Poweramp EH SERIES HYDRAULIC - Manual (Page 21)

19 4111-0004 —November 2003
Rev “B” February 2011
INSTALLATION
5. Raise the leveler platform fully by pushing and
holding the RAISE button .
NOTE: The platform of a properly operating dock
leveler will automatically stop rising when it
reaches its maximum full raised height, at
which point, the lip extends. When the lip is
fully extended, the powerpack will go in to by-
pass. (If the lip does not extend or extend
fully, see Platform Rises to Full Height, But
Lip Does Not Fully Extend in the
Troubleshooting section.)
6. Release the RAISE button to lower the platform.
As long as there is no truck present at the dock,
the platform will lower to the full below-dock
position as the lip folds.
NOTE: If a truck is present, the platform will lower
until the lip rests on the truck/trailer bed. (See
Operating Instructions in Operation section.)
1. Disconnect the external lifting device and chains
from the lifting brackets.
2. Check that the leveler is flush with the dock floor
and that the platform lip contacts both lip keepers
evenly.
If an excessive transition exists between the dock
floor and leveler and/or lip does not contact both
lip keepers evenly, contact Poweramp Technical
Services for further instructions.
3. Install the dock bumpers as required.
4. Turn the main electrical power ON.
Put New Dock Leveler Into Service
7. When the platform lowers to the full below-dock
position, push and hold the RAISE button until the
platform rises just enough to clear the lip keepers,
then release the RAISE button to allow the
platform to lower to the cross-traffic (stored)
position (lip engages lip keepers).
NOTE: For dock leveler's equipped with the Auto
Return To Dock (ARTD), the platform will
automatically return to the cross-traffic
position if the ARTD is enabled. When the
platform is at the full below-dock position,
there is a six-second delay before the
platform will automatically rise to the cross-
traffic position.
8. Perform steps 5 – 7 at least four times to purge
any air that may be in the hydraulic system and to
ensure proper operation.
9. Raise the platform fully. Hold the platform at this
position using the RAISE button and move the
maintenance prop to the service (upright) position.
Release the RAISE button to allow the platform to
lower until it is resting on the maintenance prop.
10. Secure the maintenance prop with the
maintenance prop lock-out.
10. With the maintenance prop supporting the
platform, remove the lifting brackets and Clean
Sweep frame section in between lip keepers, if
you haven’t already done so.
10. Release the maintenance prop by unlocking the
lock-out.
12. Push and hold the RAISE button until the
maintenance prop drops to its stored position.
Release the RAISE button and allow the platform
to lower fully.
13. Perform step 7 if not equipped with ARTD.
Always stand clear of platform lip when working in
front of the dock leveler. Serious personal injury or
death may result.
Unless the dock leveler is equipped with a
tethered remote, two people are required
to engage the maintenance prop: one person to
operate the unit, the other person to engage the
maintenance prop.