Poweramp HNL SERIES HYDRAULIC - Manual (Page 20)

18 Manual No. 4111-0029
November 2009
May 2012
INSTALLATION
A ramp mount-weld on used with a formed angle application
is used when dock edge is damaged, there is no dock steel
securely anchored into the concrete, and the dock height is
too low and leveler must be installed above this height to
correct this situation.
Installation Steps:
1. Remove all existing bumper material and protruding
objects from dock edge. Clean and sweep dock
edge free of debris and flammable chemicals before
installing unit.
2. Review and follow formed angle installation instructions
prior to leveler installation. Reference page 18
3. At chosen location for Edge of Dock leveler, locate the
center of space and mark a point half of the base plate
width to the left and right.
4. At the points marked to each side of center, measure
and mark points 7-3/4” below dock level less height the
unit is to be raised to locate bottom of base plate. This
will locate the top of the base plate X” above dock level.
5. Using a proper lifting device, raise and position the
leveler base plate to marked position. While holding
base plate tight against dock face, tack weld securely
to dock steel on left hand end of leveler. Check right
hand end of base plate, ensure that end is against dock
steel and that the bottom of the base plate is even with
the marks made previously. Tack right hand end to
dock steel. Support unit until final welding is ready to
complete.
6. Position bump blocks out approximately 5/8” out from
the edge of the inside flange of the bump block to the
end of the base plate. Position the top of the tread
cover plate on the bump blocks to be flush with the top
of the base plate. Tack weld bump blocks to dock steel.
7. Place steel ramp plate in position, flush with top
backside of base plate. Mark along full length of back
edge of ramp plate. Slide ramp plate forward over dock
leveler the width of bushing tool, approximately, 2”.
8. Place bushing tool on marked line at each end of ramp
to ensure proper alignment at both ends, and tack weld
ramp plate to dock leveler to hold ramp plate in place
while bushing. A Skil Roto Hammer #736 or similar tool
is recommended.
9. Using the back edge of the ramp plate as a guide,
groove concrete approximately 3/4” deep by 2” wide,
and should be the entire length of ramp plate.
10. Break tack welds holding ramp in place, slide ramp
plate back into position with the top of the ramp plate
flush with the top of the base plate. Tack weld each end
and center of ramp plate to base plate.
11. Drill 5/8” dia. by 5” deep holes through ramp plate
at back edge. Install anchor bolts per manufacturers
specifications, and tighten securely. Weld anchor bolt
nuts to ramp plate using a 1/4” fillet weld all the way
around the nut. Cut off any portion of the anchor bolt
exposed through the nut, and plug weld around the top
of the nut to the anchor bolt. Ensure the top of the nuts
are well rounded for smooth rollover.
12. Complete welding of tacked parts as follows:
A. Apply continuous weld across top of each bumper
and base plate to ramp plate. Skip welding is
acceptable to prevent warping, but complete weld
must be completed.
B. Weld vertically along each end of base plate and
on both inboard and outboard flanges of bump
blocks.
C. Fully plug weld all holes in base plate.
13. Installer must remove all welding slag, and repaint
welded areas.
14. Installer must adjust main springs on all mechanical
Edge of Dock levelers to provide desired tension for
smooth operation. Stand on ground in front of leveler,
with the unit raised and secured in the maintenance
position, loosen jam nut on the underside of the linkage
pin. To start allow about 3/4” to 1” of threads between
top of jam nut and linkage pin. Using an open faced
wrench, hold locknut on inside of spring while tightening
threaded bolt until washer on top side sprint closes up
tight to jam nut. Test operation of unit. Further adjust
spring tension if needed by advancing jam nut toward
linkage pin and tightening threaded rod. After desired
unit operation is achieved, tighten jam nut to outer
washer on spring. Springs must be adjusted alternately
to have equal spring tension.
15. Before install is complete, installer must make a final
operational check of dock leveler to verify all phases
of install are correct. Installer must complete, sign,
and return the Installation Checklist upon completion.
Reference page 24.
E.O.D. Installation Instructions
Ramp Mount - Weld On w/Formed Angle