2783940 SUPPORT AS-ENCLOSURE Caterpillar parts
323D LN
Rating:
Alternative (cross code) number:
CA2783940
278-3940
2783940
CA2783940
278-3940
2783940
EXCAVATOR, MOBILE HYD POWER UNIT,
Compatible equipment models: 2783940:
Number on catalog scheme:
36
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Information:
Installation Procedure
Ensure that the turbocharger is clean and free from damage. Inspect the turbocharger for wear. Refer to Systems Operation, Testing and Adjusting, "Turbocharger - Inspect" for more information. If the turbocharger is worn, the complete turbocharger must be replaced.
Test the turbocharger actuator for correct operation. Refer to Systems Operation, Testing and Adjusting, "Wastegate - Test" for more information. If the actuator is damaged or the actuator does not operate within the specified limits, the complete turbocharger must be replaced.
Illustration 1 g03334762
Clean the gasket surface of the exhaust manifold and the gasket surface of turbocharger (8).
If necessary, install the studs from the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install" for the correct procedure.
If necessary, Install studs (22) to turbocharger (8). Tighten the studs to a torque of 25 N m (221 lb in).
Position a new gasket (20) (not shown). onto the exhaust manifold.
Install turbocharger (8) to the exhaust manifold. Note: Do not use the actuator rod to lift the turbocharger.
Install nuts (19) to turbocharger (8). Support the weight of the turbocharger as the nuts are installed.
Tighten nuts (19) to a torque of 25 N m (18 lb ft).
Ensure that tube assembly (26) is free from restriction and damage.
Install a new gasket (24) (not shown) onto tube assembly (26).
Position tube assembly (26) onto turbocharger (8). Install bolts (25) finger tight.
Position a new gasket (27) (not shown) between tube assembly (26) and the cylinder block. Install bolts (28) finger tight.
Tighten bolts (25) and bolts (28) to a torque of 10 N m (89 lb in).
Lubricate the bearings of turbocharger (8) with clean engine oil through the oil inlet port. Rotate the shaft of the turbocharger in order to distribute the lubricant.
Install a new sealing washer (23) (not shown) onto banjo bolt (21).
Install banjo bolt (21) to tube assembly (18). Install a new sealing washer (23) (not shown) between tube assembly (18) and turbocharger (8).
Tighten banjo bolt (21) to a torque of 18 N m (159 lb in).
Tighten bolt (17) for clip (16) to a torque of 10 N m (89 lb in).
Illustration 2 g03334548
Clean the gasket surfaces of elbow (13), turbocharger (8), and Aftertreatment Regeneration Device (ARD) (15) (not shown).
Position a new gasket (10) (not shown) onto Aftertreatment Regeneration Device (ARD) (15) (not shown).
Install elbow (13) onto Aftertreatment Regeneration Device (ARD) (15) (not shown). Install bolts (12) and nuts (9) finger tight.
Position a new gasket (11) (not shown) between elbow (13) and turbocharger (8). Install bolts (12) finger tight.
Tighten bolts (12) and bolts (14) and nuts (9) to a torque of 25 N m (221 lb in).
Illustration 3 g03334546
Ensure that hose assembly (4) and hose assembly (6) are free from restriction or damage.
Ensure that hose clamp (3) and hose clamp (5) (not
Ensure that the turbocharger is clean and free from damage. Inspect the turbocharger for wear. Refer to Systems Operation, Testing and Adjusting, "Turbocharger - Inspect" for more information. If the turbocharger is worn, the complete turbocharger must be replaced.
Test the turbocharger actuator for correct operation. Refer to Systems Operation, Testing and Adjusting, "Wastegate - Test" for more information. If the actuator is damaged or the actuator does not operate within the specified limits, the complete turbocharger must be replaced.
Illustration 1 g03334762
Clean the gasket surface of the exhaust manifold and the gasket surface of turbocharger (8).
If necessary, install the studs from the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install" for the correct procedure.
If necessary, Install studs (22) to turbocharger (8). Tighten the studs to a torque of 25 N m (221 lb in).
Position a new gasket (20) (not shown). onto the exhaust manifold.
Install turbocharger (8) to the exhaust manifold. Note: Do not use the actuator rod to lift the turbocharger.
Install nuts (19) to turbocharger (8). Support the weight of the turbocharger as the nuts are installed.
Tighten nuts (19) to a torque of 25 N m (18 lb ft).
Ensure that tube assembly (26) is free from restriction and damage.
Install a new gasket (24) (not shown) onto tube assembly (26).
Position tube assembly (26) onto turbocharger (8). Install bolts (25) finger tight.
Position a new gasket (27) (not shown) between tube assembly (26) and the cylinder block. Install bolts (28) finger tight.
Tighten bolts (25) and bolts (28) to a torque of 10 N m (89 lb in).
Lubricate the bearings of turbocharger (8) with clean engine oil through the oil inlet port. Rotate the shaft of the turbocharger in order to distribute the lubricant.
Install a new sealing washer (23) (not shown) onto banjo bolt (21).
Install banjo bolt (21) to tube assembly (18). Install a new sealing washer (23) (not shown) between tube assembly (18) and turbocharger (8).
Tighten banjo bolt (21) to a torque of 18 N m (159 lb in).
Tighten bolt (17) for clip (16) to a torque of 10 N m (89 lb in).
Illustration 2 g03334548
Clean the gasket surfaces of elbow (13), turbocharger (8), and Aftertreatment Regeneration Device (ARD) (15) (not shown).
Position a new gasket (10) (not shown) onto Aftertreatment Regeneration Device (ARD) (15) (not shown).
Install elbow (13) onto Aftertreatment Regeneration Device (ARD) (15) (not shown). Install bolts (12) and nuts (9) finger tight.
Position a new gasket (11) (not shown) between elbow (13) and turbocharger (8). Install bolts (12) finger tight.
Tighten bolts (12) and bolts (14) and nuts (9) to a torque of 25 N m (221 lb in).
Illustration 3 g03334546
Ensure that hose assembly (4) and hose assembly (6) are free from restriction or damage.
Ensure that hose clamp (3) and hose clamp (5) (not
Caterpillar SIS machinery equipment:
Caterpillar parts catalog:
Parts support Caterpillar catalog:
2896461
SUPPORT AS-ENCLOSURE
323D LN, 323D SA
323D LN, 323D SA
2358856
SUPPORT GP-SEAT
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 311D LRR, 312D, 312D L, 315D L, 319D, 320C FM, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 322C, 322C FM, 323D L, 323D ...
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 311D LRR, 312D, 312D L, 315D L, 319D, 320C FM, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 322C, 322C FM, 323D L, 323D ...
2293756
SUPPORT
312C, 312D, 315C, 315D L, 318C, 319C, 319D, 320C, 322C, 323D L, 323D LN, 324D, 324D L, 324D LN, 325C, 325D, 325D L, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D L, 336D LN, 345C, 345C L,...
312C, 312D, 315C, 315D L, 318C, 319C, 319D, 320C, 322C, 323D L, 323D LN, 324D, 324D L, 324D LN, 325C, 325D, 325D L, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D L, 336D LN, 345C, 345C L,...
1734816
SUPPORT AS
318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D2, 320D2 GC, 320D2 L, 322C, 322C FM, 323D L, 323D LN, 323D SA, 323D2 L, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C...
318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D2, 320D2 GC, 320D2 L, 322C, 322C FM, 323D L, 323D LN, 323D SA, 323D2 L, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C...
2457925
SUPPORT AS
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 307D, 311D LRR, 311F LRR, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, ...
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 307D, 311D LRR, 311F LRR, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, ...
2597233
SUPPORT AS
320D L, 320D LN, 323D L, 323D LN, 323D SA
320D L, 320D LN, 323D L, 323D LN, 323D SA
2597287
SUPPORT AS-CONDENSER
320D L, 320D LN, 323D L, 323D LN, 323D SA
320D L, 320D LN, 323D L, 323D LN, 323D SA
3301288
SUPPORT AS
320D L, 320D LN, 323D LN, 323D SA
320D L, 320D LN, 323D LN, 323D SA
2485866
SUPPORT
323D LN
323D LN
3811000
SUPPORT GP-GENERATOR BOX
3516B, 3516C, C175-16, C175-20
3516B, 3516C, C175-16, C175-20
3633345
SUPPORT GP-FAN
836K, 988K
836K, 988K
7N9078
SUPPORT GP-ENGINE
3406C, 3408, 3408C, 3408E, 3412, 3412C, 3412E, C27, C32, G3406, G3408, G3408B, G3408C, G3412, PR-1000, PR-750B, TH48-E70
3406C, 3408, 3408C, 3408E, 3412, 3412C, 3412E, C27, C32, G3406, G3408, G3408B, G3408C, G3412, PR-1000, PR-750B, TH48-E70
1035846
SUPPORT GP-ENGINE
953B, 953C
953B, 953C
3039886
SUPPORT AS-ENCLOSURE
315D L, 319D L
315D L, 319D L
2685115
SUPPORT GP-SEAT
308C, 314C, 321C
308C, 314C, 321C
2756411
SUPPORT AS-RADIATOR
C27, C32
C27, C32
2145179
SUPPORT GP-ACCESSORY MODULE
3606, 3608, 3612, 3616, C280-12, C280-16, C280-6, C280-8, G3606, G3606B, G3608, G3612, G3616
3606, 3608, 3612, 3616, C280-12, C280-16, C280-6, C280-8, G3606, G3606B, G3608, G3612, G3616