Care must be taken to ensure that fluids are containedduring performance of inspection, maintenance, testing, adjusting and repair of the product. Be preparedto collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.
Dispose of all fluids according to local regulations and mandates.
Illustration 1 g01269954
Typicalexample
1. Remove allen head screw(1) from accessory drive housing (8). Remove allen head screws (6) from accessory drive housing (8).
2. Remove accessory drive housing (8) from the front housing.
3. If necessary, followSteps3.a through 3.c in order to disassemble the accessory drive.
a. Remove circlip (2) from accessory drive housing (8).
e. Install circlip (2) into the groove in accessory drive housing (8). Ensure that circlip (2) is correctly positioned in the groove.
2. Lightly lubricate a new O-ring seal (7) with Tooling (C). Install the O-ring seal into the groove in accessory drive housing (8).
3. Inspect the bore in the front housing for damage. If necessary, replace the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove" and Disassembly and Assembly, "Housing (Front) - Install".
4. Lightly lubricate bearing (3), bearing (5), and gear (4) with clean engine lubricating oil. Install the assembly of the accessory drive to the front housing. Ensure that the flange on the accessory drive housing is flush with the front housing.
5. Apply Tooling (D) to allen head screws (1) and (6). Install allen head screws (1) and (6) to accessory drive housing (8).
6. Tighten the allen head screws to a torque of 22 N路m (16 lb ft).
7. Ensure that there is tactile backlash between the idler gear and the accessory drive gear.
1993 - 2020 Caterpillar Inc.
Product: MOTOR GRADER
Model: 12M MOTOR GRADER B9F
Configuration: 12M Motor Grader B9F00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines Media Number -KENR6081-15
Air Compressor - Remove and Install
SMCS - 1803-010
Removal Procedure Table 1
(1) The Crankshaft Turning Tool is usedon the front pulley.
(2) This Tool is usedin theaperture for the electricstarting motor.
Note: Either Tooling (A) can be used. Use the Tooling that is most suitable.
NOTICE
Care must be taken to ensure that fluids are containedduring performance of inspection, maintenance, testing,
and repair
i05194955
of the product. Be preparedto collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.
Dispose of all fluids according to local regulations and mandates.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear andshortened component life.
Note: Put identification marks on all hoses, on all hose assembliesand on all tube assemblies for installation purposes. Plug all hose assemblies and tube assemblies. Plugging hose assembliesand tube assemblies helps to prevent fluid loss and helps to keep contaminants from entering the system.
Do not disconnect the air linesuntil the air pressure in the system is at zero. If hose is disconnectedunder pressure it cancause personal injury.
1. Release the pressure from the air system. Refer to the Original Equipment Manufacture (OEM) for the correct procedure.
2. If the engine is equipped with a hydraulic pump on the rear of the air compressor, remove the hydraulic pump. Refer to the OEMfor the correct procedure.
3. Drain the coolant from the cooling system into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining procedure.
4. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at the top center position on the compression stroke. Refer to Systems Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston".
Note: The air compressor must be timed with the engine in order to minimize engine vibration.
Illustration 1 g01353468
Typicalexample
5. Remove plug (1) from the cylinder block. Install Tooling (B) into Hole (X) in the cylinder block. Use Tooling (B) in order to lock the crankshaft in the correct position.
Note: Do not use excessive force to install Tooling (B). Do not use Tooling (B) to hold the crankshaft during repairs.
Illustration 2 g01353469
Typicalexample
Illustration 3 g01353470
Typicalexample
6. Disconnect coolant hose (2) and hose (3) from air compressor (5).
7. Disconnect the air linesfrom port (4) and port (6).
8. Remove tube assembly (8) from air compressor (5) and from the cylinder block.
9. Remove bolts (9) and bolts(11) from support bracket (10) and remove the support bracket.
10. Support air compressor (5). Remove nuts(14) and remove the air compressor from front housing (7).
Illustration 4 g01353471
Typicalexample
11. Remove O-ring seal (19) from air compressor (5).
12. If necessary, remove bolts(16) and remove plate (15). Remove O-ring seal (12) from plate (15). Refer to Illustration 3.
13. If necessary, followStep 13.a through Step 13.c in order to remove gear (17) from air compressor (5).
a. Use a suitable tool in order to prevent gear (17) from rotating.
b. Remove nut (18) and remove the spring washer.
c. Use Tooling (C) in order to remove gear (17) from the crankshaft of air compressor (5).
Illustration 5 g01353471
Typicalexample
1. If necessary, followStep 1.a through Step 1.b in order to install gear (17) to air compressor (5).
a. Ensure that the shaft of air compressor (5) is clean and dry. Ensure that gear (17) is clean and free from damage.
b. Install gear (17) and a new spring washer to the shaft of air compressor (5).
c. Apply Tooling (D) to the threads of the shaft. Install nut (18) to the shaft of air compressor (5).
d. Use a suitable tool in order to prevent gear (17) from rotating as nut (18) is tightened. Tighten the nut to a torque of 120 N路m (89 lb ft).
2. Install a new O-ring seal (19) to the recess of air compressor (5). Use Tooling (E) in order to lubricate the O-ring seal.
3. Ensure that number one piston is at the top center position on the compression stroke. Refer to Systems Operation, Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".
Note: The air compressor must be timed with the engine in order to minimize engine vibration.
Illustration 6
g01353468 Typicalexample
4. Ensure that Tooling (B) is installed in Hole (X) in the cylinder block. Use Tooling (B) in order to lock the crankshaft in the correct position.
Note: Do not use excessive force to install Tooling (B). Do not use Tooling (B) to hold the crankshaft during repairs.
Illustration 7 g01333452
Typicalair compressorwith a SAE drive
Illustration 8 g01333453
Typicalair compressorwith a DIN drive
5. Rotate the crankshaft of the air compressor until timing Mark (X) is aligned with timing mark A6 on the rear face of air compressor (5). Refer to Illustration 7 for air compressors with a SAE drive. Refer to Illustration 8 for air compressors with a DIN drive.
Illustration 9 g01353470
Typicalexample
6. Align air compressor (5) with studs (13). Install the air compressor to the front housing. If necessary, rotate the crankshaft of the air compressor in a clockwise direction in order to align the gears.
Note: Ensure that timing Mark (X) is aligned with the timing mark A6. Refer to Illustration 7 for air compressorswith a SAE drive. Refer to Illustration 8 for air compressors with a DIN drive.
7. Install nuts(14). Tighten the nutsto a torque of 78 N路m (58 lb ft).
8. If necessary, followSteps8.a through 8.c in order to install cover (15).
a. Install a new O-ring seal (12) to cover (15). Use Tooling (E) in order to lubricate the O-ring seal.
b. Install cover (15) to air compressor (5).
c. Install bolts (16). Tighten the bolts to a torque of 13 N路m (9.5 lb ft).
Illustration 10 g01353469
Typicalexample
9. Position support bracket (10) onto air compressor (5). Install bolts (9) finger tight.
10. Install bolts (11) finger tight.
11. Tighten bolts (9) to a torque of 9 N路m (80 lb in).
12. Tighten bolts (11) to a torque 44 N路m (32 lb ft).
13. Loosen bolts (9) in order to allow air compressor (5) to return to the air compressor natural position.
14. Tighten bolts (9) to a torque of 22 N路m (195 lb in).
Note: Ensure that the air compressor is not stressed as the bolts are tightened.
15. Install tube assembly (8) to air compressor (5) and to the cylinder block. Tighten the nutsto a torque of 9 N路m (80 lb in).
16. Remove Tooling (B) from Hole (X) in the cylinder block. Install plug (1) to the cylinder block. Refer to Illustration 6.
17. If the engine is equipped with a hydraulic pump on the rear of the air compressor, install the hydraulic pump. Refer to the OEM for the correct procedure.
18. Connect the air linesto ports (4) and (6) in the air compressor. Refer to the OEMfor the correct procedure.
19. Connect coolant hoses(2) and (3) to air compressor (5).
20. Fill the cooling system with coolant to the correct level. Refer to Operation and Maintenance Manual
This is the sample of the manual
Click on the download link for complete Manual
Product: MOTOR GRADER
Model: 12M MOTOR GRADER B9F
Configuration: 12M Motor Grader B9F00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines
Media Number -KENR6081-15
Publication Date -01/03/2014
Alternator - Install - Alternators with Mounting Lugs
SMCS - 1405-012
Installation Procedure
Date Updated -04/03/2014
i02786955
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear andshortened component life.
Illustration 1 g01334584
Typicalexample
1. If necessary, install pulley (7) and nut (8) to alternator (3). Hold the shaft of alternator (3) with an allen wrench. Use a cranked ring spanner in order to tighten nut (8).
Note: Different types of alternator have different sizes of nut. Ensure that the correct torque value is used for the nut.
Tighten M16 and M17 nutsto a torque of 80 N路m (59 lb ft). Tighten 5/8 inch - 18 UNF nuts to a torque of 102 N路m (75 lb ft).
2. Position alternator (3) on alternator mounting bracket (4).
3. Install bolt (5) to alternator (3). Install washer (2) and nut (1) to bolt (5).
4. Install bolt (6) to alternator (3).
5. Tighten nut (1) and bolt (6) to a torque of 22 N路m (16 lb ft).
6. Connect wiring harness assembly to alternator (3).
7. Install the alternator belt. Refer to Disassembly and Assembly, "Alternator Belt - Remove and Install".
8. Turn the battery disconnect switch to the ON position.
Product: MOTOR GRADER
Model: 12M MOTOR GRADER B9F
Configuration: 12M Motor Grader B9F00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines
Media Number -KENR6081-15
Publication Date -01/03/2014
Alternator - Install - Alternators with Mounting Pads
SMCS - 1405-012
Installation Procedure
Date Updated -04/03/2014
i02786954
Illustration 1 g01334617
1. If necessary, install pulley (4) and nut (5) to alternator (1). Hold the shaft of alternator (1) with an allen wrench. Use a cranked ring spanner in order to tighten nut (5). Tighten the nut to a torque of 127 N路m (93 lb ft).
2. Position alternator (1) on alternator mounting bracket (2). Install bolts(3) into the alternator bracket. Tighten the bolts to a torque of 44 N路m (32 lb ft).
3. Connect the wiring harnessassembly to alternator (1).
4. Install the alternator belt. Refer to Disassembly and Assembly , "Alternator Belt - Remove and Install".
5. Turn the battery disconnect switch to the ON position. Copyright 1993 - 2020 Caterpillar Inc.
Product: MOTOR GRADER
Model: 12M MOTOR GRADER B9F
Configuration: 12M Motor Grader B9F00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines
Media Number -KENR6081-15
Publication Date -01/03/2014
Date Updated -04/03/2014
Alternator - Remove - Alternators with Mounting Lugs
SMCS - 1405-011
Removal Procedure
Start By:
i05735344
a. Remove the alternator belt. Refer to Disassembly and Assembly, "Alternator Belt - Remove and Install" for the correct procedure.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear andshortened component life.
1. Turn the battery disconnect switch to the OFFposition.
2. Place identification marks on all of the wiring harness connections.