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 pivo