Service Repair Manual
Models
740 GC ARTICULATED TRUCK
740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
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Disassembly and Assembly 740 GC, 740 Ejector, 745 Articulated Truck Machine System Media Number -M0082510-04
Publication Date -01/09/2015
Date Updated -23/08/2018
i06247808
Gear Pump (Hydraulic Fan) - Remove and Install SMCS - 1387-010-GT; 5073-010-HFN
Removal Procedure Start By: a. Remove the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump Remove and Install".
Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
NOTICE 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.
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on CatÂŽ products. Dispose of all fluids according to local regulations and mandates.
Illustration 1
g00798601
1. Remove coupling (1) from gear pump (2).
Illustration 2
g00798713
2. Disconnect two hoses (3) from gear pump (2) and lay the hoses aside.
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 3
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g00798723
3. Remove two bolts (4) and the washers in order to remove gear pump (2) from the machine.
Illustration 4
g00798729
4. Remove O-ring seal (5) from gear pump (2).
Installation Procedure 1. Install gear pump (2) in the reverse order of removal. Copyright 1993 - 2020 Caterpillar Inc.
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Shutdown SIS Previous Screen Product: ARTICULATED TRUCK Model: 740 GC ARTICULATED TRUCK 3T8 Configuration: 740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly 740 GC, 740 Ejector, 745 Articulated Truck Machine System Media Number -M0082510-04
Publication Date -01/09/2015
Date Updated -23/08/2018
i06247935
Gear Pump (Hydraulic Fan) - Disassemble SMCS - 1387-015-GT; 5073-015-HFN
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-1857
Retaining Ring Pliers
1
Start By: a. Remove the gear pump (Hydraulic Fan). Refer to Disassembly and Assembly, "Gear Pump (Hydraulic Fan) - Remove and Install".
Illustration 1
g00802101
1. Remove O-ring seal (1) and two elbows (2) from gear pump (3).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 2
g00802102
2. Place the gear pump on suitable cribbing and remove adapter (4). Remove four bolts (5) in order to remove plate (6) from housing (7).
Illustration 3
g00802103
3. Remove two dowels (8), seal (9) and pressure plate (10) from housing (7).
Illustration 4
g00802136
4. Remove seal (11) and backup seal (12) from pressure plate (10).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 5
g00802349
5. Remove gear shaft (13) and idler gear (14) from housing (7).
Illustration 6
g00802350
6. Remove pressure plate (15) from housing (7). Refer to step 4 in order to remove the seals.
Illustration 7
g00802352
7. Remove housing (7) from flange (16).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 8
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g00802357
8. Remove seal (17) from housing (7).
Illustration 9
g00802370
Illustration 10
g00802387
9. Use a suitable pin punch in order to remove lip seal (19) from flange (16). Use tool (A) and remove two rings (20). Use the pin punch to remove lip seal (21). Copyright 1993 - 2020 Caterpillar Inc.
Tue Jan 14 22:50:20 UTC+0800 2020
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Shutdown SIS Previous Screen Product: ARTICULATED TRUCK Model: 740 GC ARTICULATED TRUCK 3T8 Configuration: 740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly 740 GC, 740 Ejector, 745 Articulated Truck Machine System Media Number -M0082510-04
Publication Date -01/09/2015
Date Updated -23/08/2018
i06248004
Gear Pump (Hydraulic Fan) - Assemble SMCS - 1387-016-GT; 5073-016-HFN
Assembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-1857
Retaining Ring Pliers
1
B
1P-0510
Driver Gp
1
1. On assembly, lubricate all internal components with the lubricant that is being sealed.
Illustration 1
g00802426
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 2
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g00802435
2. Use tool (B) to install lip seal (21) with the lip of the seal toward flange (16). Use tool (A) to install two retaining rings (20) into the ring grooves in flange (16). Use tool (B) to install lip seal (19) with the lip of the seal away from flange (16).
Illustration 3
g00802465
3. Install two dowels (18) into flange (16).
Illustration 4
g00802357
4. Install seal (17) into housing (7).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 5
g00802352
5. Align housing (7) with the dowel in flange (16) and position the housing on the flange.
Illustration 6
g00802350
6. Install pressure plate (15) into housing (7). Refer to step 8 for the installation of the seals.
Illustration 7
g00802349
7. Install idler gear (14) and gear shaft (13) into housing (7).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 8
g00802136
8. Install seal (11) and backup seal (12) into pressure plate (10).
Illustration 9
g00802103
9. Carefully install pressure plate (10) onto housing (7). Install seal (9) and two dowels (8).
Illustration 10
g00802102
10. Align plate (6) with the two dowels in housing (7) and install four bolts (5). Tighten the bolts to a torque of 44.5 ± 3.5 N·m (33 ± 2.5 lb ft). Install adapter (4).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 11
5/5
g00802101
11. Install two elbows (2) and O-ring seal (1) to gear pump (3). End By: a. Install the gear pump (Hydraulic Fan). Refer to Disassembly and Assembly, "Gear Pump (Hydraulic Fan)- Install". Copyright 1993 - 2020 Caterpillar Inc.
Tue Jan 14 22:51:15 UTC+0800 2020
All Rights Reserved. Private Network For SIS Licensees.
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
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Shutdown SIS Previous Screen Product: ARTICULATED TRUCK Model: 740 GC ARTICULATED TRUCK 3T8 Configuration: 740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly 740 GC, 740 Ejector, 745 Articulated Truck Machine System Media Number -M0082510-04
Publication Date -01/09/2015
Date Updated -23/08/2018
i06282891
Piston Pump (Brake, Fan, Hoist) - Disassemble SMCS - 5070-015
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-0510
Driver Group
1
B
8H-0663
Bearing Puller Gp
1
Start By: a. Remove the piston pump.
Illustration 1
g01305005
1. Remove bolts (1) and valve (2).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 2
g01305006
2. Remove gasket (3).
Illustration 3
g01305007
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.
3. Remove adjustment screw (4), housing (5), O-ring seal (6), spring (7), spring (8), and retainer (9).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 4
3/10
g01305010
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.
4. Remove adjustment screw (10), nut (11), housing (12), O-ring seal (13), spring (14), spring (15), retainer (17), and screw (16).
Illustration 5
g01305011
5. Remove spool (18) and spool (19).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 6
g01305012
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.
6. Remove bolts (20) and pump head (21).
Illustration 7
g01305013
7. Remove O-ring seals (22), port plate (23), and bearing cup (24).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 8
g01305014
8. Remove O-ring seal (25), spring (26), and piston (27).
Illustration 9
g01305015
9. Remove piston (28) and bearing cone (29).
Illustration 10
g01305016
10. Remove shim (30).
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740 Articulated Truck 3T800001-UP (MACHINE) POWERED BY C15 Engine(M008...
Illustration 11
6/10
g01305018
11. Turn the pump housing over 180 degrees and hold the components in the pump housing. Remove pump housing (31) from bearing cone (32), swashplate (33), and rotating group (34).
Illustration 12
g01305019
12. Remove shaft (35) and bearing cone (32) from swashplate (33) and rotating group (34).
Illustration 13
g01305020
13. Use Tooling (A) and a suitable press in order to remove shaft (35) from bearing cone (32).
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