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7J4882 HYDRAULIC PUMP ASSEMBLY Part of 9S7850 & 9S7852 Arrangements listed on Page 10 173B HYDRAULIC CONTROL


HYDRAULIC SYSTEM
PUMP GP

HYDRAULIC CONTROL 173B HYDRAULIC CONTROL 34H
 173B & 183B HYD. CONTROLS 34H00001-UP UEG0274S 173B 34H   (1965)

HYDRAULIC SYSTEM

PUMP GP
HYDRAULIC PUMP ASSEMBLY
3J-8502 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
7J-0614 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
7J-4882 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
4J-6378 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
4J-6378 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
6J-9893 HYDRAULIC PUMP ASSEMBLY
 

#UEG0274S0130
 

7J-4882: HYDRAULIC PUMP ASSEMBLY

7J4882 HYDRAULIC PUMP ASSEMBLY
Part of 9S7850 & 9S7852 Arrangements listed on Page 10
c139784 UEG0274S
7J4882 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1595 [8] BOLT  
2. 6J-2391 [8] WASHER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  6J-9828 [1] KIT (Seal)  
 

#UEG0274S0131
 

4J-6378: HYDRAULIC PUMP ASSEMBLY

4J6378 HYDRAULIC PUMP ASSEMBLY--Type 1
Part of 5J5220, 5S6871, 5J5223, 5S6873, 5S6486 & 5S6487 Arrangements listed on Pages 5, 7, 8 & 9
c91916 UEG0274S
4J6378 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-1667 J [2] SCREW  
  4J-1659 J [1] RING  
  2H-3931 O [1] SEAL  
  1S-0668 O [1] RING  
  1H-7339 O [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-3548 [1] WASHER  
  4J-9222 O [1] RING  
  4F-7952 O [1] SEAL  
  4J-1664 J [1] PLATE  
  1D-4597 [4] BOLT  
  4J-8486 J [1] ROTOR  
  4J-1662 J [1] VANE KIT  
    (CONSISTS OF 12 VANES)
  4B-2538 H [2] SCREW  
  4K-0400 H [1] PLATE ASSEM.  
  4K-0410 [1] BEARING  
    (PART OF PLATE ASSEM. 4K400)
  4J-1665 J [2] PIN  
  4J-1666 J [1] PLATE  
  1B-4206 [2] NUT  
  3B-4510 [2] LOCKWASHER  
    (NOT PART OF PUMP ASSEM. 4J6378)
  4J-4670 [1] COVER  
  4J-5251 H [1] ROTOR  
  2J-8163 O [1] SEAL  
  5J-0079 H [2] PIN  
  2H-3928 O [1] SEAL  
  2J-8165 [1] BODY  
  5F-3106 [1] SEAL  
    (NOT PART OF PUMP ASSEM. 4J6378)
  2J-8166 H [1] PLATE  
  4J-9225 O [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8170 O [1] WIPER  
  4J-6353 [1] SHAFT  
  2J-8169 O [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 O [1] SEAL  
  4J-9220 O [1] RING  
  4K-1791 H [1] RING  
  4K-0735 H [1] VANE KIT  
    (CONSISTS OF 10 VANES AND 10 INSERTS)
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  4J-9285 [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED J)
  4K-1944 [1] KIT (CARTRIDGE)  
    (38 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED H)
  4J-8489 [1] KIT (CARTRIDGE)  
    (11 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED J)
 

#UEG0274S0132
 

4J-6378: HYDRAULIC PUMP ASSEMBLY

4J6378 HYDRAULIC PUMP ASSEMBLY--Type 2
Part of 5J5220, 5S6871, 5J5223, 5S6873, 5S6486 & 5S6487 Arrangements listed on Pages 5, 7, 8 & 9
c123624 UEG0274S
4J6378 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-1667 J [2] SCREW  
  4J-1659 J [1] RING  
  2H-3931 O [1] SEAL  
  1S-0668 O [1] RING  
  1H-7339 O [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-3548 [1] WASHER  
  4J-9222 O [1] RING  
  4F-7952 O [1] SEAL  
  4J-1664 J [1] PLATE  
  1D-4597 [4] BOLT  
  4J-8486 J [1] ROTOR  
  4J-1662 J [1] VANE KIT  
    (CONSISTS OF 12 VANES)
  4B-2538 H [2] SCREW  
  6J-7622 HC [1] PLATE ASSEM.  
  [1] BEARING  
    (PART OF PLATE ASSEM. 6J7622)
  4J-1665 J [2] PIN  
  4J-1666 J [1] PLATE  
  1B-4206 [2] NUT  
  3B-4510 [2] LOCKWASHER  
    (NOT PART OF PUMP ASSEM. 4J6378)
  4J-4670 [1] COVER  
  4J-5251 H [1] ROTOR  
  2J-8163 O [1] SEAL  
  5J-0079 H [2] PIN  
  2H-3928 O [1] SEAL  
  2J-8165 [1] BODY  
  5F-3106 [1] SEAL  
    (NOT PART OF PUMP ASSEM. 4J6378)
  6J-7621 HC [1] PLATE  
  4J-9225 O [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8170 O [1] WIPER  
  4J-6353 [1] SHAFT  
  2J-8169 O [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 O [1] SEAL  
  4J-9220 O [1] RING  
  4K-1791 H [1] RING  
  4K-0735 H [1] VANE KIT  
    (CONSISTS OF 10 VANES AND 10 INSERTS)
  4J-9285 [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED J)
  4K-1944 [1] KIT (CARTRIDGE)  
    (38 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED H)
  4J-8489 [1] KIT (CARTRIDGE)  
    (11 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED J)
    (NOT PART OF PUMP ASSEM. 4J6378)
  C   INDICATES CHANGE FROM PREVIOUS
 

#UEG0274S0133
 

6J-9893: HYDRAULIC PUMP ASSEMBLY

6J9893 HYDRAULIC PUMP ASSEMBLY--Type 1
Part of 5J5220, 5S6871, 5J5223, 5S6873, 5S6486 & 5S6487 Arrangements listed on Pages 5, 7, 8 & 9
c128052 UEG0274S
6J9893 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  J [2] SCREW  
  J [1] RING  
  2H-3931 O [1] SEAL  
  1S-0668 O [1] RING  
  1H-7339 O [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-3548 [1] WASHER  
  4J-9222 O [1] RING  
  4F-7952 O [1] SEAL  
  J [1] PLATE  
  1D-4597 [4] BOLT  
  J [1] ROTOR  
  J [10] VANE  
  J [10] INSERT  
  H [2] SCREW  
  H [1] PLATE ASSEM.  
  H [1] BEARING  
  J [2] PIN  
  O [1] PLATE  
  1B-4206 [2] NUT  
  3B-4510 [2] LOCKWASHER  
    (NOT PART OF PUMP ASSEM. 6J9893)
  4J-4670 [1] COVER  
  H [1] ROTOR  
  2J-8163 O [1] SEAL  
  H [2] PIN  
  2H-3928 O [1] SEAL  
  2J-8165 [1] BODY  
  5F-3106 [1] SEAL  
    (NOT PART OF PUMP ASSEM. 6J9893)
  H [1] PLATE  
  4J-9225 O [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8170 O [1] WIPER  
  4J-6353 [1] SHAFT  
  7J-0573 [1] CARTRIDGE ASSEM.  
    (38 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED H)
  7J-0580 [1] CARTRIDGE ASSEM.  
    (11 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED J)
  2J-8169 O [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 O [1] SEAL  
  4J-9220 O [1] RING  
  H [1] RING  
  H [10] VANE  
  H [10] INSERT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  4J-9285 [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED J)
 

#UEG0274S0134
 

6J-9893: HYDRAULIC PUMP ASSEMBLY

6J9893 HYDRAULIC PUMP ASSEMBLY--Type 2
Part of 5J5220, 5S6871, 5J5223, 5S6873, 5S6486 & 5S6487 Arrangements listed on Pages 5, 7, 8 & 9
c110532 UEG0274S
6J9893 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  J [2] SCREW  
  J [1] RING  
  2H-3931 O [1] SEAL  
  1S-0668 O [1] RING  
  1H-7339 O [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-9222 O [1] RING  
  4F-7952 O [1] SEAL  
  J [1] PLATE  
  1D-4597 [4] BOLT  
  J [1] ROTOR  
  J [10] VANE  
  J [10] INSERT  
  H [2] SCREW  
  H [1] PLATE ASSEM.  
  H [1] BEARING  
  J [2] PIN  
  J [1] PLATE ASSEM.  
  1B-4206 [2] NUT  
  3B-4510 [2] LOCKWASHER  
    (NOT PART OF PUMP ASSEM. 6J9893)
  4J-4670 [1] COVER  
  H [1] ROTOR  
  2J-8163 O [1] SEAL  
  H [2] PIN  
  2H-3928 O [1] SEAL  
  2J-8165 [1] BODY  
  5F-3106 [1] SEAL  
    (NOT PART OF PUMP ASSEM. 6J9893)
  H [1] PLATE  
  4J-9225 O [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8170 O [1] WIPER  
  4J-6353 [1] SHAFT  
  7J-0573 [1] CARTRIDGE ASSEM.  
    (38 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED H)
  7J-7966 RC [1] CARTRIDGE ASSEM.  
    (11 GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED J)
  2J-8169 O [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 O [1] SEAL  
  4J-9220 O [1] RING  
  H [1] RING  
  H [10] VANE  
  H [10] INSERT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  4J-9285 [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED J)
  C   INDICATES CHANGE FROM PREVIOUS
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0274S0135
 

9J-8201: PUMP GP-VANE

9J8201 VANE PUMP GROUP--Type 1
Provides Field Replacement for 6J9893 Pump Assembly shown on Page 93
c167751 UEG0274S
9J8201 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2H-3931 J [1] SEAL  
  1S-0668 J [1] RING  
  1H-7339 J [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-9222 J [1] RING  
  4F-7952 J [1] SEAL  
  1D-4597 [4] BOLT  
  4J-4670 [1] COVER  
  2J-8163 J [1] SEAL  
  2H-3928 J [1] SEAL  
  9J-5123 [1] BODY  
  4J-9225 J [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  9J-5091 [1] SHAFT  
  9J-5110 L [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED J)
  7J-0573 [1] CARTRIDGE ASSEM.  
    (38 U.S. GALLONS PER MINUTE)
  7J-7966 R [1] CARTRIDGE ASSEM.  
    (11 U.S. GALLONS PER MINUTE)
  4H-0407 J [1] PLUG  
  9J-5152 J [1] SEAL  
  2J-8169 J [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 J [1] SEAL  
  4J-9220 J [1] RING  
  L   NOT PART OF 9J8201 PUMP ASSEM.
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0274S0136
 

9J-8201: PUMP GP-VANE

9J8201 VANE PUMP GROUP--Type 2
3G1270 and 3G2720 Cartridge parts are shown on 93D
Provides Field Replacement for 6J9893 Pump Assembly shown on Page 93
c168329 UEG0274S
9J8201 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-4670 [1] COVER  
  3G-2720 RYC [1] CARTRIDGE GROUP (11gpm)  
    (Separate Illustration)
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  1D-4597 [4] BOLT  
  3G-1270 YC [1] CARTRIDGE GROUP (38 gpm)  
    (Separate Illustration)
  4M-5285 [1] RING  
  2J-8169 [1] SEAL  
  9J-5152 [1] SEAL  
  9J-5091 [1] SHAFT  
  2J-8168 [1] WASHER  
  2L-5271 [1] BEARING  
  3G-2632 C [1] PLUG  
  2J-8172 [1] RING  
  9J-5123 [1] BODY  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#UEG0274S0137
 

3G-1270: CARTRIDGE GP

3G1270 CARTRIDGE GROUP--144 L/M (38 GPM)--Counterclockwise
Part of 9J8201 Vane Pump Group shown on Page 93B
FIELD INSTALLATION
c162653 UEG0274S
3G1270 CARTRIDGE GP Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-1264 [4] RETAINER  
2. 3G-1265 [4] SEAL  
3. 2J-8163 [1] SEAL  
4. 3G-1820 [1] SEAL  
5. 4J-9225 [1] RING  
6. 1H-5728 [1] SEAL  
 

#UEG0274S0138
 

3G-2720: CARTRIDGE GP

3G2720 CARTRIDGE GROUP--42 L/M (11GPM)--Counterclockwise
Part of 9J8201 Vane Pump Group shown on Page 193B
FIELD INSTALLATION
c165712 UEG0274S
3G2720 CARTRIDGE GP Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-2714 [4] RETAINER  
2. 3G-2715 [4] SEAL  
3. 2H-3931 [1] SEAL  
4. 3G-2716 [1] SEAL  
5. 4J-9222 [1] RING  
6. 4F-7952 [1] SEAL  
 

#UEG0274S0139
 

7J-0612: HYDRAULIC PUMP ASSEMBLY

7J612 HYDRAULIC PUMP ASSEMBLY--Type 1
Part of 9S8283, 9S8284, 9S8285, 9S8286, 8S8664 & 8S8665 Arrangements listed on Pages 11 & 12
c108893 UEG0274S
7J0612 HYDRAULIC PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  J [2] SCREW  
  J [1] RING  
  2H-3931 O [1] SEAL  
  1S-0668 O [1] RING  
  1H-7339 O [1] SEAL  
  4J-1657 [1] COVER  
  0T-0319 [4] BOLT  
  4J-3548 [1] WASHER  
  4J-9222 O [1] RING  
  4F-7952 O [1] SEAL  
  J [1] PLATE  
  1D-4597 [4] BOLT  
  J [1] ROTOR  
  J [10] VANE  
  J [10] INSERT  
  H [2] SCREW  
  H [1] PLATE ASSEM.  
  J [2] PIN  
  J [1] PLATE  
  1B-4206 L [2] NUT  
  3B-4510 L [2] LOCKWASHER  
  4J-4670 [1] COVER  
  H [1] ROTOR  
  2J-8163 O [1] SEAL  
  H [2] PIN  
  2H-3928 O [1] SEAL  
  2J-8165 [1] BODY  
  5F-3106 L [1] SEAL  
  H [1] PLATE  
  4J-9225 O [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8170 O [1] WIPER  
  4J-6353 [1] SHAFT  
  4J-9285 L [1] KIT (SEAL)  
    (CONSISTS OF PARTS MARKED O)
  7J-0573 [1] CARTRIDGE ASSEM.  
    (38 U.S. GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED H)
  7J-0581 [1] CARTRIDGE ASSEM.  
    (14 U.S. GALLONS PER MINUTE)
    (CONSISTS OF PARTS MARKED J)
  2J-8169 O [1] SEAL  
  4M-5285 [1] RING  
  2J-8172 [1] RING  
  1H-5728 O [1] SEAL  
  4J-9220 O [1] RING  
  H [1] RING  
  H [10] VANE  
  H [10] INSERT  
  L   NOT PART OF 7J612 PUMP ASSEM.
 

Information:

Service Magazine
Correct Use Of Plugs In Drain Holes Of Hydraulic Pumps That Have Two Seals On The Shaft-Use A Plug In Drain Hole Except With Water Glycol Systems{5055,5073}
1977/02/14

Caterpillar Parts SIS Catalog 173B :

HYDRAULIC PUMP ASSEMBLY
7J-0614 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
3J-8502 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
3J-8502 HYDRAULIC PUMP ASSEMBLY
CONTROL VALVE GROUP
7J-4152 CONTROL VALVE GROUP
CONTROL VALVE GROUP
5J-5176 CONTROL VALVE GROUP
CONTROL VALVE GROUP
7J-2026 CONTROL VALVE GROUP
CONTROL VALVE GROUP
7J-2026 CONTROL VALVE GROUP
CONTROL VALVE GROUP
6J-4734 CONTROL VALVE GROUP
HYDRAULIC PUMP ASSEMBLY
4J-6378 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
4J-6378 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
6J-9893 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
6J-9893 HYDRAULIC PUMP ASSEMBLY
PUMP GP-VANE
9J-8201 PUMP GP-VANE
PUMP GP-VANE
9J-8201 PUMP GP-VANE
CARTRIDGE GP
3G-1270 CARTRIDGE GP
CARTRIDGE GP
3G-2720 CARTRIDGE GP

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