Operation – Danuser LM40 Hammer User Manual
Page 12

12
Operation
Hammer w/ Grapple
Before you operate the attachment, check over pins and
connections to be sure they all are securely in place. Make
sure the Hammer is securely latched to the vehicle.
Consult local utility companies to make certain there are
no buried gas lines, electrical cables, etc., in the work
area before beginning operation. Do not drive posts near
underground utility lines.
The Hammer is designed
to be operated from
the vehicle seat. Keep
bystanders away from the
work area. Do not operate
with another person in
contact with any part of
the Hammer.
Stay away from power
lines when transporting,
raising, or operating the
attachment.
Raise the Hammer approximately two feet (2') off the ground with the Hammer
tilted slightly forward so the grapple jaws are visible.
Drive the vehicle forward and position the grapple jaws around the post,
approximately four inches (4") from the top of the post.
Activate the auxiliary hydraulics in the reverse direction for two (2) seconds or
until the grapple jaws are firmly clamped around post.
Raise the loader arms until the bottom of the post is above the ground.
Position the post in desired location and lower the Hammer until the post is inside
the lower portion of the Hammer.
Intermittently activate auxiliary hydraulics in the forward direction to release the
grapple jaws from the post. The Grapple will rotate up and away from the post.
Continue lowering the Hammer until the floating anvil has moved up and the
weight of the Hammer is supported by the post.
Place the loader arms in the float position. If the vehicle is not equipped with
float, the loader arms should be lowered, applying down force to the post.
Move the vehicle slowly left, right, forward, or backward as needed until the post
appears vertical to the ground.
The Hammer can now be activated by turning the auxiliary hydraulics to the
forward position. If you are not using the loader float position, the loader arms
should be lowered as the post is driven into the ground.
Drive the post to the desired depth.
As soon as the weight is released (starts to drop), shut off the auxiliary hydraulics,
raise the Hammer until the post is cleared, and move to the next post.
STEP 1:
STEP 2:
STEP 3:
STEP 4:
STEP 5:
STEP 6:
STEP 7:
STEP 8:
STEP 9:
STEP 10 :
STEP 11:
STEP 12:
When stopping the Hammer, the hammer weight catch should be visible through
the viewing slots on the back of the case. Never stop the Hammer with the
hammer weight partially raised.
Personal protection
equipment including hard
hat, safety glasses, safety
shoes, gloves, and ear
plugs are recommended
during assembly,
installation, operation,
maintenance, service,
removal, or movement of
the attachment.