Caterpillar Cat 627H WHEEL TRACTOR (Prefix DBW) Service Repair Manual Instant Download.pdf

Service Repair Manual
Models
627H WHEEL TRACTOR

Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 627H WHEEL TRACTOR DBW
Configuration: 627H Wheel Tractor Scraper DBW00001-UP (MACHINE)
Disassembly and Assembly
621H, 623H and 627H Wheel Tractor-Scrapers Power Train
Media Number -KENR8883-02 Publication Date -01/06/2013 Date Updated -01/07/2013
i04496349
Torque Converter - Disassemble - Tractor
SMCS - 3101-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 2P-8312 Retaining Ring Pliers 1
B 1P-0510 Driver Group 1
C 6L-7283 Bolts 2
Start By:
a. Remove the torque converter.
Illustration 1 g01052899
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...

1. Use Tooling (A) in order to remove retaining ring (1) from carriage support assembly (2).
Remove carriage support assembly (2) from hub (3). Use Tooling (B) and a suitable press in
order to remove the sleeve bearing from carriage support assembly (2).
2. Remove bolts (4) and the washers from torque converter impeller (5). Remove bolts (6), the
washers, and clamp plate (7) from impeller hub (8).
3. Install Tooling (C) in torque converter impeller (5). Use Tooling in order to remove torque
converter impeller (5) and impeller hub (8) from housing (9).
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4. Remove metal seal ring (10) from torque converter impeller (5). Remove impeller hub (8)
from torque converter impeller (5).
5. Remove thrust bearing (11) from carrier assembly (12).
6. Remove carrier assembly (12) and torque converter stator (13) as a unit from housing (9).
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7. Position carrier assembly (12) and torque converter stator (13), as shown. Use Tooling (A)
in order to remove retaining ring (14) from torque converter stator (13). Remove thrust race
(15) from torque converter stator (13).
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.
8. Remove freewheel rollers (16) and freewheel springs (17) from freewheel cam (18).
Remove torque converter stator (13) from carrier assembly (12).
9. Use Tooling (A) in order to remove retaining ring (19) from torque converter stator (13).
Remove side plate (20) from torque converter stator (13).
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10. Use Tooling (B) and a suitable press in order to remove freewheel cam (18) (not shown)
from torque converter stator (13).
11. Remove thrust bearing (21) from carrier assembly (12). Remove sleeve bearing (22) from
carrier assembly (12).
12. Remove torque converter turbine (23) and hub (3) as a unit from housing (9).
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13. Remove thrust bearing (24) and thrust race (25) from hub (3).
14. Position torque converter turbine (23), as shown. Remove thrust race (26) from hub (3). Put
an alignment mark on torque converter turbine (23) and hub (3) for installation purposes.
Remove bolts (27) from torque converter turbine (23).
15. Remove clamp ring (28) and torque converter turbine (23) from hub (3).
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16. Remove thrust bearing (29) and thrust race (30) from housing (9).
17. Remove bolts (31) and flange (32) from housing (9).
18. Remove sleeve bearing (33) from flange (32).
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sat May 1 21:47:10 UTC+0800 2021
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Shutdown SIS
Previous Screen
i04351575
Torque Converter - Disassemble - Scraper
SMCS - 3101-015
S/N - DBW1-UP
Disassembly Procedure
Table 1
Required Tools
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
1P-0546 Puller Jaw 1
1P-0510 Driver Gp 1
F 1P-0074 Slide Hammer Puller Gp 1
Start By:
a. Separate Torque Converter, Transmission, and Transfer Gear.
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1. 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).
2. Remove bolts (1) and lift housing assembly (2) from torque converter assembly (3).
3. Reposition torque converter assembly (3) on Tooling (B) as shown. The weight of torque
converter assembly (3) is approximately 34 kg (76 lb).
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4. Remove bolts (4).
5. Attach Tooling (A) and a suitable lifting device to cover assembly (5). Remove cover
assembly (5) from torque converter assembly (3).
6. Remove clutch piston (6).
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7. Remove friction disk (7). Remove bolts (10) and shaft retainer (8). Remove hub (9) and seal
rings.
8. Remove bolts (12). Remove bearing retainer (11). Remove retaining ring (13). Remove
upper bearing race (16). Remove retaining ring (14). Remove bearing (15).
9. Reposition torque converter assembly (3) on Tooling (B) as shown. The weight of torque
converter assembly (3) is approximately 34 kg (76 lb).
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10. Remove bolts (17).
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).
12. Remove retaining ring (19) from bearing (20).
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13. Use Tooling (E) to separate shaft assembly (21) from bearing assembly (20) and carrier
assembly (22).
14. Remove bolts (23). Use Tooling (F) to remove stator assembly (24) from carrier assembly
(22) and impeller wheel assembly (18).
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15. Remove bolts (25). Use Tooling (C) to remove carrier assembly (22) from impeller wheel
assembly (18).
16. Using Tooling (C) and a suitable press to remove bearing (26) and gear (27) from carrier
assembly (22).
17. Remove seal ring (28).
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18. Remove seal rings (29). Remove retaining ring (30) from shaft assembly (21).
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).
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20. Use a suitable press to remove shaft assembly (21) from turbine (31). Remove bearing race
(32) and the spacer from turbine (31).
21. Position housing assembly (2) as shown.
22. Remove bolts (33) and gear (34).
23. Remove retaining rings (35) from gear (34).
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24. Use a suitable press and Tooling (C) in order to remove bearing (36) and shaft from gear
(34).
Sat May 1 21:48:07 UTC+0800 2021
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Shutdown SIS
Previous Screen
i07459845
Torque Converter - Assemble - Tractor
SMCS - 3101-016
Assembly Procedure
Table 1
Required Tools
A 2P-8312 Retaining Ring Pliers 1
B 1P-0510 Driver Group 1
D 8T-5096 Dial Indicator Group 1
1. Use Tooling (B) and a suitable press to install sleeve bearing (33). Install sleeve bearing
(33) to flange (32).
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2. Install bolts (31) and flange (32) to housing (9). Tighten bolts (31) to a torque of
120 ± 15 N.m (89 ± 11 lb ft).
3. Install thrust race (30) and thrust bearing (29) to housing (9).
4. Install torque converter turbine (23) and clamp ring (28) to hub (3).
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5. Install bolts (27) to torque converter turbine (23). Tighten bolts (27) to a torque of
50 ± 7 N.m (37 ± 5 lb ft).
6. Install thrust race (25) and thrust bearing (24) to hub (3).
7. Install thrust race (26) to hub (3).
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8. Install torque converter turbine (23) and hub (3) as a unit to housing (9).
9. Use Tooling (B) and a suitable press to install sleeve bearing (22). Install sleeve bearing
(22) to carrier assembly (12).
10. Install thrust bearing (21) to carrier assembly (12).
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11. Install side plate (20) to torque converter stator (13). Use Tooling (A) to install retaining
ring (19). Install retaining ring (19) to torque converter stator (13).
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.
12. Use Tooling (B) and a suitable press to install freewheel cam (18). Install freewheel cam
(18) to torque converter stator (13).
13. Install torque converter stator (13) to carrier assembly (12). Install freewheel springs (17)
and freewheel rollers (16) to freewheel cam (18). Always install new freewheel springs (17)
and freewheel rollers (16). Install freewheel springs (17) with the maximum number of
loops in freewheel springs (17) to the outside of freewheel cam (18). Torque converter
stator (13) should turn freely in the counterclockwise direction. Torque converter stator (13)
should not turn freely in the clockwise direction.
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14. Install thrust race (15) to torque converter stator (13). Use Tooling (A) to install retaining
ring (14). Install retaining ring (14) to torque converter stator (13).
15. Install carrier assembly (12) and torque converter stator (13) as a unit to housing (9).
16. Install thrust bearing (11) to carrier assembly (12).
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17. Install impeller hub (8) to torque converter impeller (5). Install metal seal ring (10) to torque
converter impeller (5).
18. Install clamp plate (7), the washers, and bolts (6) to impeller hub (8). Tighten bolts (6) to a
torque of 50 ± 7 N.m (37 ± 5 lb ft).
19. Install bolts (4) and the washers to torque converter impeller (5). Tighten bolts (4) to a
torque of 50 ± 7 N.m (37 ± 5 lb ft).
20. 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).
21. Install carriage support assembly (2) to hub (3). Use Tooling (A) to install retaining ring (1).
Install retaining ring (1) to carriage support assembly (2).
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22. Install Tooling (D) to the torque converter, as shown. The edge of Tooling (D) must be in
contact with the edge of carrier assembly (12), as shown. Move hub (3) up and down with a
screwdriver. The end play of hub (3) must be 0.13 to 1.96 mm (0.005 to 0.077 inch).
End By:
a. Install the torque converter.
Sat May 1 21:49:04 UTC+0800 2021
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Shutdown SIS
Previous Screen
i04578058
Torque Converter - Assemble - Scraper
SMCS - 3101-016
S/N - DBW1-UP
Assembly Procedure
Table 1
Required Tools
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.
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1. Use a suitable press and Tooling (C) to install bearing (36) and shaft into gear (34).
2. Install retaining ring (35) on each side of gear (34) .
3. Position housing assembly (2) as shown.
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4. Install gear (34). Install bolts (33) .
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) .
6. Install the spacer. Raise the temperature of bearing race (32). Install bearing race (32) on
shaft assembly (21) .
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7. Install seal ring (28) .
8. Install gear (27) to carrier assembly (22) .
9. Raise the temperature of bearing (26). Install bearing (26) on carrier assembly (22) .
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10. Position lower part of carrier assembly (22) under impeller wheel assembly (18) .
11. Install Tooling (G) to align carrier assembly (22) with impeller wheel assembly (18) .
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12. Install bolts (25). Tighten bolts (25) to a torque of 50 ± 7 N·m (37 ± 5 lb ft).
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 N·m (30 ± 4 lb ft).
14. Install carrier assembly (22) and impeller wheel assembly (18) on turbine (31) and shaft
assembly (21) .
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Note: Install bearing (20) with Radius Side (X) facing down, toward carrier assembly (22).
15. Raise the temperature of bearing (20). Install bearing. Install retaining ring (19) .
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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) .
17. Install bolts (17). Tighten bolts (17) to a torque of 30 ± 5 N·m (22 ± 4 lb ft).
18. Reposition torque converter assembly (3) on Tooling (B). The weight of torque converter
assembly (3) is approximately 64 kg (142 lb).
19. Lower the temperature of bearing (15) and install bearing. Install retaining ring (14). Install
upper bearing race (16) and retaining ring (13) .
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20. Install bearing retainer (11). Install bolts (12). Tighten bolts (12) to a torque of 50 ± 7 N·m
(37 ± 5 ft).
21. Install hub (9). Install shaft retainer (8) and the seal rings. Install bolts (10). Tighten bolts
(10) to a torque of 50 ± 7 N·m (37 ± 5 lb ft). Install friction disk (7) .
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Caterpillar Cat 627H WHEEL TRACTOR (Prefix DBW) Service Repair Manual Instant Download.pdf

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