2979178 SPRING Caterpillar parts
374D L, 374F L
Rating:
Alternative (cross code) number:
CA2979178
297-9178
2979178
CA2979178
297-9178
2979178
Weight: 286 pounds 129 kg.
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2024-11-21
2021-05-12
2021-05-08
2021-05-07
2021-05-07
Number on catalog scheme:
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Information:
Installation Procedure For Conversion Kit
Illustration 1 g02083474
Typical former steering control unit (A) 12 point bolts (B) Machine end cap (C) Gerotor outer ring (D) Gerotor star (E) Spacer (F) Metering body (G) Square section ring
Remove 12 point bolts (A)
Remove machine end caps (B)
Remove gerotor outer ring (C) and square section ring (G)
Remove spacer (E)
Remove square section ring (G) from metering body (F)
Illustration 2 g02083613
Typical converted steering control unit (AA) six point bolts (BB) Ground steel end cap (C) Gerotor outer ring (D) Gerotor star (EE) Spacer (F) Metering body (GG) New round section o-ring
Install round cross section o-ring (GG) in groove of metering body (F.)
Install round cross section o-ring (GG) in groove of spacer (EE)
Install spacer (EE) with o-ring (GG) facing away from metering body (F)
Install gerotor outer ring (C) with o-ring (GG) facing away from metering body (F) Note: If, the gerotor star (D) has a full length spline you can turn the spline with the outer ring. If the star has a partial spline, turn the outer ring only.
Install round cross section o-ring (GG) in the groove of gerotor outer ring (C)
Install ground steel end cap (BB) with new, self sealing cap screws (AA)
Use a six point (E10) Torx drive to dry torque all seven bolts (AA) to 14.12 2.83 N m (10.41 2.09 lb ft). Then final torque to 28.25 2.83 N m (20.83 2.09 lb ft) in the sequence that is numbered 1 through 7 in the magnified view of illustration 2Shaft Seal Replacement For Low Input Torque Steering Units
Illustration 3 g02084883
Standard input torque steering control unit. (K) Shaft seal (P) Seal gland bushing without groovesNote: The shaft seal for this unit has not been replaced.
Illustration 4 g02085213
Low input torque steering control unit (M) Former three piece shaft seal (N) New one piece shaft seal (T) Grooves in seal gland bushingTo determine low or standard torque, examine the seal gland bushing for grooves. Grooves identify low torque units.Note: The new shaft seal for the former (low torque) metering pump groups, is included with the seal kit listed in the chart.
Illustration 1 g02083474
Typical former steering control unit (A) 12 point bolts (B) Machine end cap (C) Gerotor outer ring (D) Gerotor star (E) Spacer (F) Metering body (G) Square section ring
Remove 12 point bolts (A)
Remove machine end caps (B)
Remove gerotor outer ring (C) and square section ring (G)
Remove spacer (E)
Remove square section ring (G) from metering body (F)
Illustration 2 g02083613
Typical converted steering control unit (AA) six point bolts (BB) Ground steel end cap (C) Gerotor outer ring (D) Gerotor star (EE) Spacer (F) Metering body (GG) New round section o-ring
Install round cross section o-ring (GG) in groove of metering body (F.)
Install round cross section o-ring (GG) in groove of spacer (EE)
Install spacer (EE) with o-ring (GG) facing away from metering body (F)
Install gerotor outer ring (C) with o-ring (GG) facing away from metering body (F) Note: If, the gerotor star (D) has a full length spline you can turn the spline with the outer ring. If the star has a partial spline, turn the outer ring only.
Install round cross section o-ring (GG) in the groove of gerotor outer ring (C)
Install ground steel end cap (BB) with new, self sealing cap screws (AA)
Use a six point (E10) Torx drive to dry torque all seven bolts (AA) to 14.12 2.83 N m (10.41 2.09 lb ft). Then final torque to 28.25 2.83 N m (20.83 2.09 lb ft) in the sequence that is numbered 1 through 7 in the magnified view of illustration 2Shaft Seal Replacement For Low Input Torque Steering Units
Illustration 3 g02084883
Standard input torque steering control unit. (K) Shaft seal (P) Seal gland bushing without groovesNote: The shaft seal for this unit has not been replaced.
Illustration 4 g02085213
Low input torque steering control unit (M) Former three piece shaft seal (N) New one piece shaft seal (T) Grooves in seal gland bushingTo determine low or standard torque, examine the seal gland bushing for grooves. Grooves identify low torque units.Note: The new shaft seal for the former (low torque) metering pump groups, is included with the seal kit listed in the chart.
Caterpillar parts catalog:
Parts spring Caterpillar catalog:
24M, 3406E, 3456, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5090B, 583T, 587T, 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637...
16, 16G, 16H NA, 245, 24H, 24M, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412D, 3412E, 3456, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 365C, 365C L, 365C L MH, 374...
246C, 256C, 262C, 262C2, 272C, 277C, 277C2, 279C, 279C2, 2864C, 287C, 287C2, 289C, 289C2, 297C, 299C, 330D L, 336D L, 336D2 L, 345C, 345C L, 345C MH, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 37...
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 303, 304, 305, 311C, 311D LRR, 312C L, 312D, 312D L, 312D2, 313D, 314C, 314D CR, 314D LCR, 315B FM L, 315C, 320B FM LL, 320C, 320C FM, 320...
303, 303.5C, 303.5D, 303.5E, 303C CR, 304, 304C CR, 304D CR, 304E, 305, 305.5, 305.5D, 305.5E, 305C CR, 305D CR, 305E, 306, 306E, 307, 307B, 307C, 307D, 307E, 308C, 308D, 308E, 308E CR, 308E SR, 308E2...
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14H, 14H NA, 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 16H, 16H NA, 24H, 3...
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,...
365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5090B, 69D, 769D, 770, 770G, 770G OEM, 771D, 772, 772G, 772G OEM, 773D, 773E, 773F, 773G, ...
365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5090B, 69D, 769D, 770, 770G, 770G OEM, 771D, 772, 772G, 772G OEM, 773D, 773E, 773F, 773G, ...
365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 5090B, 769D, 770, 770G, 770G OEM, 771D, 772, 772G, 772G OEM, 773D, 773E, 773F, 773G, 773G ...
365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5090B
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D M...
3350498
SPRING
374D L, 390D, 390D L
374D L, 390D, 390D L
2705820
SPRING
374D L, 390D, 390D L
374D L, 390D, 390D L
3228705
SPRING
390D, 390D L
390D, 390D L
2851622
SPRING
374D L, 390D, 390D L
374D L, 390D, 390D L
3698572
SPRING-CHECK VALVE
325D L, 374D L, 374F L, 390D, 390D L, 390F L
325D L, 374D L, 374F L, 390D, 390D L, 390F L
3353038
SPRING
325D L, 374D L, 374F L, 390D, 390D L, 390F L
325D L, 374D L, 374F L, 390D, 390D L, 390F L
2947687
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336E H, 336E LH
336E H, 336E LH
2646065
SPRING
336E H, 336E LH
336E H, 336E LH
3852326
SPRING
336E L
336E L
3154387
SPRING
374D L
374D L
3154386
SPRING
374D L
374D L
3421852
SPRING
374D L
374D L