7G1349 CONTROL AR-HYDRAULIC Caterpillar parts
D6D
Rating:
Alternative (cross code) number:
CA7G1349
7G-1349
7G1349
CA7G1349
7G-1349
7G1349
TRACK-TYPE TRACTOR,
Compatible equipment models: 7G1349:
Information:
Illustration 1. Typical example of carbon build-up on intake valves.Engines with direct injection (DI) will normally have more carbon build-up on the top land area of the piston than engines with precombustion chambers (PC). This is a result of the differences in the combustion procedure. Also, in comparison to the PC pistons, the DI pistons have more clearance between the top land and the cylinder wall. Illustration 2 shows a typical example of carbon build-up on a DI piston.
If carbon build-up looks to be more than normal on your engine, the areas that follow can be checked to make sure engine performance will be kept at an acceptable level.
Illustration 2. Typical example of carbon build-up on pistons.1. Check the amount of inlet air restriction. See the Testing and Adjusting Section of the Service Manual for your engine for the correct measurement. Some possible causes of air restrictions are: a. Plugged (dirty) air cleaner or soot filter.b. Crankcase fumes in the engine room or compartment (can cause a build-up in the air cleaner filter).c. Restriction in inlet air lines.2. Check the ports of the inlet manifold. They must be dry. If they are wet, the turbocharger compressor seal is probably damaged.3. Make sure 6N7174 Shields have been correctly installed on all valves in 3408 and 3412 Engines. Operation of these engines without shields can cause build-up on inlet valves.4. Check inlet valve stem and valve guide diameters. The acceptable diameters are shown in the chart. Too much clearance will permit oil to come down the inlet valve guides. 5. Check the crankcase pressure. Make sure the fumes disposal tube is not closed or decreased by a restriction. The fumes disposal tube must be removed when the crankcase pressure is checked.6. Check to make sure the thermostats (temperature regulators) operate correctly. See the Testing And Adjusting Section of the Service Manual for the correct opening temperatures. Low coolant temperatures can increase carbon build-up.7. Check the oil consumption records for the engine. If oil consumption is high, it is possible that the piston rings are worn or damaged. This will permit more than the normal amount of oil to get past the piston rings.8. Make sure the oil used is a Service Classification CD oil. Also, check to make sure the Total Base Number (TBN) for the oil used is acceptable with the percent of sulfur in your fuel.
Caterpillar SIS machinery equipment:
Caterpillar SIS
D6D TRACTOR / DIRECT DRIVE / 01Y00460-UP (MACHINE) POWERED BY 3306 ENGINE »
7G-1349
CONTROL AR-HYDRAULIC
D6D TRACTOR - SPECIAL APPLICATION / DIRECT DRIVE / 05X00001-00852 (MACHINE) POWERED BY 3306 ENGINE »
7G-1349
CONTROL AR-HYDRAULIC
D6D TRACTOR / DIRECT DRIVE / 05X00853-UP (MACHINE) POWERED BY 3306 ENGINE »
7G-1349
CONTROL AR-HYDRAULIC
Parts control Caterpillar catalog:
8P3076
CONTROL AR-HYDRAULIC
153, D6D, D6E
153, D6D, D6E
8P3077
CONTROL AR-HYDRAULIC
153, D6D, D6E
153, D6D, D6E
8P5693
CONTROL GP-WINCH
55, D5B, D6D
55, D5B, D6D
3G3446
CONTROL VALVE GROUP
D5, D5B, D6C, D6D, D6D SR, D6E SR
D5, D5B, D6C, D6D, D6D SR, D6E SR
6N3630
CONTROL GP-TORQUE
980B, D5, D6C, D6D
980B, D5, D6C, D6D
2Y9820
CONTROL GP-GOVERNOR
D5B, D6D, D6D SR
D5B, D6D, D6D SR
9W3766
CONTROL GP-DECELERATOR
D6D, D6E SR
D6D, D6E SR
6N3586
CONTROL GP-TORQUE
120G, 130G, 140G, 14G, 561D, 571G, 572G, 627B, 977K, 977L, D5B, D6C, D6D, D7F, D7G
120G, 130G, 140G, 14G, 561D, 571G, 572G, 627B, 977K, 977L, D5B, D6C, D6D, D7F, D7G
1310230
CONTROL GP-MONITOR
3508, 3508B, 3512, 3512B, 3516, 3516B
3508, 3508B, 3512, 3512B, 3516, 3516B
2597501
CONTROL AR-AUXILIARY
320D, 320D FM, 320D L, 323D L, 323D LN
320D, 320D FM, 320D L, 323D L, 323D LN
4428122
CONTROL GP-TRANSMISSION
621K, 627K, 627K LRC
621K, 627K, 627K LRC
3718034
CONTROL & MTG GP-ENGINE ELEK
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ
4507415
CONTROL GP-COMMUNICATION
844K, 990K
844K, 990K
2890558
CONTROL & MTG GP-ENGINE ELEK
3606, 3608, C280-6, C280-8
3606, 3608, C280-6, C280-8
2357981
CONTROL GP-EMCP ELECTRONIC
3406C, 3456, C18
3406C, 3456, C18
2865771
CONTROL GP-JOYSTICK
D7E, D7E LGP
D7E, D7E LGP
2198022
CONTROL GP-DIRECTION & SPEED
3126, 3126B, 3196, 3406E, 3412E, C-12, C12, C15, C18, C30, C32, C7, C9
3126, 3126B, 3196, 3406E, 3412E, C-12, C12, C15, C18, C30, C32, C7, C9