Bucket Attachment, Removal And Reversal; Detaching The Bucket; Attaching The Bucket - Doosan DX140R Shop Manual

BUCKET ATTACHMENT,
REMOVAL AND REVERSAL

Detaching the Bucket

Park the excavator away from obstructions on clear, flat, level
ground. Lower the bucket carefully to preassembled blocking on
the ground. Brace the bucket so that there is no load weight on
the pin connecting the bucket and arm. Disassemble the
fasteners on the end of the bucket pin and pull out the pin.
If the pin sticks and resists normal withdrawal, there may be a
load on it. Raise and lower the arm slightly until an unstressed
pin position is located.
CAUTION
Use care pulling out the pin to avoid damaging the dust
seals on either end of the arm.
When the pin has been withdrawn, move the operating joystick
slightly to take weight off the remaining link pin. Disassemble the
link pin end retainers and pull out the pin.
Lift the arm away from the bucket so that the bucket can be
carried away or another end attachment can be put on the
excavator.

Attaching the Bucket

Carefully inspect all parts before reassembling the bucket
linkage. Look for cracks or any other evidence of physical
damage and replace any seal or O-ring that is not in like-new
condition. Prelube linkage pins before reassembly.
Use an old cylinder rod, a long breaker bar or a similar, relatively
thin diameter support bar for making the first (temporary) pin
connection, between the bucket and arm. If the support bar is
straight, the arm can be raised and the bucket will hang level,
allowing direct insertion of the bucket ear-attachment linkage
FG000606
Figure 7
pin.
SP000939 Bucket
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