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Wall Jacks - Instructions
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POSITIONING OF THE WALL JACKS:
A minimum of two Wall Jacks are required to lift any wall. The total number of Wall Jacks required will vary according to the length, weight, and structure of the wall. Walls that require more than two pick points or that require more that the rated weightlifting capacity of two Jacks will require 3 or more Jacks. To avoid serious deflection of the top plate when using two Jacks, place them so that 55-60% of the wall is between the two Jacks as shown in Figure 3.
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SETTING THE LIFTING BRACKETS:
Prior to positioning the Jacks, raise the wall slightly with a pry bar or claw hammer and place the Lifting Brackets beneath the top plate as shown in Figure 4. Two (for 2 x 4 walls) or three (for 2 x 6 walls) heavy nails must be driven through the holes in the back of the Lifting Brackets and into the top plate to secure the connection.
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SECURING THE JACKS FOR LIFTING:
Each Wall Jack should be positioned in line with and immediately next to the Lifting Bracket, and then nailed securely to the floor or near a joist (Figure 5). Always place Jacks on a solid, secure footing to prevent slippage during the lift. If nailing into light floor sheathing, position the Jack over a solid plank which is first nailed securely into the subfloor. After each Jack is nailed into place, use the winch to take a slight strain on the cable; inspect the cable to insure that is not damaged, fouled, or rubbing in any way. When the lift begins, the wall must go up as evenly as possible. Operators using even timing cranking on the winch handle can achieve a smooth lift. If on concrete, a plank may be extended to a solid object and used as a substitute. The plank must be secured to prevent it from slipping or lifting during the wall lift.
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| Caution |
- At no time during any lifting operation should ANYONE be allowed into the danger area under the wall being raised or on the far side of it.
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