9T9905 VALVE GP-RELIEF Caterpillar parts
120G, 12G, 130G, 140G, 14G, 160G, 16G, D8N, D8R
Rating:
Alternative (cross code) number:
CA9T9905
9T-9905
9T9905
CA9T9905
9T-9905
9T9905
Weight: 0.75 pounds 0 kg.
MOTOR GRADER, TRACK-TYPE TRACTOR,
Compatible equipment models: 9T9905:
Information:
Start By:
Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Removal Of The Injector
Illustration 1 g01025360
Remove oil drain plugs (1) at each end of the cylinder head.
Allow the engine oil to drain from the ports in the cylinder head before the injector is removed.
Disconnect harness connector (2).
Illustration 2 g01025365Note: Some of these engines were built without the deflector. During the installation of the unit injectors, the deflectors (Y) should be installed.
Remove bolt (3).
Remove bolt (4).
Illustration 3 g01025366
Place Tooling (A) under clamp (5) on the flywheel side of the injector.
Tooling (A) should be placed at this location in order to gently remove the injector. Use Tooling (A) to remove the injector.
Do not pry at location (Z).
Remove the O-Ring seals (6) from the injector.
Repeat Step 3 through Step 9 for the remainder of the injectors. Steps For Cleaning The Carbon Deposits
Illustration 4 g01025369Cleanliness is very important in the area around the sleeve and the sleeve bore when you are reinstalling the injector. This injector has a metal seal (7) between the bottom of the injector's case and a seat in the cylinder head. Clean the carbon from the seat area that is inside of the cylinder head. Also clean the carbon from the end of the injector if the injector should be reinstalled.The fine grade of the Scotch Brite material is preferred. Scotch Brite is available from the Tools And Shop Products Guide as the abrasive material and as the surface reconditioning pad.If the sleeve of the injector has been removed from the engine, use a reamer to remove carbon deposits from the angled surface.Note: Do not use the reamer in order to remove metal from the sleeve. Use the reamer in order to remove carbon only.If the sleeve of the injector is installed in the engine, use the tube brush to clean the carbon deposits from the inside of the sleeve.If you choose to clean the angled seat on the injector with a wire brush, the wire brush should not contact the tip of the injector. Failure of the tip and major engine damage may result.Note: Using power tools in order to rotate the material should not be necessary. The carbon in the sleeve is more removable than the carbon at locations that are exposed to higher temperatures.The following procedure is the preferred method of cleaning the sleeve bore.
Place a 38 mm (1.5 inch) square piece of Scotch Brite material on the end of a tapered brush.
Twist the tapered brush with the tap
Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Removal Of The Injector
Illustration 1 g01025360
Remove oil drain plugs (1) at each end of the cylinder head.
Allow the engine oil to drain from the ports in the cylinder head before the injector is removed.
Disconnect harness connector (2).
Illustration 2 g01025365Note: Some of these engines were built without the deflector. During the installation of the unit injectors, the deflectors (Y) should be installed.
Remove bolt (3).
Remove bolt (4).
Illustration 3 g01025366
Place Tooling (A) under clamp (5) on the flywheel side of the injector.
Tooling (A) should be placed at this location in order to gently remove the injector. Use Tooling (A) to remove the injector.
Do not pry at location (Z).
Remove the O-Ring seals (6) from the injector.
Repeat Step 3 through Step 9 for the remainder of the injectors. Steps For Cleaning The Carbon Deposits
Illustration 4 g01025369Cleanliness is very important in the area around the sleeve and the sleeve bore when you are reinstalling the injector. This injector has a metal seal (7) between the bottom of the injector's case and a seat in the cylinder head. Clean the carbon from the seat area that is inside of the cylinder head. Also clean the carbon from the end of the injector if the injector should be reinstalled.The fine grade of the Scotch Brite material is preferred. Scotch Brite is available from the Tools And Shop Products Guide as the abrasive material and as the surface reconditioning pad.If the sleeve of the injector has been removed from the engine, use a reamer to remove carbon deposits from the angled surface.Note: Do not use the reamer in order to remove metal from the sleeve. Use the reamer in order to remove carbon only.If the sleeve of the injector is installed in the engine, use the tube brush to clean the carbon deposits from the inside of the sleeve.If you choose to clean the angled seat on the injector with a wire brush, the wire brush should not contact the tip of the injector. Failure of the tip and major engine damage may result.Note: Using power tools in order to rotate the material should not be necessary. The carbon in the sleeve is more removable than the carbon at locations that are exposed to higher temperatures.The following procedure is the preferred method of cleaning the sleeve bore.
Place a 38 mm (1.5 inch) square piece of Scotch Brite material on the end of a tapered brush.
Twist the tapered brush with the tap
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Caterpillar SIS
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Caterpillar parts catalog:
Parts valve Caterpillar catalog:
7M1296
VALVE-RELIEF
572G, 572R, 572R II, 578, 583R, 587R, 587T, D6H, D6H XL, D6H XR, D6R, D6R II, D6R III, D6R STD, D6T, D6T LGP, D6T LGPPAT, D6T XL, D7F, D7G, D7H, D7R, D7R II, D7R XR, D8H, D8K, D8N, D8R, D9G, PL87
572G, 572R, 572R II, 578, 583R, 587R, 587T, D6H, D6H XL, D6H XR, D6R, D6R II, D6R III, D6R STD, D6T, D6T LGP, D6T LGPPAT, D6T XL, D7F, D7G, D7H, D7R, D7R II, D7R XR, D8H, D8K, D8N, D8R, D9G, PL87
2G1034
VALVE-AIR RELIEF
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14G, 14H, 14H NA, 14M, 160G, 160H, 16...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14G, 14H, 14H NA, 14M, 160G, 160H, 16...
2G3537
VALVE-RELAY
120G, 12G, 130G, 140G, 14G, 16G, 611, 615, 615C, 621, 621B, 623E, 627B, 631D, 633D, 637D, 641B, 651B, 651E, 657B, 657E, 768C, 769C, 772B, 773B
120G, 12G, 130G, 140G, 14G, 16G, 611, 615, 615C, 621, 621B, 623E, 627B, 631D, 633D, 637D, 641B, 651B, 651E, 657B, 657E, 768C, 769C, 772B, 773B
6D1432
VALVE-CHECK
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160G, 160H, 160H ES, 160H NA, 160K, ...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160G, 160H, 160H ES, 160H NA, 160K, ...
7D6864
VALVE
120G, 12G, 130G, 14G, 16G, 621, 621B, 621R, 623, 623B, 627, 627B, 631C, 637, 641B, 650B, 651E, 657B, 657E, 666B
120G, 12G, 130G, 14G, 16G, 621, 621B, 621R, 623, 623B, 627, 627B, 631C, 637, 641B, 650B, 651E, 657B, 657E, 666B
8M3368
VALVE-CHECK
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14G, 14H NA, 14M, 160G, 160H, 160H ES, 160H NA, 1...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14G, 14H NA, 14M, 160G, 160H, 160H ES, 160H NA, 1...
9D1289
VALVE
120G, 12G, 130G, 140G, 14G, 160G, 16G, 611, 613C, 613C II, 615C, 621, 627E, 631C, 633D, 769C, 769D, 771C, 771D, 772, 773B, 773D, 773E, 775B, 775D, 775E, 776, 776C, 777D, 784B, 784C, 785, 785B, 785C, 7...
120G, 12G, 130G, 140G, 14G, 160G, 16G, 611, 613C, 613C II, 615C, 621, 627E, 631C, 633D, 769C, 769D, 771C, 771D, 772, 773B, 773D, 773E, 775B, 775D, 775E, 776, 776C, 777D, 784B, 784C, 785, 785B, 785C, 7...
3D2239
VALVE AS-TIRE
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 130G, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 160H, 160K, 160M...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 130G, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 160H, 160K, 160M...
2D2510
VALVE
16, 16G, 621, 621B, 621E, 621F, 623, 623B, 623E, 627, 627B, 627E, 630A, 630B, 631B, 631C, 633, 633C, 637, 637B, 641, 641B, 650B, 651, 651B, 657, 657B, 666, 776, 777, 824B, 825B, 834, 980C, 988, 992, 9...
16, 16G, 621, 621B, 621E, 621F, 623, 623B, 623E, 627, 627B, 627E, 630A, 630B, 631B, 631C, 633, 633C, 637, 637B, 641, 641B, 650B, 651, 651B, 657, 657B, 666, 776, 777, 824B, 825B, 834, 980C, 988, 992, 9...
8X5444
VALVE GP-RELAY
16G, 16H NA, 611, 615C, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631E, 631G, 633E, 637E, 637G, 651E, 657E, 657G, 769D, 771D, 773D, 775D, 776C, 777D
16G, 16H NA, 611, 615C, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631E, 631G, 633E, 637E, 637G, 651E, 657E, 657G, 769D, 771D, 773D, 775D, 776C, 777D
4D1138
VALVE
120G, 120H, 12G, 12H, 12H NA, 130G, 135H, 140G, 140H, 140H NA, 143H, 14G, 14H, 14H NA, 160G, 160H, 163H, 16G, 16H, 16H NA, 5110B, 518, 5230, 5230B, 528, 621B, 631C, 633C, 639D, 666, 769, 769C, 769D, 7...
120G, 120H, 12G, 12H, 12H NA, 130G, 135H, 140G, 140H, 140H NA, 143H, 14G, 14H, 14H NA, 160G, 160H, 163H, 16G, 16H, 16H NA, 5110B, 518, 5230, 5230B, 528, 621B, 631C, 633C, 639D, 666, 769, 769C, 769D, 7...
5T5119
VALVE GP-TIRE
14G, 14H, 14H NA, 14M, R1700 II
14G, 14H, 14H NA, 14M, R1700 II
1163420
VALVE GP-SWING CUSHION
320B, 320B FM LL, 320B L, 320B U, 321B, 322B L, 325B L, 330B L, 345B, 345B II, 345B II MH, 345B L, 345C, 345C MH, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 385B, 385C, 385C FS, 385C L, 385C L MH...
320B, 320B FM LL, 320B L, 320B U, 321B, 322B L, 325B L, 330B L, 345B, 345B II, 345B II MH, 345B L, 345C, 345C MH, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 385B, 385C, 385C FS, 385C L, 385C L MH...
2369098
VALVE & MTG GP-MAIN CONTROL
966H, 972H
966H, 972H
1199547
VALVE GP-CONTROL
120H ES, 12H ES, 140H ES, 143H, 160H ES, 163H NA
120H ES, 12H ES, 140H ES, 143H, 160H ES, 163H NA
2596736
VALVE GP-CONTROL
416E, 422E, 428E
416E, 422E, 428E
6E0440
VALVE GP-RELIEF
350, 375, 375 L
350, 375, 375 L
2512160
VALVE GP-MAIN CONTROL
385C, 385C L, 385C L MH
385C, 385C L, 385C L MH
2287381
VALVE GP-CHECK
773F, 773G, 773G LRC, 773G OEM, 775F, 775G, 775G LRC, 775G OEM, 777F, 844H, 854K, 990H, 992K, 993K, C27, C32, D10T, D11R, D11T, TH48-E70
773F, 773G, 773G LRC, 773G OEM, 775F, 775G, 775G LRC, 775G OEM, 777F, 844H, 854K, 990H, 992K, 993K, C27, C32, D10T, D11R, D11T, TH48-E70
3467580
VALVE GP-CONTROL
374F L, 390F L
374F L, 390F L
8M2502
VALVE GP-SELECTOR
583K, 594, 594H, D8H, D8K, D9G, D9H
583K, 594, 594H, D8H, D8K, D9G, D9H
3492031
VALVE AR-MAIN CONTROL
314E CR, 314E LCR
314E CR, 314E LCR
1733204
VALVE GP-PILOT
D10R, D11R
D10R, D11R