Gradall 534B-9 Operation Manual - Manual (Page 26)

Install light material bucket on boom head.
Retract boom fully and tilt bucket up or down as
required to position bottom of bucket parallel with
ground.
Raise or lower boom to appropriate height for
loading material from stockpile.
Align handler with face of stockpile and drive
slowly and smoothly into pile to load bucket.
Tilt bucket up far enough to retain load and back
away from pile.
Lower bucket to carry position (approximately
one foot above ground) and travel carefully to
unloading point. Tilt bucket down to dump load.
Observe all precautions and load capacity
limits (listed previously) when handling
loads with light material bucket.
Light back-blading of loose material is
permissible but heavier grading operations
may damage the bucket and structural
members.
MAST (6' with 48" or 66" carriage)
PRECAUTIONS
Read additional capacity information
under Capacity heading.
Because the mast increases lift height, it
is especially important to level the
handler before lifting a load more than
four feet above ground level (refer to page
19).
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Capacity:
Maximum lift capacity for the mast is shown on serial
number plate (located on right cab wall). However,
maximum lift capacity applies only to certain areas
within boom extension/elevation pattern of handler/
mast combination. A separate capacity chart must be
used for handlers equipped with mast. Study this
chart carefully before attempting to handle a load
w i t h m a s t a t t a c h m e n t .
Controls:
The carriage tilt cylinder is used to tilt the mast and
the carriage tilt lever controls mast tilt.
If your unit is equipped with a multi-function
auxiliary control lever, refer to page 30.
The auxiliary control lever is used to raise and lower
the forks in the mast. Pull lever to rear to raise forks
a n d p u s h l e v e r f o r w a r d t o l o w e r f o r k s .
Procedure:
Remove carriage fork combination or other
attachment from boom head (refer to Attachment
Installation - page 23).
Install mast on boom head.
Connect auxiliary hydraulic hoses to mast
cylinder.
Always level the handler before raising the boom
or the forks, with or without a load.
To travel with a load, lower forks fully in mast and
lower boom to position load approximately one
foot above ground.
Use mast as required to increase vertical reach of
handler.
Use a signal man to assist in positioning the load if
necessary.
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Do not attempt to handle a load with mast
attachment until you have studied mast
capacity chart carefully. If your handler
does not have a mast capacity chart, ask
your supervisor to get one.
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