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Power Screed 12 or 14 feet

Information: Product | Specs | Operating | Safety

Operating Information

Wacker P31A Power Screed

To Start:

  1. Move the choke lever to the closed position (a1).
    Note: If engine is hot, set choke to open position (a2).
  2. Turn engine switch to "ON".
  3. Press the priming bulb (b) repeatedly until fuel can be seen in the clear plastic fuel-return tube (c).
  4. Pull the starter grip (d).
    Note: If the oil level in the engine is low, the engine will not start. If this happens add oil to engine.
  5. Open choke as engine warms (a2).
  6. Open throttle fully to operate.
To Stop:
  1. Reduce engine RPM to idle
  2. Turn engine switch to "OFF"

Operating:

A typical screeding of concrete using the wet screed proceeds as follows:

  1. Wet pads need to be established for wet screed guidance. Place wet pads(a) in strips no less than 2 ft. wide.
    Note: Hand tools such as magnesium floats are used in conjunction with a laser receiver, transit level, or grade stakes to establish the proper elevation of the pads.
  2. The float will be used to strike off or build up the level of the fresh concrete to the desired grade and is usually marked with an "X" (b) to signal the screed operator that grade has been established. A minimum of two areas should be marked per length of screed blade used to strike the entire pad.
  3. Place the blade on the pad and strike-off perpendicular to the strip axis (c). The operator now uses the marked pads as elevation guides.
  4. Concrete can be placed between the strips (d) and use them as "wet forms" for the rest of the placement. Strike-off at this point will be parallel to the axis of the initial wet pads of concrete (e).
    Note: Screeding MUST be complete before any excess moisture or bleed water is present on the surface, and before the strips have taken an initial set.

Exciter

The vibration speed is controlled by the throttle level on the power unit. However, the eccentric weight can be adjusted to increase or decrease the force of vibration.
Note: the Screed eccentric is preset at the factory to position 4&5.

To Adjust:
  1. Remove the 4 screws (a) mounting the blade to power unit.
  2. Remove the 3 screws mounting the eccentric housing (b).
  3. Using a 1/4" Allen wrench, loosen the screw (c) holding the eccentric weights in place.
  4. Adjust weights to desired setting: 0.95kN being the maximum (d) and 0.50kN being the minimum (e).
  5. Reassemble components and tighten all hardware.

Exciter Setting

Blade Model
Slump mm (in.)
0-48
(0.0-1.9)
51-74
(2.0-2.9)
76-99
(3.0-3.9)
102-124
(4.0-4.9)
127-150
(5.0-5.9)
152-+
(6.0-+)
Exciter Setting #
SB 4F
5
6
7
7
7
7
SB 15M
4
5
6
7
7
7
B 6F
3
4
5
6
7
7
SB 20M
3
4
5
6
7
7
SB 8F
2
3
4
5
6
6
SB 10F
1
2
3
4
5
5
SB 12F
1
1
2
3
4
4
SB 14F
1
1
1
2
3
3
SB 16F
1
1
1
1
2
2


Handles

For maximum comfort and user control of the wet screed during operation, the handle's vertical height (a) can be adjusted 360 and horizontal rotation (b) 180.


Lifting Machine


The wet screed is designed to be light and compact for transporting around the job site.
  1. To compact the wet screed, loosen screws (a) and fold down the upper handle. Tighten screws (a) to hold hand position.
  2. The lifting handle (b) at the base makes carrying the wet screed easier especially if longer blades are attached.

Kick-Stand

The kick-stand (a) props up the wet screed when it is not in use.


Min Rate     
Min Hours     
Day Rate     
Week Rate     
4-Week Rate     
$45.38 4$60.50 $181.50 $363.00

Quantity
Date Needed
MM/DD/YY
Time Needed
Date Returning
MM/DD/YY
Time Returning

- OwnersManual

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