Caterpillar cat 740 c ejector articulated truck (prefix tfn) service repair manual (tfn00001 and up)

Service Repair Manual
Models
740C Ejector Articulated Truck

Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: 740C ARTICULATED TRUCK TFN
Configuration: 740C Ejector Articulated Truck TFN00001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly
735C, 740C EJECTOR and 745C Articulated Trucks Power Train
Media Number -UENR4227-04 Publication Date -01/09/2015 Date Updated -02/07/2018
i06222300
Hitch Drive Shaft Bearings - Remove
SMCS - 3253-011-BD
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 154-6182 Forcing Bolt 2
B 136-1452 Internal Tip Pliers 1
C 8B-7551 Bearing Puller Gp 1
D 154-6181 Forcing Bolt 2
E 4C-3085 Two Jaw Puller 1
Start By:
a. Remove the center drive shaft.
b. Remove the hitch drive shaft.
Personal injury or death can result from machine articulation or
movement.
Machine frames can move and a person can be crushed.
1/6740C Ejector Articulated Truck TFN00001-UP (MACHINE) POWERED BY C18 En...
2020/1/6https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...

Connect the steering frame lock link between the front and rear frames
before working on machine.
Do not disconnect the lock link until the machine is made operational
and the commissioning procedure is completed.
Illustration 1 g03861533
Typical Example
View from the underside of the rear frame.
1. Remove bolts (1) in order to remove locking plate (2) from thrust flange (3) and bearing
carrier (4).
Typical Example
2. Turn over locking plate (2) and position the dowels on locking plate (2) into the holes in
thrust flange (3). Insert a suitable 3/4 inch breaker bar into the locking plate in order to turn
the thrust flange counterclockwise and remove thrust flange (3) from bearing carrier (4).

View from the hitch area.
3. Remove bolt (5) and washer (6) in order to remove shaft yoke (7) and the O-ring seal from
bearing carrier (8) and the hitch drive shaft.
Note: If necessary, use Tooling (E) in order to remove shaft yoke (7).
Note: The machine has the ability to split with the hitch shaft removed. Ensure wheel
chocks are in place.
4. Remove bolts (9) in order to disconnect bearing carrier (4) from the hitch tube. Install
Tooling (A) into the threaded holes in bearing carrier (4) in order to force bearing carrier (4)
from the hitch tube. Use two people in order to remove bearing carrier (4) and the hitch
drive shaft from the machine. The weight of bearing carrier (4) and the hitch drive shaft is
approximately 45 kg (100 lb).
5. Remove lip seal (10) from the bearing housing.

6. Remove bolt (11) and washer (12) in order to remove shaft yoke (13) and the O-ring seal
from bearing carrier (4) and hitch drive shaft (14).
Note: If necessary, use Tooling (E) in order to remove shaft yoke (13).
7. Use Tooling (B) in order to remove retaining ring (15). Remove bearing (16) and hitch drive
shaft (14) from bearing carrier (4). Remove O-ring seal (17) from bearing carrier (4).

8. Use a suitable punch in order to remove lip seal (18) from bearing carrier (4).
9. Use a suitable press and Tooling (C) in order to remove bearing (16) from hitch drive shaft
(14). Turn over hitch drive shaft (14). Repeat the procedure in order to remove the bearing
that is located on the opposite end of hitch drive shaft (14).
10. Remove bolts (19) in order to disconnect bearing carrier (8) from the hitch tube. Install
Tooling (D) into the threaded holes in bearing carrier (8) in order to force bearing carrier (8)
from the hitch tube. Remove bearing carrier (8) from the machine.

11. Use a suitable punch in order to remove lip seal (20) from bearing carrier (8). Remove O-
ring seal (21) from bearing carrier (8).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Jan 6 09:46:19 UTC+0800 2020

Shutdown SIS
Previous Screen
i06222650
Hitch Drive Shaft Bearings - Install
SMCS - 3253-012-BD
Installation Procedure
Table 1
Required Tools
A 1P-0520 Driver Group 1
B 136-1452 Internal Tip Pliers 1
C 5P-0960 Grease Cartridge 1
D 5P-3931 Anti-Seize Compound 1
Note: The machine has the ability to split, ensure wheel chocks are in place.
Note: Cleanliness is an important factor. Before the installation procedure, the exterior of the
component should be thoroughly cleaned. This will help to prevent dirt from entering the internal
mechanism.

1. Install O-ring seal (21) onto bearing carrier (8).
2. Use Tooling (A) in order to install new lip seal (20) into the bearing carrier (8). Fill in 1/3 of
the cavity bearing carrier (8) with Tooling (C) in order to lubricate lip seal (20).
View from the hitch area.
3. Position bearing carrier (8) onto the hitch tube. Install bolts (19) in order to connect bearing
carrier (8) to the hitch tube.

4. Raise the temperature of bearing (16) in order to install bearing (16) onto hitch drive shaft
(14). Turn over hitch drive shaft (14) and install retaining ring (15) that is used to secure
bearing (16) to bearing carrier (4) in step 6. Repeat the procedure in order to install the
bearing onto the opposite end of the hitch drive shaft (14).
5. Use Tooling (A) in order to install new lip seal (18) into bearing carrier (4). Fill in 1/3 of the
cavity bearing carrier (4) with Tooling (C) in order to lubricate lip seal (18).
6. Install O-ring seal (17) onto bearing carrier (4). Install hitch drive shaft (14) and roller
bearing (16) into bearing carrier (4). Use Tooling (B) in order to install retaining ring (15)
into bearing carrier (4).

7. Coat the splines at the end of hitch drive shaft (14) with grease. Install shaft yoke (13) and
the O-ring seal onto hitch drive shaft (14). Install bolt (11) and washer (12) in order to
secure shaft yoke (13) to the bearing carrier (4) and the hitch drive shaft (14).
Typical Example
View from the underside of the rear frame.
8. Use two people in order to install bearing carrier (4) and hitch drive shaft (14) to the hitch
tube. The weight of bearing carrier (4) and hitch drive shaft (14) is approximately 45 kg
(100 lb).
9. Install bolts (9) in order to secure bearing carrier (4) to the hitch tube.
Note: Ensure that the two remaining bolt holes in the bearing carrier are adjacent to each
other for installation of the locking plate in step 13.
10. Note the orientation of lip seal (10), and install lip seal (10) onto bearing housing (4).

11. Coat the splines at the end of hitch drive shaft (14) with grease. Install shaft yoke (7) and
the O-ring seal onto hitch drive shaft (14). Install bolt (5) and washer (6) in order to connect
the shaft yoke (7) to bearing carrier (8) and hitch drive shaft (14).
12. Apply Tooling (D) to the threads of thrust flange (3). Install thrust flange (3) onto bearing
carrier (4). Insert locking plate (2) and a suitable 3/4 inch breaker bar into the holes in thrust
flange (3) in order to tighten the thrust flange.
Note: For the correct setting procedure, refer to Operation and Maintenance Manual,
"Oscillating Hitch - Adjust".

13. Install the two dowels in locking plate (2) into the two holes in thrust flange (3). Install bolts
(1) in order to secure the locking plate to bearing carrier (4) and the thrust flange.
Note: After disassembly of the hitch drive shaft bearings, the adjustment of the oscillating hitch
should be checked after the subsequent 500 service hours have been completed. For further
information on the service intervals for the oscillating hitch, refer to the Operation and
Maintenance Manual, "Maintenance Interval Schedule".
End By:
a. Install the hitch drive shaft.
b. Install the center drive shaft.
Mon Jan 6 09:47:15 UTC+0800 2020

Shutdown SIS
Previous Screen
i06222655
Center Drive Shaft - Remove and Install
SMCS - 3253-010-CE
Removal Procedure
Table 1
Required Tools
A
8S-7610 Base 1
396-9840 Cylinder 1
350-7768 Electric Hydraulic Pump (115V) 1
350-7769 Electric Hydraulic Pump Gp (230V) 1
8S-7615 Pin 1
B 155-3597 Wheel Chock 2
C 1U-7505 Hydraulic Jack 1
Personal injury can result from driveline torque windup under load.
Unequal wheel speed can result in driveline torque windup which can
cause driveline components to be under load during disassembly.
Relieve the driveline torque windup before disassembly.

1. Install the steering frame lock.
2. Install Tooling (B) to stabilize the machine.
3. Use tool (A) in order to raise the front axle until one of the wheels clears the ground. This
will release the drive line torque windup in the drive train. Lower the front axle and remove
Tooling (A).

4. Secure Tooling (C) and suitable cribbing to center drive shaft (2). The weight of center
drive shaft (2) is approximately 90 kg (200 lb).
5. Remove bolts (1) in order to disconnect drive shaft (2) from the center axle.
6. Remove bolts (3) in order to disconnect center drive shaft (2) from the hitch drive shaft.
7. Remove bolts (4) in order to remove universal joint (5) from center drive shaft (2).

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8. Remove bolts (6) in order to remove universal joint (7) from center drive shaft (2) .
Installation Procedure
1. Install center drive shaft (2) in the reverse order of removal.
a. Tighten bolts (6) and (4) to a torque of 117 ± 10 N·m (86 ± 7 lb ft).
b. Tighten bolts (1) and (3) to a torque of 117 ± 10 N·m (86 ± 7 lb ft).
Mon Jan 6 09:48:10 UTC+0800 2020

Shutdown SIS
Previous Screen
i06224205
Rear Drive Shaft - Remove and Install
SMCS - 3253-010-RE
Removal Procedure
Table 1
Required Tools
A 1U-7505 Jack 1
B
8S-7610 Base 1
396-9840 Cylinder 1
350-7768 Electric Hydraulic Pump (115V) 1
350-7769 Electric Hydraulic Pump Gp (230V) 1
8S-7615 Pin 1
C 155-3597 Wheel Chock 2
Personal injury can result from driveline torque windup under load.
Unequal wheel speed can result in driveline torque windup which can
cause driveline components to be under load during disassembly.
Relieve the driveline torque windup before disassembly.

1. Install the steering frame lock.
2. Use Tooling (C) in order to stabilize the machine.
3. 3. Use Tooling (B) in order to raise the front axle until one of the wheels clears the ground.
This will release the drive line torque windup in the drive train. Lower the front axle and
remove Tooling (B).
4. Position Tooling (A) and suitable cribbing and secure rear drive shaft (1) to Tooling (A).

5. Remove bolts (2) in order to disconnect rear drive shaft (1) from the rear axle.
6. Remove bolts (3) in order to disconnect rear drive shaft (1) from the center axle.
7. Use Tooling (A) in order to remove rear drive shaft (1) from the machine. The weight of
rear drive shaft (1) is approximately 43 kg (95 lb).

Caterpillar cat 740 c ejector articulated truck (prefix tfn) service repair manual (tfn00001 and up)

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