Danuser 9000 Postmaster/SlabBlaster - Manual (Page 14)

1
Picking up a post from the ground may require a few tries to get it perfect. We recommend
attaching a 24 inch length of deck chain to the hook provided next to the bottom of the drive
assembly. This will help the operator align the Grapple jaws with the head of the post,
ensuring a perfect pick-up of the post every time.
STEP 1: Set the post(s) on the ground with the head(s) of the post(s) facing the vehicle.
STEP 2: Raise the Postmaster approximately 2 feet off the ground, making sure the Grapple
arms are in the up position and the jaws are open.
STEP 3: Drive the vehicle forward and position the Postmaster over the head of the post.
Align the end of the guide chain approximately 1 to 2 inches to the right of the
head of the post.
STEP 4: After the vehicle is in position, lower the lift arms until the Postmaster is resting
lightly on the post, allowing for the grapple to center the post.
STEP 5: Turn the auxiliary hydraulics to the reverse position until the jaws close on the
post.
STEP 6: Lift the Postmaster 4 to 6 inches off the ground. Turn the auxiliary hydraulics to
the reverse position until the post is securely held by the Grapple.
STEP 7: Raise the arms of the vehicle until the post has swung down and is clear of the
ground. This should set the head of the post into the positioning collar. If the
post is jammed against the front or back of the positioning collar, DO NOT release
the jaws. Back up the vehicle while lowering the post to the ground. Once the
post is on the ground, open the jaws.
STEP 8: When the post has been properly positioned in the positioning collar, move the
vehicle to the desired location, and lower the lift arms until the tip of the post is
touching the ground.
STEP 9: Briefly turn the auxiliary hydraulics to the forward position just enough to release
the hydraulic pressure. You do not want the jaws to open at this time. Releasing
the hydraulic pressure should loosen the jaws enough that the post will slide
through but still maintain the spring tension that is holding the post in position.
STEP 10: Align the post by moving the vehicle and using the guide chain as a plum line.
Operation
(continued)
Opening the jaws of the Grapple when the post is not in the
positioning collar could cause the post to fall back toward
the vehicle. Serious injury to the operator could occur.
w A R N I N G
If the post was jammed on the back of the positioning collar (toward the vehicle),
shorten the guide chain one link at a time. Repeat STEPS 3 - 7 until the post is
positioned in the collar. If the fence post was jammed on the front of the
positioning collar, lengthen the guide chain one link at a time. Repeat STEPS 3 -
7 until the post is positioned in the collar.
NOTE
This guide chain may need to be adjusted up or down in length to compensate for
the arc of the vehicle’s lift arms.
NOTE
You do not need to center the jaws over the post since the grapple is self aligning.
NOTE