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621B TRACTOR 45P00001-02711 (MACHINE) STEERING SYSTEM Caterpillar SIS



WHEEL TRACTOR 621B WHEEL TRACTOR 45P
 621B TRACTOR 45P00001-02711 (MACHINE) UEG0807S 621B 45P   (1973)

Parts group 621B:

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STEERING SYSTEM
LINES GP
LINES GP-STEERING
8J-7730 LINES GP-STEERING
8J7730 STEERING LINES GROUP
Serial No. 45P1 to 1133 and 45P1136 inclusive
LINES GP-STEERING
8J-7730 LINES GP-STEERING
8J7730 STEERING LINES GROUP
Serial No. 45P1134, 1135, 1137 to 1306, 1308 to 1311, 1316 to 1318, 1321 to 1324, 1326 & 45P1333 inclusive
LINES GP-STEERING
8J-7730 LINES GP-STEERING
8J7730 STEERING LINES GROUP
Serial No. 45P1307, 1312 to 1315, 1319, 1320, 1325, 1327 to 1332 and 45P1334-Up
LINES GP-STEERING
8D-8030 LINES GP-STEERING
STEERING LINES (8D8030 N/S)--Part 1 of 3
Serial No. 45P1 to 45P869 inclusive
9J1780 Valve parts are shown on Page 101
LINES GP-STEERING
8D-8030 LINES GP-STEERING
STEERING LINES (8D8030 N/S)--Part 2 of 3
Serial No. 45P1 to 45P869 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
STEERING LINES (8D8030 N/S)--Part 3 of 3
Serial No. 45P1 to 45P869 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P870 to 45P1450 inclusive
9J1780 Valve parts are shown on Page 101
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P870 to 45P1450 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P870 to 45P1450 inclusive
3G7594 Pressure Reducing Valve parts are shown on Page 100D
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P1451 to 45P1522 inclusive
9J1780 Valve parts are shown on Page 101
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P1451 to 45P1522 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P1451 to 45P1522 inclusive
3G7594 Pressure Reducing Valve parts are shown on Page 100D
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P1523 to 45P1741 inclusive
1U325 Valve parts are shown on Page 100K
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P1523 to 45P1741 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P1523 to 45P1741 inclusive
3G7594 Valve parts are shown on Page 100D
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P1742 to 45P2073 inclusive
1U325 Valve parts are shown on Page 100K
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P1742 to 45P2073 inclusive
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P1742 to 45P2073 inclusive
3G7594 Valve parts are shown on Page 100D
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P2074-Up
1U325 Valve parts are shown on Page 100K
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P2074-Up
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 1 of 3
Serial No. 45P2346-Up
1U325 Valve parts are shown on Page 100K
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 2 of 3
Serial No. 45P2346-Up
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P2346-Up
3G7594 Valve parts are shown on Page 100D
LINES GP-STEERING
8D-8030 LINES GP-STEERING
8D8030 STEERING LINES GROUP--Part 3 of 3
Serial No. 45P2074-Up
3G7594 Valve parts are shown on Page 100D
PRESSURE REDUCING VALVE ASSEMBLY
9J-5503 PRESSURE REDUCING VALVE ASSEMBLY
9J5503 PRESSURE REDUCING VALVE ASSEMBLY
Serial No. 45P1 to 45P869 inclusive
Part of 2G1100 Steering Follow-Up Group shown on Page 93B
VALVE GP
3G-7594 VALVE GP
3G7594 PRESSURE REDUCING VALVE ASSEMBLY
Serial No. 45P870-Up
Part of 8D8030 Steering Lines Group shown on Pages 100C, 100C-3,
100C-6 and 100C-10
LINES GP-SUPPLEMENTAL STEERING
2G-5965 LINES GP-SUPPLEMENTAL STEERING
2G5965 STEERING LINES GROUP--Type 1
Serial No. 45P1523-Up. Part of 2G5996 Supplemental Steering Arrangement listed on Page 100F
LINES GP-SUPPLEMENTAL STEERING
2G-5965 LINES GP-SUPPLEMENTAL STEERING
2G5965 STEERING LINES GROUP--Type 2
Serial No. 45P1523-Up
Part of 2G5996 Supplemental Steering Arrangement listed on Page 100F
LINES GP-SUPPLEMENTAL STEERING
2G-5965 LINES GP-SUPPLEMENTAL STEERING
2G5965 STEERING LINES GROUP--Type 3
Serial No. 45P1523-Up
Part of 2G5996 Supplemental Steering Arrangement listed on Page 100F
STEERING GP
2G-5996 STEERING AR-SUPPLEMENTAL
2G5996 SUPPLEMENTAL STEERING ARRANGEMENT
Serial No. 45P1523-Up. AN ATTACHMENT
VALVE GP
VALVE AS-DOUBLE CHECK
5D-3056 VALVE AS-DOUBLE CHECK
5D3056 DOUBLE CHECK VALVE ASSEMBLY
Serial No. 45P1 to 45P1192 inclusive
Part of 8D8000 Air and Brake Control Group shown on Pages 84 and 85C
VALVE AS-CHECK
2R-0618 VALVE AS-CHECK
2R618 DOUBLE CHECK VALVE ASSEMBLY
Part of 8D8000 Air and Brake Control Group shown on Pages 83, 84, 85B, 85C,
85F, 85G, 85K, 85L, 85P, 85T & 85X
VALVE GP-STEERING
1U-0325 VALVE GP-STEERING
1U325 STEERING VALVE GROUP
Serial No. 45P1523-Up
Part of 8D8030 Steering Lines Group shown on Pages 100C-4, 100C-8 & 100C-11
1U324 Valve parts are shown on Page 104A
STEERING VALVE GROUP
9J-1780 STEERING VALVE GROUP
9J1780 STEERING VALVE GROUP
Serial No. 45P1 to 45P1522 inclusive
Part of 8D8030 Steering Lines Group shown on Pages 98, 100A and 100C-1
8J1929 Valve parts are shown on Page 104
BASIC VALVE GROUP
8J-1929 BASIC VALVE GROUP
8J1929 BASIC VALVE GROUP
Serial No. 45P1 to 45P1522 inclusive
Part of 9J1780 Steering Valve Group shown on Page 101
VALVE GP
1U-0324 VALVE GP
1U324 BASIC VALVE GROUP
Serial No. 45P1523-Up
Part of 1U325 Steering Valve Group shown on Page 100K
CYLINDER GP
CYLINDER & MOUNTING GP
8D-6900 CYLINDER & MOUNTING GP
8D6900 STEERING SERVO-RECEIVER MOUNTING & CYLINDER GROUP
Serial No. 45P1 to 45P1059 inclusive
9J8774 Cylinder parts are shown on Page 94
CYLINDER & MOUNTING GP
8D-6900 CYLINDER & MOUNTING GP
8D6900 STEERING SERVO-RECEIVER MOUNTING AND CYLINDER GROUP
Serial No. 45P1060-Up
9J8774 Cylinder parts are shown on Page 94
2G-1100 STEERING FOLLOW-UP SUPPLY GROUP
2G1100 STEERING FOLLOW-UP SUPPLY GROUP--Field Installation
Serial No. 45P1 to 45P869 inclusive
CYLINDER GP STEERING SERVO
9J-8774 CYLINDER GP STEERING SERVO
9J8774 STEERING CYLINDER GROUP (Change 0)--2" Bore X 5" Stroke
Part of 8D6900 Steering Servo-Receiver Mounting and Cylinder Group shown on Pages 93 and 93B
STEERING CYLINDER GROUP
8J-7376 STEERING CYLINDER GROUP
8J7376 STEERING CYLINDER GROUP--(Change 0-1)--127 mm (5") Bore x 1130 mm (44.40") Stroke--2 Required
Serial No. 45P1 to 45P2070, 2072 to 2112, 2114, 2116 to 2120, 2123, 2125 to 2133,
2135, 2137, 2139, 2140, 2142 & 45P2143 inclusive
CYLINDER GP-STEERING
3G-5192 CYLINDER GP-STEERING
3G5192 STEERING CYLINDER GROUP--(Change 0 & 1)--127 mm (5") Bore x 1130 mm (44.40") Stroke--2 Required
Serial No. 45P2071, 2113, 2115, 2121, 2122, 2124, 2134, 2136, 2138, 2141 & 45P2144-Up
STEERING SERVO-MASTER CYLINDER GROUP
5J-8606 STEERING SERVO-MASTER CYLINDER GROUP
5J8606 STEERING SERVO-MASTER CYLINDER GROUP (Change 0-5) 38 mm (1.50") Bore x 240 mm (9.40") Stroke
Serial No. 45P1 to 45P2112 inclusive
CYLINDER GP-STEER
3G-6904 CYLINDER GP-STEER
3G6904 STEERING CYLINDER GROUP--(Change 0-2)--38 mm (1.50") Bore x 240 mm (9.40") Stroke
Serial No. 45P2113-Up. 3G6473 Valve parts are shown on Page 100F
STEERING GEAR GP
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P1 to 45P927 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P1 to 45P927 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P928 to 45P1085 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P928 to 45P1085 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P1086 to 45P1981 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P1086 to 45P1981 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P1982 to 45P2420 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P1982 to 45P2420 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P2421 to 45P2609 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P2421 to 45P2609 inclusive
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 1 of 2
Serial No. 45P2610-Up
STEERING GEAR GP
8D-6901 STEERING GEAR GP
8D6901 STEERING GEAR GROUP--Part 2 of 2
Serial No. 45P2610-Up
PUMP GP
PUMP GP-STEERING VALVE
2G-5925 PUMP GP-STEERING VALVE
2G5925 STEERING VANE PUMP GROUP
Serial No. 45P1523-Up. Part of 2G5996 Supplemental Steering Arrangement listed
on Page 100F. 3G1239 Pump parts are shown on Pages 100H and 100H-1
AN ATTACHMENT
PLATE
3G-2139 PLATE
3G2139 BASIC VANE PUMP GROUP--Type 1
Serial No. 45P1523-Up
Part of 2G5925 Steering Vane Pump Group shown on Page 100G
AN ATTACHMENT
PUMP GP-VANE
3G-1239 PUMP GP-VANE
3G1239 BASIC VANE PUMP GROUP--Type 2
Serial No. 45P1523-Up. Part of 2G5925 Steering Vane Pump Group shown on Page 100G
3G2834 and 3G2233 Cartridge parts are shown on Pages 100H-2 and 127D. AN ATTACHMENT
PUMP GP-VANE
3G-1239 PUMP GP-VANE
3G1239 BASIC VANE PUMP GROUP--Type 3
Serial No. 45P1523-Up. Part of 2G5925 Steering Vane Pump Group shown on Page 100G
3G2834 & 3G7656 Cartridge parts are shown on Page 100H-2. AN ATTACHMENT
CARTRIDGE GP
3G-2834 CARTRIDGE GP
3G2834 CARTRIDGE GROUP--25 GPM--Clockwise
Serial No. 45P1523-Up
Part of 3G1239 Basic Vane Pump Group shown on Page 100H-1
CARTRIDGE GP
3G-7656 CARTRIDGE GP
3G7656 CARTRIDGE GROUP--189 L/Min (50 GPM)
Serial No. 45P1523-Up. Part of 3G1239 Vane Pump Group shown on Page 100H-1b
AN ATTACHMENT
PUMP GP-SUPPLEMENTAL STEERING
2G-5955 PUMP GP-SUPPLEMENTAL STEERING
2G5955 STEERING PUMP GROUP
Serial No. 45P1523-Up
Part of 2G5996 Supplemental Steering Arrangement listed on Page 100F
3G1233 Gear Pump parts are shown below
PUMP GP-GEAR
3G-1233 PUMP GP-GEAR
3G1233 BASIC GEAR PUMP GROUP--Type 1
Serial No. 45P1523-Up
Part of 2G5955 Steering Pump Group
PUMP GP-GEAR
3G-1233 PUMP GP-GEAR
3G1233 BASIC GEAR PUMP GROUP--Type 2
Serial No. 45P1523-Up
Part of 2G5955 Steering Pump Group shown on Page 100J

Information:

(For parts list, see above)

Special Instruction
Accumulator Discharging and Charging Procedures {0738, 4263, 4264, 4331, 5077, 5077, 5081, 7474}
Accumulator Discharging and Charging Procedures {0738, 4263, 4264, 4331, 5077, 5077, 5081, 7474}
Decommissioning Procedure for Permanently Sealed Diaphragm Accumulators {5077}
Decommissioning Procedure for Permanently Sealed Diaphragm Accumulators {5077}
Tool Operating Manual
NEHS1214: 455-0126 Nitrogen Booster Pump Group {0374, 0599, 0647, 0756, 4263, 4331, 5077, 7200}
NEHS1214: 455-0126 Nitrogen Booster Pump Group {0374, 0599, 0647, 0756, 4263, 4331, 5077, 7200}
Service Magazine
New Cover, Seal And Flanges Added To The Hydraulic Filter And Tank Group{5056,4332,4304}
1985/04/22
Stronger Hose Used In Hydraulic Tank And Filter Group{5057}
1978/10/09
New Oil Filters for all Cat Machines are Available {3004, 3067, 4295, 431F, 5068}
New Oil Filters for all Cat Machines are Available {3004, 3067, 4295, 431F, 5068}
New Hydraulic Flow Switches Available {7332,7492}
1991/07/22
Special Instruction
Installation Of 6G9960 And 6G9962 Tube Assemblies And 6G9964 Hose Assembly{4304}
Installation Of 6G9960 And 6G9962 Tube Assemblies And 6G9964 Hose Assembly{4304}
Hose and Coupling Assembly and Repair Process Guide{0684, 3016, 3103, 3154, 4133, 4257, 4304, 5057, 7554}
Hose and Coupling Assembly and Repair Process Guide{0684, 3016, 3103, 3154, 4133, 4257, 4304, 5057, 7554}
O-Rings - Radial, Fitting Assembly O-Rings and Other O-Ring Applications {0599, 0738, 4000, 4250, 4300, 5050, 5057, 7555}
O-Rings - Radial, Fitting Assembly O-Rings and Other O-Ring Applications {0599, 0738, 4000, 4250, 4300, 5050, 5057, 7555}
Service Magazine
New Rod Ends Used On Steering Valve Control Rod{4304,4305,4307,4317}
1980/03/31
New Clamps And Spacers Used On Cushion Hitch To Prevent Restriction In Air Lines{5057,4257,4304}
1980/06/16
Hose Locations Changed To Prevent Contact With Hitch Components{4304,5057}
1982/02/22
New Cover, Seal And Flanges Added To The Hydraulic Filter And Tank Group{5056,4332,4304}
1985/04/22
Color Coded Dust Caps for S·O·S Ports Will Be Available {7770}
2003/12/01
Information Release Memo, PELJ0481 , "Product Line Expansion for Caterpillar Low and Medium Pressure Hose and Coupling Products" {5057}
2005/02/21
Special Instruction
Installation Of 2G4553 Thrust Plate{4201, 4209}
Installation Of 2G4553 Thrust Plate{4201, 4209}
Installation Of 7N4804 Retarder Oil Cooler Water Lines Replacement Group{1368, 3122}
Installation Of 7N4804 Retarder Oil Cooler Water Lines Replacement Group{1368, 3122}
Installation Of Supplemental Steering Pump Arrangements{4306}
Installation Of Supplemental Steering Pump Arrangements{4306}
Installation Of 6G9960 And 6G9962 Tube Assemblies And 6G9964 Hose Assembly{4304}
Installation Of 6G9960 And 6G9962 Tube Assemblies And 6G9964 Hose Assembly{4304}
Disassembly and Assembly
Steering Cylinders
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Cylinder (Servo-Sender)
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Cylinder (Servo-Receiver)
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Gears
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Control Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Pressure Protection Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Brake Control Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Emergency Pilot Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Double Check Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Parking And Emergency Brake Control Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Implement Hydraulic Pump
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Apron Air Control Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Hydraulic Tank
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Axle Housings (621B Scraper)
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Adjustment Of Brakes
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
Bracket And Hardware Added To Prevent Movement Of Accumulator Hose{5077,5057,7107}
1980/08/25
Inspection Procedure For Pin And Bushing Wear In Hitch Components And Steering Linkage{7109,7107,7106,4305,4303}
1980/09/29
Warning: Use Correct Seal On Seat Assembly For Valve Group In Steering Valve Group{4307,4312,4322}
1980/12/01
Troubleshooting The Steering System{4316,4308,4303}
1981/04/27
New Brake System Gives Spring-Activated Operation Of Parking/Emergency Brakes{4250}
1981/10/12
Clean Seat Assembly And Plug Assembly In Steering Valve Group When There Is A Steering System Failure{4307,4312,4322}
1982/02/15
Hose Locations Changed To Prevent Contact With Hitch Components{4304,5057}
1982/02/22
Release Of Brake With No Air Pressure In The System{4250,4261,4262,4267,4278}
1982/07/05
New Boot Used On Brake Actuator Group{4262}
1982/11/15
Service Repair Kit Available For Brake Relay Valve{4280}
1983/01/10
Fender Bracket Assemblies Changed To Permit Easier Removal And Installation Of Brake Actuators{7252,4262}
1983/08/08
Changes To Steering Valve Group Improve Relief Valve Operation{4322,4307}
1983/11/21
New Flow Switches Used On Machines With Supplemental Steering{4324}
1984/10/08
New Cover, Seal And Flanges Added To The Hydraulic Filter And Tank Group{5056,4332,4304}
1985/04/22
New Breaker Relief Valve Lowers Pressure And Prevents Vacuum In Hydraulic Tank{5056,5065}
1977/03/28
Air Dryer Available As Attachment{1065,4250}
1977/04/25
More Separate Components Of Brake Rotochamber Now Available For Parts Service{4262}
1977/08/08
Correct Alignment Of Yokes And Drive Shaft Will Prevent Excessive (Too Much) Runout{3253}
1978/09/25
New Brake Control Valve Group Used In Brake Control Group{4265}
1978/10/30
New Relief Valve And Master Cylinder Used In Steering Follow-Up System{4315,4322}
1978/10/30
New Steering Cylinders Have Bearings In The Cap End And Use Mounting Pins That Can Turn Freely{4303}
1978/11/20
Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/13
Hardened Nuts Now Used To Hold Brake Drum To Wheel{4252,4251}
1979/09/17
Improved Brake Control Valve Group{4262,4265}
1990/01/22
5T5224 Seal and Valve Kit Available For Repair Of 5T7242 And 8X5444 Brake Relay Valves {4280}
1990/11/12
Warning: Use Correct Seal On Seat Assembly For Valve Group In Steering Valve Group{4307,4312,4322}
1980/12/01
Clean Seat Assembly And Plug Assembly In Steering Valve Group When There Is A Steering System Failure{4307,4312,4322}
1982/02/15
New Metering Pump Groups For Steering Control Prevent Oil Leaks {4300, 4301, 4312}
2010/08/19
Special Instruction
Procedure to Apply Dielectric Grease to the Horn (Cruise Control) Contact Ring{4310}
Procedure to Apply Dielectric Grease to the Horn (Cruise Control) Contact Ring{4310}
Disassembly and Assembly
Steering Gears
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Special Instruction
Installation Of Supplemental Steering Pump Arrangements{4306}
Installation Of Supplemental Steering Pump Arrangements{4306}
Specifications
Supplemental Steering: Hydraulic Pump And Valve (Optional)<BR> (3G1233)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Reuse And Salvage Guidelines
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Service Magazine
Speed Adjustment Screw For Supplemental Steering Pump Changed {4324}
1981/11/02
New Flow Switches Used On Machines With Supplemental Steering{4324}
1984/10/08
Wiring Harness Conduit Component Sizes {1408}
1995/02/13
Special Instruction
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Hose Inspection Form {0374, 0599, 5057, 5057}
Hose Inspection Form {0374, 0599, 5057, 5057}
Tool Operating Manual
HVOF Identifier 396-9342 Group{0599, 0669, 0679, 7000}
HVOF Identifier 396-9342 Group{0599, 0669, 0679, 7000}
4-Inch Radial Hose Machine{0374, 0599, 0684, 0738, 5057}
4-Inch Radial Hose Machine{0374, 0599, 0684, 0738, 5057}
Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}
Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}
Installing 457-6030 (C3-290 Controller) on Hose Crimping Machines 233-8048, 286-4354, 286-4355, 275-6199, 286-4353, and 233-8038{0374, 0599, 0684, 0700, 0738, 5057}
Installing 457-6030 (C3-290 Controller) on Hose Crimping Machines 233-8048, 286-4354, 286-4355, 275-6199, 286-4353, and 233-8038{0374, 0599, 0684, 0700, 0738, 5057}
NEHS1214: 455-0126 Nitrogen Booster Pump Group {0374, 0599, 0647, 0756, 4263, 4331, 5077, 7200}
NEHS1214: 455-0126 Nitrogen Booster Pump Group {0374, 0599, 0647, 0756, 4263, 4331, 5077, 7200}
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Bench Test Procedures
Service Magazine
Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/13
243-3133 Quick Connect Coupler (Fluid Sampling) Provides A Coupler for Portable Particle Analyzers {0707, 0717, 0731, 0732, 0738}
2004/07/05
Test Kit Checks Oil Coolers for Leaks {0768, 0781, 0783, 0784}
2004/12/27
Specifications
Supplemental Steering: Hydraulic Pump And Valve (Optional)<BR> (3G1233)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Steering Control Valves<BR> (9J1780 &amp; 1U325)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Air Horn; Solenoid Valve<BR> (2G5694)
621B, 623B & 627B WHEEL TRACTOR-SCRAPERS AIR SYSTEM AND BRAK
Reuse And Salvage Guidelines
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Contamination Control Guidelines
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Disassembly and Assembly
Steering Control Valve
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
New Rod Ends Used On Steering Valve Control Rod{4304,4305,4307,4317}
1980/03/31
Warning: Use Correct Seal On Seat Assembly For Valve Group In Steering Valve Group{4307,4312,4322}
1980/12/01
Clean Seat Assembly And Plug Assembly In Steering Valve Group When There Is A Steering System Failure{4307,4312,4322}
1982/02/15
Service Repair Kit Available For Brake Relay Valve{4280}
1983/01/10
Changes To Steering Valve Group Improve Relief Valve Operation{4322,4307}
1983/11/21
New Relief Valve And Master Cylinder Used In Steering Follow-Up System{4315,4322}
1978/10/30
5T5224 Seal and Valve Kit Available For Repair Of 5T7242 And 8X5444 Brake Relay Valves {4280}
1990/11/12
243-3133 Quick Connect Coupler (Fluid Sampling) Provides A Coupler for Portable Particle Analyzers {0707, 0717, 0731, 0732, 0738}
2004/07/05
Special Instruction
Installation Of 2G4553 Thrust Plate{4201, 4209}
Installation Of 2G4553 Thrust Plate{4201, 4209}
Reuse And Salvage Guidelines
Thermal Spray Procedures for OHT and WTS Front Wheel - Bearing Bores {0679, 4006, 4201}
Thermal Spray Procedures for OHT and WTS Front Wheel - Bearing Bores {0679, 4006, 4201}
Special Instruction
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Specifications
Steering Cylinder<BR> (8J7376 &amp; 3G5192)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Follow-Up Cylinder; For Steering (Sender)<BR> (5J8606 &amp; 3G6904)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Follow-Up Cylinder; For Steering (Receiver)<BR> (5J7977 &amp; 9J8774)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Contamination Control Guidelines
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Disassembly and Assembly
Steering Cylinders
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Cylinder (Servo-Sender)
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Steering Cylinder (Servo-Receiver)
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
Inspection Procedure For Pin And Bushing Wear In Hitch Components And Steering Linkage{7109,7107,7106,4305,4303}
1980/09/29
Troubleshooting The Steering System{4316,4308,4303}
1981/04/27
Hardened Locknut For Piston In Steering Follow-Up Cylinder{4315}
1982/06/21
New Servo-Receiver Steering Cylinder Group Used {4316}
1984/06/25
Hardened Washers And Spacers Prevent Loose Connection At Follow-Up Cylinder Linkage{7107,4315}
1977/05/16
New Relief Valve And Master Cylinder Used In Steering Follow-Up System{4315,4322}
1978/10/30
New Steering Cylinders Have Bearings In The Cap End And Use Mounting Pins That Can Turn Freely{4303}
1978/11/20
New U-Cup Seal And Spacer(s) Replace Cylinder Rod Packing Seal {5101,5102,5103,5104,5213,5223,5229,5265}
1996/06/10
Correction to Service Magazine , "Inspection Procedure for Pin and Bushing Wear in Hitch Components and Steering Linkage for Wheel Tractor-Scrapers" {4305, 7106, 7107, 7108, 7109}
2000/05/15
New Assembly Instructions for Rod Seals on Hydraulic Cylinders are Available {7562}
2001/09/04
Correctly Assembling the Buffer Seal Will Prevent Failure of the U-Cup Seals {7562}
2001/07/30
Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30
Specifications
Steering Gear
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Disassembly and Assembly
Steering Gears
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
New Rod Ends Used On Steering Valve Control Rod{4304,4305,4307,4317}
1980/03/31
Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Service Magazine
Test Kit Checks Oil Coolers for Leaks {0768, 0781, 0783, 0784}
2004/12/27
Reuse And Salvage Guidelines
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Contamination Control Guidelines
Disassembly and Assembly
Hydraulic Tank
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
New Cover, Seal And Flanges Added To The Hydraulic Filter And Tank Group{5056,4332,4304}
1985/04/22
New Breaker Relief Valve Lowers Pressure And Prevents Vacuum In Hydraulic Tank{5056,5065}
1977/03/28
Stronger Hose Used In Hydraulic Tank And Filter Group{5057}
1978/10/09
Special Instruction
Installation Of Supplemental Steering Pump Arrangements{4306}
Installation Of Supplemental Steering Pump Arrangements{4306}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Nexus Gear Pump Porting{5073}
Nexus Gear Pump Porting{5073}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Vane Type Hydraulic Pump Identification Guidelines {5055}
Vane Type Hydraulic Pump Identification Guidelines {5055}
Specifications
Hydraulic Pump; For Implement (Bowl); And Steering (621B Std.)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Hydraulic Pump; For Elevator And Steering (623B Std.)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Hydraulic Pump For; Implement (Bowl) And Steering
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
Supplemental Steering: Hydraulic Pump And Valve (Optional)<BR> (3G1233)
621B, 623B & 627B WHEEL TRACTORS STEERING SYSTEM
9J5075, 8J6178 Hydraulic Pump<BR> (For 621B Tractor)
621B & 627B SCRAPERS HYDRAULIC SYSTEM
9J5135, 9J5649 Hydraulic Pump<BR> (For 627B Tractor)
621B & 627B SCRAPERS HYDRAULIC SYSTEM
Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Vane Type Hydraulic Pump Identification Guidelines {5055}
Vane Type Hydraulic Pump Identification Guidelines {5055}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Information Release Memo
CAT REMAN EXPANDS HYD GEAR &amp; PISTON PUMP &amp; MOTOR OPTIONS
CAT REMAN EXPANDS HYD GEAR & PISTON PUMP & MOTOR OPTIONS
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}
Disassembly and Assembly
Elevator And Implement Pump
621B & 623B TRACTORS POWER TRAIN
Elevator And Steering Pump
621B & 623B TRACTORS POWER TRAIN
Elevator And Steering Pump
621B & 623B TRACTORS POWER TRAIN
Implement Hydraulic Pump
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
Speed Adjustment Screw For Supplemental Steering Pump Changed {4324}
1981/11/02
New Flow Switches Used On Machines With Supplemental Steering{4324}
1984/10/08
New Cushion-Hitch Pump Available{5050,5073,5300,5316}
1985/03/18
New Oil Pump Gears Used {1304}
1986/07/07
New Shaft Seal Plug Improves Performance Of Vane Pump Group{5055}
1996/03/04

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QUINN COMPANY
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