Pub. 1147 - Rev. 7 SEPTEMBER 2004
13
Mechanical Dock Leveler Hydraulic Conversion
INSTRUCTIONS FOR THE POST WITH EXTENSION STRUT BASE (Type II)
Perform the work in this order:
1. Measure the height of the front sub-frame.
2. Slide the base into the non-chamfered side of the base extension. Measure the distance from the shoulder of
the base to the bottom of the base extension. This distance should match the height of the inside of the leveler
front sub-frame.
3. Turn the base in the extension so that the hole through the base is perpendicular to the weld line on the base
extension.
4. Securely weld together the base and extension at the proper height.
5. Locate the strut base with extension within 12" of the centerline of the leveler so that it does not interfere with
the board operation. Before beginning installation, check for potential clearance problems with lip lugs, header
bridge bars, lip stop bolts, etc.
6. Position the strut base with extension so the hole is parallel to the front of the leveler and the chamfered edge is
against the front frame.
7. Shim under the front sub-frame at the location of the post for support. The shims should be tack welded in
place and should be snug enough to transfer any strut load directly to the concrete. See Figure 4.
8. Weld the strut base to the front frame as allowed by the leveler design. See Figure 6.
9. Remove and discard existing maintenance strut components.
10. Go to section titled Lip Instructions.
FIGURE 6 (BASE WELDING WITH EXTENSION)
