Bradco 509 Betreibershandbuch PDF herunterladen (Seite 26)

OPERATING INSTRUCTIONS

3994 1-25-06-4

OPERATING TECHNIQUES

ATTACHMENT TYPE BACKHOES

MISCELLANEOUS - BACKFILLING

To backll an excavation, lower the extended bucket into the spoil pile. Curl the bucket

and lift it clear of the spoil pile. Swing the bucket to the excavation and extend the bucket. Re-

turn the bucket to the spoil pile and continue the cycle until the job is completed.

IMPORTANT: Do not backll by using the swing circuit and dragging the bucket side-

ways. Doing so could cause damage to the dipper, boom, and swing cylinders or main-

frame.

IMPORTANT: Avoid constant jarring or hammering contact between the spoil pile and

the loaded bucket as this may cause premature wear to the backhoe pins and bushings.

MISCELLANEOUS - EXCAVATING BY A WALL

To excavate by a wall, where the wall will interfere with the stabilizer placement, move

the backhoe in at an angle to the wall. Concentrate on getting the swing pin as close to the

wall as possible while leaving enough swing arc left to dump the spoil.

MISCELLANEOUS - HARD GROUND OPERATION

When digging in hard ground, it may be necessary to decrease the bucket angle of entry

to the point where the back of the bucket almost contacts the ground. It may also be neces-

sary to apply downward pressure with the boom on the bucket.

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Bradco 509 Betreibershandbuch Seite 26