Bosch 11335K - 35 lb. Demolition Breaker Hammer Installation Manual download pdf (Page 14)

14 Diamond Pier

Installation Manual

AUXILIARY PARTS AND EQUIPMENT

Post/Beam Brackets

The bracket needed to make the connection from the Diamond Pier foundation to the superstructure can

be purchased separately from a local lumberyard. The DP-50 pier typically has a 1/2" diameter

galvanized bolt embedded in the top of the pier (nut provided), and this bolt will connect to a Simpson

Strong-Tie

bracket (Model ABW) or a similar approved post base. The DP-75 pier has a 5/8" diameter

bolt at the top of the pier; this corresponds to the Simpson Strong-Tie ABU bracket or similar code-

approved post base. Check your local building code or building official to verify which post bases are

acceptable in your area, and make sure to match the post size and loads on the post with the

appropriate bracket size and bracket load ratings. Typically these brackets come with a "standoff" design

that separates the wood from contact with the base of the bracket and eliminates the need to drill into

the bottom of the lumber to compensate for the raised anchor bolt. Most post-base brackets have a wide

hole in the base that allows for horizontal adjustment of the final bracket location.

Horizontal beams may also be set directly in an appropriate bracket for direct connection to the Diamond

Pier foundation when constructing low-profile structures. Larger piers not shown on the "Residential

Diamond Pier Load Chart" (Table 1) have a variety of bolt diameters and configurations. Contact PFI for

more information if your project requires piers larger than the DP-50 or DP-75.

The proper bracket coating or finish should be chosen based on the lumber to be used and the treating

specifications of the project superstructure. If stainless steel is chosen, the embedded galvanized bolt

must be protected from contact with the stainless bracket with the addition of a plastic or rubber bushing

(not supplied) or the piers must be special ordered with embedded stainless steel anchor bolts to avoid

the potential for corrosion of dissimilar metals in contact.

Breaker Hammers and Driving Bits

Only automatic breaker hammers should be used to install the Diamond Pier pins. Any automatic

hammer that will handle a 1-1/8” hex shaft can be used, provided it can be properly and safely controlled

by the operator and not risk injury or damage to the pier. The Diamond Pier driving bit is recommended

for use with the breaker hammer. The driving bit has a 1-1/8" hex shaft, and can be rented or purchased

through a local dealer or purchased directly from PFI.

NOTE: The bits are NOT to be used with, or as, a sledgehammer.

Below is a list of commonly available electric automatic breaker hammers that have a range of impact

energies from 20 to 44 ft-lb. Soft or loose soils will allow for the use of lighter lower-energy hammers.

Stiff or dense soils will require electric hammers in the higher impact range or standard jackhammers

driven by compressed air. In most cases, the DP-50 and DP-75 are installed with electric hammers.

Roto-hammers are not adequate.

• MAKITA Model #HM1307CB 1-1/8” Hex 35-lb Demolition Hammer; Bit type: 1-1/8" Hex

• HITACHI Model #H65SD2 1-1/8" Hex 40-lb Demolition Hammer; Bit type: 1-1/8" Hex

• BOSCH Model #11335K Jack 15 Amp Breaker Hammer; Bit type: 1-1/8" Hex

• MILWAUKEE Model 5338 Breaker Hammer; Bit type: 1-1/8" Hex

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Bosch 11335K - 35 lb. Demolition Breaker Hammer Installation Manual Page 14