MODELJL-CP/JL-DP DEEP PIT FRAME

IT IS ABSOLUTELY NECESSARY THATTHE FRAMING MEMBERS BE INSTALLED ACCURATELY, IN A LEVEL PLANE. WE CANNOT BE RESPONSIBLE FOR PROBLEMS CAUSED BY IN CORRECT FRAME INSTALLATION.

1. A recess must be provided in the floor at the location of the grating. The recess must be deep enough to allow construction of the desired pit, but no less than 4 1/4’ (10.8 cm), to allow cross supports to fit under the grating. The length and width should be 6’ (1 5.2 cm) greater than frame dimensions, which allows room to maneuver the frame into position, clearance for anchor bolts, and sufficient mortar strength to support the frame and grating assembly.

2. Using the hex nuts provided, install the 1/4" x 3 (0.6 cm x 7.6 cm) anchor bolts in frame channels. Space for two foot intervals on all sides of the frame.

3. Assemble the frame sections. Insert 1/4 - 20 x 1" (2.5cm) self-threading screws through the prepunched holes in the ends of the plain side frame sections, and attach with the remaining screws. Tighten all screws when finished.

If optional drain pan is used — Lay the frame upside down on a level surface. Lay the pan sections on the bottom of the frame in the ledge provided. Place the 1/8" x 1/2" (0.3 cm x 1.3 cm) aluminum reinforcement strip on top of the pan material, a section at a time, and attach both to the frame with the 1/8" (0.3 cm) pop rivets. Rivet pan sections together if necessary. Caulk all seams.

4. Place assembled frame into opening at desired location. Shim as necessary to level frame to final height of finished floor surface. Make any drain or trap connections.

5. Pour cement mortar around edges of frame and trowel well so that cement will provide proper support for the frame and grating. Pour cement in center of assembly to form concrete pit if needed.

6. Before mortar is set-up, be sure the sides of the frame are straight, and corners at the correct angles. Check inside dimensions of frame against drawing measurements at several places to be sure size is correct. REMEMBER — the grate is made to fit snuggly into the frame according to the drawing dimensions. Use spreaders if necessary to hold frame at correct dimensions.

7. When cement has hardened, plywood or some other material should be installed in the recess to protect frame edges from damage prior to installation of grate.