BP-25H CE GASOLINEVIBRATOR — OPERATION
CAUTION - READ MANUAL
DO NOT attempt to operate the vibrator until the Safety, General Information and Inspection sections of this manual have been read
thoroughly and understood.
Backpack Placement
1.With the engine running at idle speed, place the backpack on an elevated flat level surface (workbench or tailgate of a truck).This will enable the operator to place the unit on his back more easily.
2.The backpack unit attaches very much like a hiker’s knapsack. Place your arms through the spaces between the shoulder straps and the frame.
3.Next, bring the abdominal straps to the front and adjust the straps accordingly. There are two sets of velcro straps, one set for the chest an another for the waist area.
Operation
1.Insert the vibrator head into the concrete.
2.Turn the throttle grip (Figure 16) CW to the “RABBIT” (fast) position for normal operation.
4.Immerse the head for 5 to 10 seconds, (until air stops rising), and then withdraw it slowly to let the concrete fill the void left by the vibrator head.
5.The vibrator head should be completely below the surface when vibrating to keep the head cool.
6.Use the flexible shaft in as straight a position as possible and DO NOT bend the flexible shaft sharply at any point. Sharp bends may cause overheating, requiring early replacement of the flexible shaft.
CAUTION - SHAFT OVERLOAD HAZARD
If the shaft begins to helix (buckle) excessively during operation, stop and investigate. This is an indication of an overload condition.
CAUTION
The vibrator head is cooled by the concrete. Operation of the vibrator head in air longer than 2 minutes will cause overheating of the bearings which result in premature head failure.
X
CW ROTATION
INCREASES
ENGINE SPEED
THROTTLE
GRIP
X
Figure 16. Throttle Grip (Rabbit/Fast)
3.Insert the vibrator head vertically into the concrete and move it in the pattern shown in Figure 17 to maintain a consistent area of influence.
Figure 17. Area of Influence
with 50% Radial Overlap
| DO NOT operate head out of the mix | |
NOTE | for more than a few minutes to prevent | |
overheating. Wet concrete keeps | ||
| ||
| vibrator head at proper operating | |
| temperature. |
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