Installation
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3
2.0
Installation
The modular sections of the OTR series truck scale are shipped pre-assembled and ready to be placed into position on
temporary setting blocks using a crane.
The general assembly order is summarized below:
• Set deck modules into position on setting blocks
• Install load cell mounts in pockets and anchor bolts in base plates
• Run cabling and connect electrical wiring to junction box
• Connect indicator and peripheral devices
2.1 Foundation Slab Cure Period
Standard concrete reaches full strength after a 28-day curing period. At seven days, standard concrete reaches approximately
75% of its maximum strength and can handle moderate loads.
Please refer to ACI318 for additional information regarding concrete curing requirements, and consult the concrete vendor to
discuss curing requirements based upon the mix used specifically for the site. Loading of a slab before it reaches 75% of its
maximum strength may cause permanent structural damage.
2.2 Assembly Time Estimates
When scheduling installation for a typical three-module, 70' truck scale, plan for a two-hour minimum crane rental to place the
modules into position. A two-man crew, aided by a crane operator, can unload modules from the truck and place them into
position in approximately one hour.
Mount and load cell installation requires approximately three to four hours. Electrical wiring is run through conduit and can be
done in approximately two to three hours.
For concrete deck scales, a concrete crew of three or four can normally pour, finish, and seal-cure the concrete deck surface of
a 70' scale in two to three hours. Final wiring connections can normally be completed the same day while the concrete is curing.
These estimated times may vary.
Recommended Equipment and Tools (Steel Deck)
• Crane with a minimum 8000 lb* capacity
• Four chains or cables (8' minimum length each) with hooks or clevises
• 3/4'' rotary hammer drill
• 3/4'' x 24'' carbide masonry bit
• One low-profile 4-ton bottle jack
• 5 1/2'' setting blocks
• Various thickness shims to level scale
• Torque wrench to 100 ft-lb
• Socket wrenches to 1 1/2'' (drive compatible with torque wrench)
• Box end wrenches to 1 1/4''
• Open end wrench set (7/16'' – 1 1/4'')
• 4' bubble level
• Small torpedo level
• Hammers, maul, pry bar
• Hand tools for pulling and connecting electrical wiring
*Typical single module weight of 70' x 11', three-module truck scale.
Note
