Caterpillar cat 140 g motor grader (prefix 72v) service repair manual (72v00823 04230)

Service Repair Manual
Models
140G Motor Grader

Shutdown SIS
Previous Screen
Product: MOTOR GRADER
Model: 140G MOTOR GRADER 72V
Configuration: 140G MOTOR GRADER 72V00823-04230 (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
3304B and 3306B Engines for Caterpillar Built Machines
Media Number -SENR5598-09 Publication Date -01/01/2013 Date Updated -25/01/2013
i01037991
Camshaft - Remove and Install
SMCS - 1210-010
Removal Procedure
Start By:
A. Remove the valve lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove and
Install".
B. Remove the timing gear cover. Refer to Disassembly and Assembly, "Front Housing -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1/5140G MOTOR GRADER 72V00823-04230 (MACHINE) POWERED BY 3306 ENG...
2020/2/25https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g00476744
1. Turn the crankshaft to top center compression stroke for the No. 1 piston. The "C" mark on
the crankshaft gear will be aligned with the "C" mark on the camshaft gear.
Note: Put a mark on the teeth of the fuel injection pump drive gear and the idler gear at
location (A). This will help to keep the engine timing correct during the removal and the
installation of the camshaft. Put a mark on the teeth of the idler gear and camshaft gear (2)
at location (B). When the camshaft is installed, the engine timing will be correct when the
mark at location (A) is aligned with the mark at location (B) and the "C" mark on the
crankshaft gear is aligned with the "C" mark on the camshaft gear.
2. Remove the bolts, the lock and washer (1) .

NOTICE
Do not damage the lobes or the bearings when the camshaft is
removed.
3. Carefully remove camshaft (3) from the engine.
4. If necessary, remove the bolts that hold camshaft drive gear (2) to the camshaft and remove
the gear.
Installation Procedure
NOTICE
1. Put camshaft drive gear (2) in position on the end of camshaft (3). Install the bolts that hold
camshaft drive gear (2) to camshaft (3). Tighten the bolts to a torque of 55 ± 7 N·m (41 ± 5
lb ft).
NOTICE
Do not damage the lobes or the bearings when the camshaft is installed.

2. Put 8T-2998 Camshaft Lubricant on the camshaft lobes only and put clean engine oil on the
bearing journals.
Note: During the installation of camshaft (3), rotate the camshaft in both directions in order
to prevent binding in the camshaft bearing bores.
3. Carefully install camshaft (3) into the engine.
4. Make sure that the mark on the teeth of the fuel injection pump drive gear and the idler gear
are in alignment at location (A). Make sure that the mark on the teeth of the idler gear and
camshaft gear (2) are in alignment at location (B). Align the "C" marks on the crankshaft
gear and camshaft gear (2). When all of the timing marks are in alignment the engine timing
is correct.

5. Install washer (1), the lock and the two bolts that hold the camshaft in position in the
engine.
End By:
a. Install the valve lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove and
Install".
b. Install the timing gear cover. Refer to Disassembly and Assembly, "Front Housing - Install".
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All Rights Reserved.
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Tue Feb 25 00:47:13 UTC+0800 2020

Shutdown SIS
Previous Screen
i02473351
Camshaft Bearings - Remove and Install
SMCS - 1211-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
8S-2241 Camshaft Bearing Tool Group 1
8H-0684 Ratchet Wrench 1
Start By:
A. Remove the Flywheel Housing. Refer to Disassembly and Assembly, "Flywheel Housing -
Remove and Install".
B. Remove the Oil Pan Plate. Refer to Disassembly and Assembly, "Oil Pan Plate - Remove
and Install".
C. Remove the Camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and
Install".
NOTICE

1. Use Tool (A) to remove the camshaft bearing from the cylinder block. Start with the front
bearings and work to the rear bearing.
Table 2
Required Tools
A
NOTICE

1. Use Tool (A) to install the camshaft bearings in the 3304B and 3306B cylinder block.
Note: The camshaft bearings in the 3304B have pressure lubrication. The intermediate
camshaft bearings and the rear camshaft bearings in the 3306B have splash lubrication.
2. Install the camshaft bearings in the 3304B cylinder block, as follows:
(a) Install the front bearing to a depth of 0.57 ± 0.5 mm (0.022 ± 0.02 inch). Ensure that the
oil holes are in a horizontal position and that the camshaft bearing joint is at the top of the
engine. The camshaft bearing joint can not be more than 15° degrees from vertical in either
direction.
(b) Install the center bearing to a depth of 303.2 ± 0.5 mm (11.94 ± 0.02 inch). Ensure that
the oil holes in the camshaft bearing are in alignment with the oil holes in the cylinder
block.
(c) Install the rear bearing to a depth of 604.9 ± 0.5 mm (23.81 ± 0.02 inch). Ensure that the
oil holes in the camshaft bearing are in alignment with the oil holes in the cylinder block.
1. Install the camshaft bearings in the 3306B cylinder block, as follows:
2. Install front bearing (B) to a depth of 0.5 ± 0.5 mm (.02 ± .02 inch). Ensure that the oil holes
are in a horizontal position and that the camshaft bearing joint is at the top of the engine.
The camshaft bearing joint cannot be more than 15 degrees from the vertical position in
either direction.
3. Install the remainder of the bearings. Install the bearings to the dimensions that are given
from the front face of the cylinder block: (C) 154.0 ± 0.5 mm (6.06 ± .02 inch), (D) 303.2 ±

0.5 mm (11.94 ± .02 inch), (E) 601.7 ± 0.5 mm (23.69 ± .02 inch) and (F) 903.4 ± 0.5 mm
(35.57 ± .02 inch).
End By:
a. Install the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and Install".
b. Install the oil pan plate. Refer to Disassembly and Assembly, "Engine Oil Pan Plate -
c. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing -
Tue Feb 25 00:48:08 UTC+0800 2020

Shutdown SIS
Previous Screen
i00974130
Engine Oil Pan - Remove and Install
SMCS - 1302-010
Removal Procedure
NOTICE
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the machine. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop
Products Guide", for tools and supplies suitable to collect and contain
fluids in Caterpillar machines.
Dispose of all fluids according to local regulations and mandates.
1. Drain the engine oil from the engine into a suitable container for storage or disposal.

2. Loosen nut (4) and move the overflow tube away from the oil level gauge guide. Loosen nut
(3) and remove the oil level gauge guide from the engine.
3. Remove bolts (1) and the washers that hold the engine oil pan in position. Remove engine
oil pan (2) and the gasket from the engine oil pan plate.
NOTICE
1. Put the gasket and engine oil pan (2) in position on the engine oil pan plate. Install bolts (1)
and the washers that hold the engine oil pan in position.

2. Install the oil level gauge guide and tighten nut (3). Fasten the overflow tube to the oil level
gauge guide and tighten nut (4) .
3. Fill the crankcase with engine oil to the proper level. Refer to Operation and Maintenance
Manual, "Refill Capacities".
Tue Feb 25 00:49:04 UTC+0800 2020

Shutdown SIS
Previous Screen
i01111802
Engine Balancer Shaft - Remove and Install
SMCS - 1220-010-JF
Removal Procedure
Start By:
A. Remove the front housing cover. Refer to Disassembly and Assembly, "Front Housing
Cover - Remove".
B. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump -
Remove".
NOTICE
NOTICE
of the product. Be prepared to collect the fluid with suitable containers
containing fluids.
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.

Note: The oil pan plate has been removed for photo purposes only.
1. Remove plates (2) that hold the balancer shaft in the cylinder block.
2. Remove balancer shafts (1) from the cylinder block.
NOTICE

1. Install the balancer shafts in each side of the cylinder block.
2. Install plates (2) and the bolts that hold the balancer shafts in position in the cylinder block.
Note: Ensure that the balancer shafts are in time before the oil pump is installed.
End By:
a. Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump -
Install".
b. Install the front housing cover. Refer to Disassembly and Assembly, "Front Housing Cover
- Install".
Tue Feb 25 00:50:00 UTC+0800 2020

Shutdown SIS
Previous Screen
i01135419
Engine Balancer Shaft Bearings - Remove and Install
SMCS - 1220-010-BD
Removal Procedure
Table 1
Required Tools
A
Start By:
A. Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan -
Remove".
B. Remove the balancer shaft. Refer toDisassembly and Assembly, "Balancer Shaft -
Remove".
C. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing
Remove" .
NOTICE
NOTICE

containing fluids.
Use Tool (A) to remove the six balancer shaft bearing. Pull the balancer shaft bearings toward the
flywheel end of the engine.

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(A) The front bearing depth is 0.8 ± 0.5 mm (0.03 ± 0.02 inch).
(B) The center bearing depth is 290.6 ± 0.5 mm (11.44 ± 0.02 inch).
(C) The rear bearing depth is 601.0 ± 0.5 mm (23.66 ± 0.02 inch).
NOTICE
NOTICE
containing fluids.

1. Install the balancer shaft front bearing with Tool (A). Ensure that the holes in the bearings
are aligned with the holes in the cylinder block. The bearing must be 0.8 ± 0.5 mm (0.03 ±
0.02 inch) inside the front face of the cylinder block after installation.
2. Install the balancer shaft center bearing with Tool (A). Ensure that the holes in the bearings
are aligned with the holes in the cylinder block. The bearing must be 290.6 ± 0.5 mm (11.44
± 0.02 inch) inside the front face of the cylinder block after installation.
3. Install the balancer shaft rear bearing with Tool (A). Ensure that the holes in the bearings
are aligned with the holes in the cylinder block. The bearing must be 601.0 ± 0.5 mm (23.66
± 0.02 inch) inside the front face of the cylinder block after installation.
4. Check the bore of the bearings. The balancer shaft bearing bore must be 53.05 ± 0.06 mm
(2.089 ± 0.002 inch) after installation.
End By:
a. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing -
Install" .
b. Install the balancer shaft. Refer to Disassembly and Assembly, "Balancer Shaft - Remove
and Install".
c. Install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove
and Install".
Tue Feb 25 00:50:55 UTC+0800 2020

Shutdown SIS
Previous Screen
i00912474
Cylinder Liner - Remove
SMCS - 1216-011
Removal Procedure
Table 1
Required Tools
A
8T-0812 Cylinder Liner Puller 1
1U-6317 Bridge 1
1U-6319 Socket 1
Start By:
A. Remove the spacer plate. Refer to Disassembly and Assembly, "Spacer Plate - Remove and
Install".
B. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump -
Remove".
NOTICE

1. Turn the crankshaft until two of the pistons are at the bottom center. Remove two
connecting rod cap bolts (2) from each rod. Remove connecting rod caps (4) .
2. Tap connecting rod (3) away from the crankshaft with a soft hammer. Remove bearing half
(1) .
3. Use tool (A) to remove cylinder liners (5) .
4. Remove the pistons and connecting rods from the cylinder liners.
Tue Feb 25 00:51:51 UTC+0800 2020

Caterpillar cat 140 g motor grader (prefix 72v) service repair manual (72v00823 04230)

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