Caterpillar cat d300 e articulated truck (prefix 7fn) service repair manual (7fn00001 and up)

Service Repair Manual
Models
D300E Articulated Truck

Start By:
a. separate tractor and trailer
FLUID SPILLAGE CONTAINMENT
Care must be taken to ensure that fluids are contained during performance of inspection,
maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with
suitable containers before opening any compartment or disassembling any component containing
fluids. Refer to "Tools And Shop Product Guide, NENG2500", for Tools and supplies suitable to
collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations
and mandates.
At operating temperature, the hydraulic oil tank is hot and under
pressure. Hot oil can cause burns. Remove the breather filter cap only
when the engine is stopped and the breather filter cap is cool enough to
touch. Slowly loosen the breather filter cap to release any pressure in
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the hydraulic tank. Be cautious of hot hydraulic oil when any lines are
disconnected in the hydraulic system.
NOTE: Put identification on all lines, hoses, wires and tubes for installation purposes. Cap and
plug all lines, hoses and tubes to prevent foreign material from entering the system.
NOTE: Drain all fluids in a suitable container for storage or disposal.
1. Use Tooling (D) to remove pin (1) from steering cylinder (2) at its pivot point (3) on hitch (4).
2. Repeat step number 1 for the opposite side of the hitch.
3. Remove bolt and retainer (5) from hitch (4).
4. Remove bolt and retainer (6) from lower hitch pin (7).
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5. Install Tool (A) and attach lifting straps (8) and safety chains (9) as shown and attach to a
suitable lifting device.
6. Remove bolt and retainer (10) from upper pivot pin (11) of hitch (4).
7. Loosen lock nuts (12) and remove thrust ring adjusting bolts (13).
8. Use Tooling (C) to remove the lower hitch pin (7).
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9. Use Tooling (C) to remove the upper hitch pin (11).
10. Remove hitch from the tractor. The weight of the hitch is 391 kg (860 lb).
11. Use Tooling (B) to remove upper and lower spherical bearing (14), if necessary.
NOTE: The following steps are for the installation of the oscillating hitch.
12. Using vacuum type grease position "V" seal with spacer (15) in lower hitch bearing cavity
(16).
13. Position upper thrust ring (17) on upper pivot point hitch (18).
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14. Position thrust ring (19) on top of thrust ring (17).
15. Using high vacuum grease position thrust ring (22) in bottom bearing cavity (21) of upper
pivot hitch pin (20).
16. Using tow people, move hitch in position on the tractor using car not to disrupt "V" ring (15)
and upper thrust ring (17).
17. Install tapered pin (7) in lower pivot bearing (14) of hitch and mating with frame of tractor.
18. Install tapered pin (11) in upper bearing hitch pivot point (23).
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19. While impacting the tapered pin (11) with Tool (E), install bolt with retainer (10) and tighten
to a torque of 360 N·m (270 lb ft).
NOTE: Continue to impact and tighten until impact no longer relaxes torque. Recheck after road
test.
20. While impacting tapered pin (7) with Tool (E) install bolt with retainer (6) and tighten to a
torque of 360 N·m (270 lb ft).
NOTE: Continue to impact and tighten until impact no longer relaxes torque. Recheck after road
test.
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21. Apply 9S-3263 Loctite to the threads and install bolt and retainer (5) under tractor hitch at
tapered pin (7).
22. Using Tooling (D) install pin (1) from steering cylinder (2) at its pivot point (3) on hitch (4).
End By:
a. connect tractor to trailer
NOTE: Reference SEBU6903, April 1995 for final adjustment.
NOTE: Refer to the Operation & Maintenance Manual for all fluid capacities and the proper
filling procedures.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sat Feb 15 12:12:31 UTC+0800 2020
8/8
2020/2/15

Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: D300E ARTICULATED TRUCK 7FN
Configuration: D300E Articulated Truck 7FN00001-UP (MACHINE) POWERED BY 3306 Engine
Disassembly and Assembly
26SI Series Alternator
Media Number -RENR1252-01 Publication Date -01/10/1999 Date Updated -09/10/2001
i01167081
Alternator - Disassemble
SMCS - 1405-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-7070 Digital Multimeter 1
B Variable Power Supply 1
Start By:
A. Remove the alternator. Refer to Disassembly and Assembly, "Alternator - Remove" for the
machine that is being serviced.
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the
component should be thoroughly cleaned. This will help to prevent dirt from entering the internal
mechanism.
1. Remove the pulley nut, the washer, the pulley, and the fan.
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Illustration 1 g00627790
2. Remove 4 screws (1). Remove plate (2) .
3. Remove 7 screws (3). Remove cover (4) .
4. Remove gasket (5) .
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5. Remove 2 insulated screws (6). Remove the 3 leads.
Note: The regulator and the mounting plate are coated with dielectric grease. If the grease is
removed, reapply the grease.
6. Remove nut (7) .
7. Remove grounded mounting screw (8) .
8. Remove regulator (9) .
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9. Remove mounting plate (10). The mounting plate may be stuck to the regulator.
Note: The 3 output diodes (11) are located in heat sink (12). These diodes are identical in
polarity. Diode (11) has red insulation on the wire. The 3 ground diodes (13) are located in
housing (14). These diodes are identical in polarity. Diode (13) has black insulation on the
wire.
10. Remove 3 nuts (15). Disconnect 3 stator phase leads. Disconnect 3 phase leads. Disconnect
6 diode leads.
Table 2
Alternator
Ground
Current Flow of the Output
Diodes
Current Flow of the Ground
Diodes
Negative
Lead to the Heat Sink Housing to the Lead
Red Wire Black Wire
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11. Remove the screw and insulator (16). Disconnect capacitor lead (17) .
12. Remove the 3 screws and insulators (18). Disconnect wire (19) .
13. If the "R" terminal is used, remove the following components: nut (20), lead (21), the
washer and terminal (21) .
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14. Remove screw (23) and remove diode trio (24) .
15. Remove the nut and washer (25). Remove insulator (26). Remove alternator output terminal
(27) .
16. Remove separator (28) .
Note: Many of the alternator's internal components are covered with dielectric grease. If the
grease is removed, reapply the grease.
17. Remove the heat sink and diode assembly (12) from housing (14). Insulator (29) may be
stuck to heat sink (12) .
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Note: Do not damage exposed stator windings or field windings. Bumping the windings or
scraping the windings may break the insulation. Broken insulation may create a short circuit
or a ground.
18. Remove 4 bolts (30). Carefully separate housing (31) from housing (14) .
19. Pull apart stator (32) and housing (14). Guide the stator leads and the grommet through the
hole as the stator is removed from housing (14) .
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20. Remove 3 screws (33). Remove the coil and support (34) from housing (14). Guide the field
leads and the grommet through the hole as the coil is removed from housing (14) .
21. Position a small screwdriver in slot (35). Pry cap (36) from housing (14) .
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Note: Do not strike the bearing. Shocks from striking the housing can cause damage.
22. Wipe the excess grease from the bearing well. Press bearing (37) into the housing. Remove
the inner race.
23. Remove 4 screws (38) from housing (31) .
24. Lift rotor (39) and bearing (40) from housing (31) .
25. Pull bearing (40) from rotor (39) .
26. Pull retainer (41) from rotor (39) .
27. Pull collar (42) from rotor (39) .
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Note: Do not strike the bushing. Shocks from striking the housing can cause damage.
28. Press bushing (43) from housing (14) .
Note: Do not strike the diodes. The shock of such an impact can damage the diodes. Use
proper tools in order to press or pull the diodes from the mountings. As much as 890 N (200
lb) of force may be needed to remove a diode.
29. Remove 3 diodes (13) from housing (14) .
30. Remove diode (11) from heat sink (12) .
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sat Feb 15 01:20:22 UTC+0800 2020
10/10
D300E Articulated Truck 7FN00001-UP (MACHINE) POWERED BY 3306 Engin...
2020/2/15

Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: D300E ARTICULATED TRUCK 7FN
Configuration: D300E Articulated Truck 7FN00001-UP (MACHINE) POWERED BY 3306 Engine
Disassembly and Assembly
26SI Series Alternator
Media Number -RENR1252-01 Publication Date -01/10/1999 Date Updated -09/10/2001
i01167078
Alternator - Assemble
SMCS - 1405-016
Assembly Procedure
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts.
Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are
worn or damaged, use new parts for replacement.
Note: Do not strike the diodes. The shock of such an impact can damage the diodes. Use
proper tools in order to press the diodes in the mountings.
1. Install 3 diodes (11) in heat sink (12) .
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Note: Do not strike the bushing. Shocks from striking the housing can cause damage.
2. Press bushing (43) in housing (14) .
3. Install 3 diodes (13) in housing (14) .
4. Press collar (42) on rotor (39) .
5. Slide retainer (41) on rotor (39) .
6. Press bearing (40) on rotor (39) .
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Caterpillar cat d300 e articulated truck (prefix 7fn) service repair manual (7fn00001 and up)

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