblies (23) .
21. Compress retaining ring (25) in order to remove plate assembly (24) .
22. Use Tooling (C) , (H, and) (J) in order to separate housing (26) from hub (27) .
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340D2 L Excavator HHK00001-UP (MACHINE) POWERED BY C9 Engine(SEBP...
2020/12/3

23. Remove race (28) and use Tooling (A) and a suitable lifting device to lift off housing (26) .
The housing (26) weighs approximately 113 kg (250 lb)
24. Remove seal (29) and bearing assemblies (30) .
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25. Remove race (32) and seal (31) .
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
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12/12
2020/12/3

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 340D2 L EXCAVATOR HHK
Configuration: 340D2 L Excavator HHK00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
330D, 336D, 336D2, 340D and 340D2 Excavators and 336D MHPU Mobile Hydraulic
Power Unit Machine Systems
Media Number -RENR8648-30 Publication Date -01/03/2015 Date Updated -15/08/2018
i06252413
Final Drive - Disassemble - Type-Two
SMCS - 4050-015
S/N - B6H568-UP
S/N - DTS1-UP
S/N - EAH1-UP
S/N - EDX1-UP
S/N - EFT1-UP
S/N - ERN275-UP
S/N - FAR1-UP
S/N - FFK1-UP
S/N - GGE1-UP
S/N - GGH1-UP
S/N - HHK1-UP
S/N - J2F1-UP
S/N - JBT1-UP
S/N - JLP299-UP
S/N - JTN1-UP
S/N - JWR1-UP
1/19
2020/12/3

S/N - KDJ1-UP
S/N - LMG1-UP
S/N - LRM1-UP
S/N - M3M1-UP
S/N - M3N1-UP
S/N - M4T1-UP
S/N - MDS1-UP
S/N - MEY179-UP
S/N - MPL1-UP
S/N - MWP1-UP
S/N - MYG1-UP
S/N - MYP1-UP
S/N - NBD169-UP
S/N - NBN1-UP
S/N - PGW1-UP
S/N - PPN1-UP
S/N - PRF1-UP
S/N - PTB1-UP
S/N - RAS573-UP
S/N - T2Y226-UP
S/N - THJ1-UP
S/N - TLY1-UP
S/N - W3K1-UP
S/N - WDC1-UP
S/N - WET1-UP
S/N - WRK1-UP
2/19
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S/N - XBH1-UP
S/N - YCF1-UP
S/N - ZCT1-UP
S/N - ZML1-UP
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description QTY
A 439-3940 Link Brackets 3
B 439-3939 Link Bracket 2
C 154-6183 Forcing Bolts 3
Start By:
A. Remove the final drive and the travel motor.
1. Put an alignment mark across the sections of the final drive for assembly purposes. The
parts must be reinstalled in the original locations.
Note: The weight of the entire final drive assembly is approximately 550 kg (1200 lb).
2. Attach Tooling (A) and a suitable lifting device to cover (2) . The weight of cover (2) is
approximately 32 kg (70 lb). Remove bolts (1) and cover (2) .
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3. Remove bolts (3) . Remove gear (5) . Remove plate (6) . Remove plugs (4) from cover (2) .
4. Remove O-ring seal (7) from plugs (4) .
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5. Remove sun gear (8) , spacer (9) , and planetary gear assembly (10) .
6. Remove retaining ring (11) , washer (12) , planetary gear (13) , roller bearing (15) , and
washer (16) from carrier assembly (17) .
7. Repeat Step 6 for the remaining two gear assemblies.
8. Remove retaining ring (14) and sun gear (18) from carrier assembly (17) .
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9. Use a suitable press to remove the shafts from carrier assembly (17) .
10. Attach Tooling (A) and a suitable lifting device to planetary gear assembly (19) . The
weight of planetary gear assembly (19) is approximately 48 kg (105 lb). Remove planetary
gear assembly (19) .
11. Remove spacer (20) .
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12. Drive spring pin (21) into planetary shaft (22) with a suitable hammer and a suitable punch.
13. Remove planetary shaft (22) , washer (24) , roller bearing (25) , planetary gear (26) , and
washer (27) from the planetary gear assembly (19) .
14. Remove spring pin (21) from planetary shaft (22) with a suitable hammer and a suitable
punch.
15. Remove retaining ring (23) and sun gear (28) from planetary gear assembly (19) .
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16. Attach Tooling (A) and a suitable lifting device to planetary gear assembly (29) . The
weight of planetary gear assembly (29) is approximately 38 kg (85 lb). Remove planetary
gear assembly (29) .
17. Drive spring pin (30) into planetary shaft (31) with a suitable hammer and a suitable punch.
18. Remove planetary shaft (31) , washer (32) , roller bearings (33) , planetary gear (34) , and
washer (35) from the planetary gear assembly (29) .
19. Remove spring pin (30) from planetary shaft (31) with a suitable hammer and a suitable
punch.
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20. Attach Tooling (A) and a suitable lifting device to ring gear (36) . The weight of ring gear
(36) is approximately 66 kg (146 lb). Remove ring gear (36) .
21. Remove O-ring seal (37) from sprocket housing (38) .
Note: Mark the orientation of coupling gear (40) for assembly purposes.
22. Remove bolts (39) from coupling gear (40) . Use Tooling (C) in order to remove coupling
gear (40) from the motor housing.
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23. Remove shims (41) from the motor housing.
Note: Upper bearing cone (42) and lower bearing cone (43) are a slip fit on the motor
housing. While you remove sprocket housing (38) from the motor housing, upper bearing
cone (42) may stay with the sprocket housing, or upper bearing cone (42) may stay on the
motor housing.
24. Attach Tooling (B) and a suitable lifting device to sprocket housing (38) . The weight of
sprocket housing (38) is approximately 109 kg (240 lb). Remove sprocket housing (38) and
upper bearing cone (42) .
10/19
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25. Remove dowels (45) from the motor housing.
26. Remove Duo-Cone seal (44) from the motor housing.
27. If lower bearing cone (43) remained on the motor housing, then remove the lower bearing
cone.
28. Remove Duo-Cone seal (46) from the sprocket housing.
29. If upper bearing cone (42) remained on the sprocket housing, then remove the upper bearing
cone.
30. Remove the bearing cups from the sprocket housing.
(Type 1) Disassembly Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
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A 439-3940 Link Brackets 3
B 154-6183 Forcing Bolts 3
C 439-3941 Link Brackets 3
Start By:
A. Remove the final drive and the travel motor.
1. Attach Tooling (A) and a suitable lifting device to cover (2) . The weight of cover (2) is
approximately 20 kg (45 lb). Remove bolts (1) and cover (2) .
2. Remove plate (3) from cover (2) .
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3. Remove sun gear (4) , spacer (5) , and planetary gear assembly (6) .
4. Remove retaining ring (7) , washer (8) , planetary gear (9) , roller bearing (11) , and washer
(12) from carrier assembly (13) .
5. Remove retaining ring (10) and sun gear (14) from carrier assembly (13) .
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Caterpillar Cat 340D2 L Excavator (Prefix HHK) Service Repair Manual (HHK00001 and up).pdf

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Caterpillar Cat 340D2 L Excavator (Prefix HHK) Service Repair Manual (HHK00001 and up).pdf