17
4111-0004 — Apr. 2021
© 2021 Systems, LLC
12. With the rear hinge frame angle (
F
) tight against
the rear pit curb angle (
G
), weld the rear hinge frame
angle (
F
) to the rear pit curb angle (
G
) using a 3/8 in.
(9.5 mm) flare bevel skip weld — each weld being 6
in. (152 mm) long.
• Start at each end with a 6 in. (152 mm) long
weld. Space all the other welds out evenly,
leaving approximately 6 in. (152 mm) space
between each weld.
Note:
Figure 11 shows a typical weld pattern. The
weld pattern will vary slightly depending on size of
dock leveler.
13. Weld front of dock leveler frame (
B
) to shims
located under the keepers, then weld the shims to
the front pit curb steel.
14. With leveler welded into place, remove the
shipping bands from around lip and leveler frame.
15. Using an external lifting device (i.e. crane or fork
truck) attached to the platform lifting brackets, slowly
raise the platform. Check for binding as platform is
being raised.
16. If binding occurs, lower the platform. Reposition
leveler and/or add or remove shims as necessary.
Slowly raise platform again. If platform still binds,
contact Systems, LLC Technical Services for further
instructions.
Install Dock Leveler (continued)
INSTALLATION
If the platform is raised using an external lifting
device or the hydraulic system is opened to
atmosphere, air will enter into the hydraulic system.
Whenever this happens, always cycle the leveler
at least 4 times using the leveler’s own hydraulic
power system before allowing the leveler to be put
into service. This is to make sure all air is purged
from the hydraulic cylinders.
DO NOT weld continuously along the full length
of the rear hinge frame angle. This can put
unnecessary stress on the leveler components,
causing the leveler to malfunction and shorten the
lifespan of the affected components.
