6Y8171 BEARING-CARRIER ROLLER Caterpillar parts
330C, 330D L, 330D MH, 345B, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 350, 365B, 365B II, 365B L, 365C, 3...
Rating:
Alternative (cross code) number:
CA6Y8171
6Y-8171
6Y8171
CA6Y8171
6Y-8171
6Y8171
Weight: 0.99 pounds 0 kg.
Information:
ID
78.38
mm
OD
85.24
mm
WIDTH
58.5
mm
EXCAVATOR, UNDERCARRIAGE,
Compatible equipment models: 6Y8171:
Number on catalog scheme:
5A
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Information:
Removal Procedure
Start By:
Remove the aftercooler, if necessary. Refer to Disassembly and Assembly, "Aftercooler - Remove".
Remove the camshaft gear. Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove".
Remove the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install".
Remove the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install".
Remove the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing - Remove and Install ".
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.
Illustration 1 g01067189
Remove bolts (2) and thrust plate (1).
Illustration 2 g01067187
Remove sealing plate (3) and adapter assembly (4).
Illustration 3 g01067186
Remove O-ring seal (5) and O-ring seal (6) from sealing plate (3).
Illustration 4 g01067185
Disconnect hose assembly (8) at the cylinder head. Remove the bolt and the clip that secures the hose assembly to the front housing. Remove the bolt and the clip that secures the hose assembly to the cylinder head.
Disconnect hose assembly (9) at the cylinder head.
Remove bolt (14) and the breather tube from the cylinder head.
Remove bolts (7) and remove the bracket from the cylinder head.
Disconnect boost pressure sensor (10).
Disconnect inlet air temperature sensor (13).
Remove bolts (12) and remove air inlet elbow (11) from the cylinder head, if necessary. Remove the gasket from the cylinder head.
Illustration 5 g01067444
Attach a suitable lifting device to cylinder head (16). The weight of cylinder head (16) is approximately 235 kg (518 lb). Ensure that all of the following items are clear from the cylinder head: harness assemblies, tube assemblies and hose assemblies.
Remove cylinder head bolts (15).
Carefully remove cylinder head (16).
Illustration 6 g01067188
Remove cylinder head gasket (17).
Remove spacer plate (18).
Remove seals (22) and seal (20).
Remove spacer plate gasket (21).
Remove O-ring seal (19) from the dowel in the cylinder block.
Start By:
Remove the aftercooler, if necessary. Refer to Disassembly and Assembly, "Aftercooler - Remove".
Remove the camshaft gear. Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove".
Remove the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install".
Remove the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install".
Remove the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing - Remove and Install ".
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.
Illustration 1 g01067189
Remove bolts (2) and thrust plate (1).
Illustration 2 g01067187
Remove sealing plate (3) and adapter assembly (4).
Illustration 3 g01067186
Remove O-ring seal (5) and O-ring seal (6) from sealing plate (3).
Illustration 4 g01067185
Disconnect hose assembly (8) at the cylinder head. Remove the bolt and the clip that secures the hose assembly to the front housing. Remove the bolt and the clip that secures the hose assembly to the cylinder head.
Disconnect hose assembly (9) at the cylinder head.
Remove bolt (14) and the breather tube from the cylinder head.
Remove bolts (7) and remove the bracket from the cylinder head.
Disconnect boost pressure sensor (10).
Disconnect inlet air temperature sensor (13).
Remove bolts (12) and remove air inlet elbow (11) from the cylinder head, if necessary. Remove the gasket from the cylinder head.
Illustration 5 g01067444
Attach a suitable lifting device to cylinder head (16). The weight of cylinder head (16) is approximately 235 kg (518 lb). Ensure that all of the following items are clear from the cylinder head: harness assemblies, tube assemblies and hose assemblies.
Remove cylinder head bolts (15).
Carefully remove cylinder head (16).
Illustration 6 g01067188
Remove cylinder head gasket (17).
Remove spacer plate (18).
Remove seals (22) and seal (20).
Remove spacer plate gasket (21).
Remove O-ring seal (19) from the dowel in the cylinder block.
Cat SIS web machinery list:
Parts bearing Caterpillar catalog:
325C, 325D, 325D L, 329D, 329D L, 330C, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336E L, 340D L, 345C L, 345D, 349D L
325C, 330C, 330C FM, 330C L
325C, 330C, 330C FM, 330C L
330C, 330C L
325C, 330C, 330C L, 330D L
345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L
350, 350 L
330, 330 FM L, 330 L, 330B, 330B L, 345B, 345B L, W330B
330B L, 330C, 330C L, W330B
345B, 345B II, 345B II MH, 345B L, 345C, 365B, 365B II, W345B II
345B II, 345B L, 345C, 365B, 365B II, 365B L
365B, 375, 375 L, 5080
7Y0992
BEARING-FRONT IDLER
375, 375 L, 5080
375, 375 L, 5080
6Y7599
BEARING-IDLER
345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 375, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5080, 5090B
345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 375, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5080, 5090B
7Y0818
BEARING-ROLLER
365B, 375, 375 L, 5080
365B, 375, 375 L, 5080
7Y0846
BEARING-ROLLER
365B, 375, 375 L, 5080
365B, 375, 375 L, 5080
6I8830
BEARING
5130, 5130B
5130, 5130B
322, 322 FM L, 322 LN, 322B, 322B L, 322B LN, 322C, 322C FM, 324D FM, 324D FM LL, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325C FM, 325D FM, 325D FM LL, 325D L, 330, 330B, 330B L, 330C, 330C FM, 330C L...
365B, 375, 375 L, 5080
350, 350 L, 365B, 365B II, 365C, 375, 375 L, 385C, 385C FS, 5080, 5090B
365B, 365B II, 365C, 365C L, 375, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5080, 5090B
6Y8172
BEARING-CARRIER ROLLER
330C, 330D L, 330D MH, 345B, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 350, 365B, 365B II, 365B L, 365C, 3...
330C, 330D L, 330D MH, 345B, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 350, 365B, 365B II, 365B L, 365C, 3...