Caterpillar Cat 631K WHEEL TRACTOR (Prefix WT6) Service Repair Manual Instant Download

1
Product WHEEL TRACTOR Model 631K WHEEL TRACTOR
WT6 Configuration 631K OEM Wheel-Tractor Scraper
WT600001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly 631K OEM Power
Train Media Number -M0087696-00 Publication Date
-01/11/2017
Date Updated -01/11/2017
i04351575
Torque Converter - Disassemble - Scraper SMCS -
3101-015 Disassembly Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Brackets 3
B 1P-2420 Transmission Repair Stand 1
C 1P-0520 Driver Gp 1
D 8H-0663 Bearing Puller Gp 1
E 1P-2322 Combination Puller 1
E 1P-0546 Puller Jaw 1
E 1P-0510 Driver Gp 1
F 1P-0074 Slide Hammer Puller Gp 1
Start By a. Separate Torque Converter,
Transmission, and Transfer Gear.
2
Illustration 1
g02477139

• Illustration 2 g02477145
• Attach Tooling (A) and a suitable lifting device
  to housing assembly (2) . Reposition housing
  assembly (2) onto Tooling (B). The weight of
  housing assembly (2) is approximately 73 kg (160
  lb).
• Remove bolts (1) and lift housing assembly (2)
  from torque converter assembly (3).

Illustration 3 g02477249 3. Reposition torque
converter assembly (3) on Tooling (B) as shown.
The weight of torque converter assembly (3) is
approximately 34 kg (76 lb).
3
4. Remove bolts (4).
Illustration 4 g02477847 5. Attach Tooling (A)
and a suitable lifting device to cover assembly
(5). Remove cover assembly (5) from torque
converter assembly (3).
Illustration 5
g02494878
6. Remove clutch piston (6).
Illustration 6
g02495236
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7. Remove friction disk (7). Remove bolts (10)
and shaft retainer (8). Remove hub (9) and seal
rings.
Illustration 7
g02487237
Illustration 8 g02491136 8. Remove bolts (12).
Remove bearing retainer (11). Remove retaining
ring (13). Remove upper bearing race (16).
Remove retaining ring (14). Remove bearing (15).
Illustration 9 g02487278 9. Reposition torque
converter assembly (3) on Tooling (B) as shown.
The weight of torque converter assembly (3) is
approximately 34 kg (76 lb).
6
10. Remove bolts (17).
Illustration 10 g02494482 11. Attach Tooling (A)
to impeller wheel assembly (18). Remove impeller
wheel assembly (18). The weight of impeller
wheel assembly (18) is approximately 34 kg (76
lb).
Illustration 11 g02484296 12. Remove retaining
ring (19) from bearing (20).
Illustration 12
g02488758
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13. Use Tooling (E) to separate shaft assembly
(21) from bearing assembly (20) and carrier
assembly (22).
Illustration 13
g02492076
Illustration 14 g02488997 14. Remove bolts (23).
Use Tooling (F) to remove stator assembly (24)
from carrier assembly (22) and impeller wheel
assembly (18).
Illustration 15
g02489038
8
Illustration 16 g02489042 15. Remove bolts (25).
Use Tooling (C) to remove carrier assembly (22)
from impeller wheel assembly (18).
Illustration 17 g02489047 16. Using Tooling (C)
and a suitable press to remove bearing (26) and
gear (27) from carrier assembly (22).
Illustration 18
g02489056
17. Remove seal ring (28).
9
Illustration 19 g02492176 18. Remove seal rings
(29). Remove retaining ring (30) from shaft
assembly (21).
Illustration 20
g02489277
Illustration 21
g02489280
19. Install Tooling (D). Note Tooling (D) must
be seated on the shoulder of turbine (31) in
order to support turbine and prevent damage.
Tooling (D) must not contact the splines on shaft
(21).
10
20. Use a suitable press to remove shaft assembly
(21) from turbine (31). Remove bearing race (32)
and the spacer from turbine (31).
Illustration 22
g02492441

1. Position housing assembly (2) as shown.
2. Remove bolts (33) and gear (34).

Illustration 23 g02492458 23. Remove retaining
rings (35) from gear (34).
Illustration 24
g02492476
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24. Use a suitable press and Tooling (C) in order
to remove bearing (36) and shaft from gear (34).
12
Product WHEEL TRACTOR Model 631K WHEEL TRACTOR
WT6 Configuration 631K OEM Wheel-Tractor Scraper
WT600001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly 631K OEM Power
Train Media Number -M0087696-00 Publication Date
-01/11/2017
Date Updated -01/11/2017
i04578058
Torque Converter - Assemble - Scraper SMCS -
3101-016 Assembly Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Brackets 3
B 1P-2420 Transmission Repair Stand 1
C 1P-0520 Driver Gp 1
G - Threaded Rod 3/8-16 by 4.00 1
H - Locktite 242 1
NOTICE Keep all parts clean from
contaminants. Contaminants may cause rapid wear
and shortened component life.
13
Illustration 1 g02492476 1. Use a suitable press
and Tooling (C) to install bearing (36) and shaft
into gear (34).
Illustration 2 g02492458 2. Install retaining
ring (35) on each side of gear (34) .
Illustration 3
g02492441
3. Position housing assembly (2) as shown.
14
4. Install gear (34). Install bolts (33) .
Illustration 4 g02492617 5. Lower the
temperature of shaft assembly (21). Install
retaining ring (30). Install shaft assembly (21)
in the turbine (31) until ring (30) rests on the
turbine (31). Install seal rings (29) .
Illustration 5 g02492679 6. Install the spacer.
Raise the temperature of bearing race (32).
Install bearing race (32) on shaft assembly (21)
.
15
Illustration 6
g02489056
7. Install seal ring (28) .
Illustration 7
g02482957
8. Install gear (27) to carrier assembly (22) .
Illustration 8 g02482978 9. Raise the
temperature of bearing (26). Install bearing (26)
on carrier assembly (22) .
16
Illustration 9
g02483898

• Illustration 10 g02483903
• Position lower part of carrier assembly (22)
  under impeller wheel assembly (18) .
• Install Tooling (G) to align carrier assembly
  (22) with impeller wheel assembly (18) .

Illustration 11
g02483983
17
12. Install bolts (25). Tighten bolts (25) to a
torque of 50 7 Nm (37 5 lb ft).
Illustration 12 g02492076 13. Position stator
assembly (24) on carrier assembly (22). Apply
Tooling (H) to bolts (23). Install bolts (23).
Tighten bolts (23) to a torque of 40 5 Nm (30
4 lb ft).
Illustration 13 g02484278 14. Install carrier
assembly (22) and impeller wheel assembly (18) on
turbine (31) and shaft assembly (21) .
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Illustration 14 g02484377 Note Install bearing
(20) with Radius Side (X) facing down, toward
carrier assembly (22).
Illustration 15 g02484296 15. Raise the
temperature of bearing (20). Install bearing.
Install retaining ring (19) .
Illustration 16
g02487297
19
16. Attach Tooling (A) and a suitable lifting
device to impeller wheel assembly (18). The
weight of impeller wheel assembly (18) is
approximately 34 kg (76 lb). Install impeller
wheel assembly (18) into torque converter
assembly (3) .

• Illustration 17 g02487278
• Install bolts (17). Tighten bolts (17) to a
  torque of 30 5 Nm (22 4 lb ft).
• Reposition torque converter assembly (3) on
  Tooling (B). The weight of torque converter
  assembly (3) is approximately 64 kg (142 lb).

Illustration 18 g02491136 19. Lower the
temperature of bearing (15) and install bearing.
Install retaining ring (14). Install upper
bearing race (16) and retaining ring (13) .
20
Illustration 19 g02487237 20. Install bearing
retainer (11). Install bolts (12). Tighten bolts
(12) to a torque of 50 7 Nm (37 5 ft).
Illustration 20 g02495236 21. Install hub (9).
Install shaft retainer (8) and the seal rings.
Install bolts (10). Tighten bolts (10) to a
torque of 50 7 Nm (37 5 lb ft). Install
friction disk (7) .
Illustration 21
g02494878
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22. Install clutch piston (6) .
Illustration 22 g02495556 Note When lowering
cover assembly (5) down over clutch piston (6),
align pins in cover assembly (5) into notch on
clutch piston (6).
Illustration 23 g02477847 23. Attach Tooling (A)
and a suitable lifting device to cover assembly
(5). Install cover assembly (5) into torque
converter assembly (3) .
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Illustration 24 g02494257 24. Install bolts (4).
Tighten bolts (4) to a torque of 50 7 Nm (37
5 lb ft).
Illustration 25
g02477145
Illustration 26 g02477139 25. Attach Tooling (A)
and a suitable lifting device to housing assembly
(2). The weight of housing assembly (2) is
approximately 119 kg (263 lb). Lower housing
assembly (2) onto torque converter assembly (3).
Install bolts (1) .
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End By Connect the torque converter,
transmission, and transfer gear.
24
Product WHEEL TRACTOR Model 631K WHEEL TRACTOR
WT6 Configuration 631K OEM Wheel-Tractor Scraper
WT600001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly 631K OEM Power
Train Media Number -M0087696-00 Publication Date
-01/11/2017
Date Updated -01/11/2017
i06636123
Torque Converter - Assemble SMCS -
3101-016 Assembly Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 2P-8312 Retaining Ring Pliers 1
B 1P-0510 Driver Group 1
Illustration 1 g00528674 1. Use Tooling (B) and
a suitable hydraulic press to install sleeve
bearing (33) into flange (32).
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Illustration 2 g00528612 2. Position flange (32)
and install bolts (31) onto housing (9). Tighten
bolts (31) to a torque of 120 15 Nm (89 11
lb ft).
Illustration 3 g00525322 3. Install thrust
bearing (29) and thrust race (30) into housing
(9).
Illustration 4 g00525321 4. Install turbine (23)
and clamp ring (28) onto hub (3).
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Illustration 5 g00525320 5. Install bolts (27)
into turbine (23). Tighten bolts (27) to a torque
of 50 7 Nm (37 5 lb ft). Install thrust
race (26) onto hub (3).
Illustration 6 g01102582 6. Install thrust race
(25) and thrust bearing (24) onto hub (3).
Illustration 7 g00525315 7. Install turbine (23)
and hub (3) as a unit into housing (9).
27
Illustration 8 g00528953 8. Use Tooling (B) and
a suitable press to install sleeve bearing (22)
into carrier assembly (12). Install thrust
bearing (21) onto carrier assembly (12).
Illustration 9 g01110492 9. Install side plate
(20) to stator (13). Use Tooling (A) to install
retaining ring (19) to stator (13).
Illustration 10 g01102579 10. Use Tooling (B)
and a suitable hydraulic press to install
freewheel cam (18) into stator (13).
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11. Install stator (13) to carrier assembly (12).
Install freewheel springs (16) and freewheel
rollers (17) to freewheel cam (18). Always
install new freewheel springs (16) and freewheel
rollers (17). Install freewheel springs (16) with
the maximum number of loops in freewheel springs
(16) to the outside of freewheel cam (18). Stator
(13) should turn freely in the clockwise
direction. Stator (13) should not turn freely in
the counterclockwise direction.
Illustration 11 g01110494 12. Install thrust
race (15) to stator (13). Use Tooling (A) to
install retaining ring (14) onto stator (13).
Illustration 12 g00525308 13. Install carrier
assembly (12) and stator (13) as a unit into
housing (9).
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Illustration 13 g01108447 14. Install thrust
bearing (11) and seal ring (12A) onto carrier
assembly (12).
Illustration 14 g00525305 15. Install impeller
hub (8) to impeller (5). Install thrust race (10)
onto impeller (5).

• Illustration 15 g01102576
• Install clamp plate (7) and bolts (6) onto
  impeller hub (8). Tighten bolts (6) to a torque
  of 50 7 Nm (37 5 lb ft).
• Install bolts (4) into impeller (5). Tighten
  bolts (4) to a torque of 50 7 Nm (37 5 lb
  ft).

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• Illustration 16 g00525299
• Use Tooling (B) and a suitable press to install
  the sleeve bearing in carriage support assembly
  (2). Install the sleeve bearing until the sleeve
  bearing is flush with the outside machined
  surface of carriage support assembly (2).
• Install carriage support assembly (2) onto hub
  (3). Use Tooling (A) to install retaining ring
• onto carriage support assembly (2).
• End By
• a. Install the torque converter. Refer to
  Disassembly and Assembly, "Torque Converter -
  Install".

32
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friend! Thank you very much for reading. Enter
the link into your browser. The full manual is
available for immediate download. https//www.eb
ooklibonline.com