8X7948 SHAFT-AXLE Caterpillar parts
776C, 776D, 777B, 777D, 777F, 777G
Rating:
Alternative (cross code) number:
CA8X7948
8X-7948
8X7948
CA8X7948
8X-7948
8X7948
Weight: 148 pounds 67 kg.
TRACTOR, TRUCK,
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Information:
Installation Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     5P-7307     Engine Turning Tool     1    
B     9M-1974     Washer     2    
1B-2713 Bolt     2    
C     4C-5593     Anti-Seize Compound     -    
D     9S-3263     Thread Lock Compound     -    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01423949
Note: Ensure that the key for gear (8) is in position on camshaft (7) before gear (8) is installed.
Raise the temperature of gear (8) to a maximum temperature of 315 °C (600 °F). Install gear (1) on camshaft (7) .
Do not let Tooling (C) get on the bearing journals on the camshaft.
Put Tooling (C) on the lobes of camshaft (7) . Put clean engine oil on the camshaft journals.
Illustration 2 g00790605
Turn the crankshaft until (V) mark on the idler gear is positioned toward the bore of camshaft (7) .
Install camshaft (7) in the engine.
Illustration 3 g01423952
Rotate the engine until (V) marks of camshaft gear (8) and of idler gear (9) are in alignment.
Illustration 4 g00790603
Install plate (6) and bolts (5) that hold the camshaft in position in the engine.
Illustration 5 g00790584
Use Tooling (B) in order to put the bolt holes in the rear camshaft gear in alignment with the holes in the camshaft.
Install one bolt (4) in order to hold the rear camshaft gear on the camshaft. Remove Tooling (B) . Tighten bolt (4) to a torque of 27 4 N m (20 3 lb ft).
Use Tooling (A) to turn the flywheel so the three other bolts (4) can be installed in the rear camshaft gear. Tighten bolts (4) to a torque of 27 4 N m (20 3 lb ft).
Illustration 6 g00790581
Put Tooling (D) on studs (3) . Install studs (3) in the flywheel housing.
Illustration 7 g00790577
Ensure that the gasket is in position between tube assembly (1) and the bottom of the turbocharger. Ensure that the gasket is in position between elbow (2) and the flywheel housing. Install tube assembly (1) and elbow (2) .End By:
Install the valve lifter. Refer to Disassembly and Assembly, "Valve Lifter - Install".
Install the rocker shaft and the pushrod. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rod - Install".
Install the timing gear cover. Refer to Disassembly and Assembly, "Timing Gear Cover - Remove and Install".
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     5P-7307     Engine Turning Tool     1    
B     9M-1974     Washer     2    
1B-2713 Bolt     2    
C     4C-5593     Anti-Seize Compound     -    
D     9S-3263     Thread Lock Compound     -    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01423949
Note: Ensure that the key for gear (8) is in position on camshaft (7) before gear (8) is installed.
Raise the temperature of gear (8) to a maximum temperature of 315 °C (600 °F). Install gear (1) on camshaft (7) .
Do not let Tooling (C) get on the bearing journals on the camshaft.
Put Tooling (C) on the lobes of camshaft (7) . Put clean engine oil on the camshaft journals.
Illustration 2 g00790605
Turn the crankshaft until (V) mark on the idler gear is positioned toward the bore of camshaft (7) .
Install camshaft (7) in the engine.
Illustration 3 g01423952
Rotate the engine until (V) marks of camshaft gear (8) and of idler gear (9) are in alignment.
Illustration 4 g00790603
Install plate (6) and bolts (5) that hold the camshaft in position in the engine.
Illustration 5 g00790584
Use Tooling (B) in order to put the bolt holes in the rear camshaft gear in alignment with the holes in the camshaft.
Install one bolt (4) in order to hold the rear camshaft gear on the camshaft. Remove Tooling (B) . Tighten bolt (4) to a torque of 27 4 N m (20 3 lb ft).
Use Tooling (A) to turn the flywheel so the three other bolts (4) can be installed in the rear camshaft gear. Tighten bolts (4) to a torque of 27 4 N m (20 3 lb ft).
Illustration 6 g00790581
Put Tooling (D) on studs (3) . Install studs (3) in the flywheel housing.
Illustration 7 g00790577
Ensure that the gasket is in position between tube assembly (1) and the bottom of the turbocharger. Ensure that the gasket is in position between elbow (2) and the flywheel housing. Install tube assembly (1) and elbow (2) .End By:
Install the valve lifter. Refer to Disassembly and Assembly, "Valve Lifter - Install".
Install the rocker shaft and the pushrod. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rod - Install".
Install the timing gear cover. Refer to Disassembly and Assembly, "Timing Gear Cover - Remove and Install".
Caterpillar parts catalog:
Parts shaft Caterpillar catalog:
2128179
SHAFT
3056, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130B, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 854G, 992G, 994, 994D, 994F, 994H, G35...
3056, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130B, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 854G, 992G, 994, 994D, 994F, 994H, G35...
2W9723
SHAFT AS-PUMP DRIVE
3508, 3508B, 3508C, 3512, 3512B, 3516, 3516B, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777D, 784B, 784C, 785, 785B, 785C, 789B, 789C, 793, 793B, 793C, 854G, 992G, 994, 994D, D11N, D11R, G3508, G3512...
3508, 3508B, 3508C, 3512, 3512B, 3516, 3516B, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777D, 784B, 784C, 785, 785B, 785C, 789B, 789C, 793, 793B, 793C, 854G, 992G, 994, 994D, D11N, D11R, G3508, G3512...
1W4340
SHAFT-FUEL CONTROL
3508, 3508C, 777B, D11N
3508, 3508C, 777B, D11N
2W5479
SHAFT AS-PUMP
3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 793B, 797, 797B, 994, G3508, G3512, G3512B, G3512E, G3516, G3516B, G3516C, G3516E, G3516H, PM3512, PMG3516...
3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 793B, 797, 797B, 994, G3508, G3512, G3512B, G3512E, G3516, G3516B, G3516C, G3516E, G3516H, PM3512, PMG3516...
1051482
SHAFT AS-PUMP DRIVE
24H, 3408E, 3412C, 3412E, 631D, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771D, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, ...
24H, 3408E, 3412C, 3412E, 631D, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771D, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, ...
1077373
SHAFT AS-IDLER
24H, 3408E, 3412C, 3412E, 631D, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771D, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, ...
24H, 3408E, 3412C, 3412E, 631D, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771D, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, ...
3T2006
SHAFT AS
776C, 776D, 777B, 777D, 777F, 777G, TH48-E70
776C, 776D, 777B, 777D, 777F, 777G, TH48-E70
1S9209
SHAFT-TIGHTENER
24H, 3508, 3512, 3516, 375, 375 L, 5080, 5110B, 578, 583R, 587R, 589, 621, 621B, 621E, 621F, 623E, 623F, 627E, 627F, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771C, 771...
24H, 3508, 3512, 3516, 375, 375 L, 5080, 5110B, 578, 583R, 587R, 589, 621, 621B, 621E, 621F, 623E, 623F, 627E, 627F, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771C, 771...
6T6837
SHAFT AS
621E, 621F, 623E, 627E, 631E, 637E, 651E, 657E, 769C, 772B, 773B, 777B, 785
621E, 621F, 623E, 627E, 631E, 637E, 651E, 657E, 769C, 772B, 773B, 777B, 785
7D3454
SHAFT
769C, 769D, 771C, 771D, 772, 773, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793C
769C, 769D, 771C, 771D, 772, 773, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793C
8X7947
SHAFT-AXLE
776C, 777B
776C, 777B
1022236
SHAFT-PLANETARY
776C, 776D, 777B, 777D, 777F, 777G
776C, 776D, 777B, 777D, 777F, 777G
8X7947
SHAFT-AXLE
776C, 777B
776C, 777B
7T1495
SHAFT-GOVERNOR DRIVE
776C, 776D, 777B, 777D, 777F, 777G
776C, 776D, 777B, 777D, 777F, 777G
7W5396
SHAFT-TACHOMETER DRIVE
776C, 784B, 785, 785B, 789B, 793B
776C, 784B, 785, 785B, 789B, 793B
9Y8268
SHAFT AS
5130, 5230, 776C, 777B, 789B, D11N, D11R
5130, 5230, 776C, 777B, 789B, D11N, D11R
1W5075
SHAFT-FAN
773G LRC, 773G OEM, 775G LRC, 775G OEM, 776C, 776D, 777, 777B, 777C, 777D, 777F, 777G, 785
773G LRC, 773G OEM, 775G LRC, 775G OEM, 776C, 776D, 777, 777B, 777C, 777D, 777F, 777G, 785
3153096
SHAFT AS
776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 793B
776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 793B
2G2512
SHAFT
768C, 769C, 769D, 771C, 771D, 772B, 773B, 773D, 775B, 775D, 776, 776C, 776D, 777, 777B, 777D, 784B, 785, 785B, 789, 789B, 793B, 793C
768C, 769C, 769D, 771C, 771D, 772B, 773B, 773D, 775B, 775D, 776, 776C, 776D, 777, 777B, 777D, 784B, 785, 785B, 789, 789B, 793B, 793C
1T1688
SHAFT-OUTPUT
776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C
776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C
3T9427
SHAFT-CENTER
776C, 776D, 777B, 777D, 777F
776C, 776D, 777B, 777D, 777F
7T5885
SHAFT AS-INPUT
776C, 776D, 777B, 777D, 777F, 777G
776C, 776D, 777B, 777D, 777F, 777G
3T3079
SHAFT-PLANETARY
776C, 776D, 777B, 777D, 777F, 777G
776C, 776D, 777B, 777D, 777F, 777G
1022236
SHAFT-PLANETARY
776C, 776D, 777B, 777D, 777F, 777G
776C, 776D, 777B, 777D, 777F, 777G