SECTION 11161

DOCK LEVELERS

PART 1 GENERAL

SECTION INCLUDES

Prefabricated steel leveler [with guard rails].

Operating hardware.

Mechanical restraint safety vehicle lock.

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [03100 - Concrete Formwork] [______-____________]: Placement of leveler frame [and safety lock frame] into concrete [loading dock.] [________.]

RELATED SECTIONS

Section 03300 - Cast-In-Place Concrete: Concrete pit.

[Section 05500 - Metal Fabrications:	Perimeter guard rails.]

[Section 09900 - Painting: Field painting of exposed steel members.]

Section 11164 - Dock Seals and Shelters.

Section 11165 - Dock Bumpers.

REFERENCES

ANSI MH14.1 - Industrial Loading Dockboards (Ramps).

SYSTEM DESCRIPTION

Dock Leveler:

Operation:	Manual.

Deck Width:	[____] inch ([____] mm).

Deck Length:	[____] inch ([____] mm).

Operating Range:	[____] inches ([____] mm) above dock level, [____] inches ([____] mm) below dock level.

Capacity:	[____] lbs ([____] kg).

Rollover/Crossover	[____] lbs ([____] kg).

Capacity:

[Railing Height:	[____] inch ([____] mm).]

Railing:	To Resist Lateral Thrust of [100] [____] lbs ([445] [____] N) without permanent deformation or set.

Vehicle Restraint: Mechanical safety lock, to automatically lock a truck bumper to the loading dock and restrict vehicle movement, with manual release mechanism [with indicator to identify release].

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Shop Drawings: Indicate required opening dimensions, tolerances of opening dimensions, [placement dimensions of safety lock device,] perimeter conditions of construction and [________].

Product Data: Provide materials and finish, installation details, roughing-in measurements, operation of unit [and safety lock device].

Manufacturer's Installation Instructions: Indicate special requirements and [________].

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700.] [________.]

Operation Data: Provide operating instructions, identify unit limitations.

Maintenance Data: Provide unit maintenance information, lubrication cycles, spare parts manual.

FIELD MEASUREMENTS

Verify that field measurements are as [indicated [on shop drawings].] [instructed by the manufacturer.]

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600.] [________.]

EQUIPMENT

Leveler:	[1/4] [____] inch ([6] [____] mm) steel checker plate deck, reinforced on underside, welded to fabricated steel frame; [hydraulic] [steel spring] actuated, counter balanced with [16] [____] inch ([400] [____] mm) long automatically operated plate lip; lip to lock in [downward] vertical position when leveler is at rest at dock level.

****** [OR] ******

Leveler:	ANSI MH14.1, [Fixed type] [Dock Face Mounted Type]; [________].

Railing:	Steel pipe [____] inch ([____] mm) nominal size, top rail and [two] [three] [________] intermediate horizontal rails, uprights at [____] inch ([____] mm) o.c.; [threaded] [welded] joints, steel anchor [plates] [sockets] [________].

Pit Frame: Steel angle, [3 x 3 x 1/4] [__ x __ x __] inch ([75 x 75 x 6] [__ x __ x __] mm); welded corners, fitted with anchors [[____] inch ([____] mm) o.c.] for concrete embedment.

Vehicle Restraint: Mechanical lock, fabricated and welded steel plate construction, spring loaded to automatically latch when activated, to conform to ICC semitrailer vehicle bumper requirements for dimension and placement.

ACCESSORIES

Bumpers:	[Fabric reinforced] [Molded] rubber pads, ozone resistant, positioned and anchored:

Projection From Wall: [4 1/2] [6] [____] inches ([115] [150] [____] mm).

Vertical Height:	[10] [____] inches ([250] [____] mm).

Length: [15] [24] [____] inches ([375] [600] [____] mm).

Profile:	[Rectangular] [Semi-circular] [T shape] [L shape] [________].

Attachment Hardware:	[Galvanized] bolts and [expansion shields] ["L" shaped anchor rods for casting into concrete] [________].

FINISHES

Leveler Platform: [Hot dip galvanized to [1.25] [____] oz/sq ft ([380] [____] gm/sq m)] finish.] [Primed finish.] [Factory enameled finish.] [Unfinished.]

Leveler Frame: [Hot dip galvanized to [1.25] [____] oz/sq ft ([380] [____] gm/sq m)] finish.] [Primed finish.] [Factory enameled finish.] [Unfinished.]

Railing:	[Hot dip galvanized to [1.25] [____] oz/sq ft ([380] [____] gm/sq m)] finish.] [Primed finish.] [Factory enameled finish.] [Unfinished.]

Pit Frame: [Hot dip galvanized to [1.25] [____] oz/sq ft ([380] [____] gm/sq m)] finish.] [Primed finish.] [Unfinished.]

Vehicle Restraint: [Yellow] [________] painted hook, [galvanized] [zinc plated] steel operating mechanism.

PART 3 EXECUTION

EXAMINATION

Verify existing conditions under provisions of Section [01039.] [________.]

Verify that rough-in opening is acceptable.

PREPARATION

Provide pit frame and integral anchors for placement by Section [03100.] [________.]

INSTALLATION

Install dock leveler [and vehicle restraint] unit in prepared opening in accordance with manufacturer's instructions.

Set square and level.

Anchor unit securely, flush with dock. Weld back of leveling dock to pit frame. Touch-up weld with primer.

Anchor safety lock securely, flush with vertical dock face.

ADJUSTING

Adjust work under provisions of Section [01700.] [________.]

Adjust installed unit [and safety device] for smooth and balanced operation.

SCHEDULES

Main Loading Dock: 30,000 lb capacity, 6 feet wide x 8 feet long, no guard rails, vehicle restraint device under each unit; laminated rubber bumpers, full width.

Garbage Unloading Dock: 10,000 lb capacity, 6 feet wide x 6 feet long, guard rails on two sides.

END OF SECTION