WycoTool WBP50 Backpack - Manual (Page 5)

User Manual
Page 5 March 2014
SAFETY
Read and follow all safety precautions given in the Honda
engine instruction manual for their GXH50 engine . Read and
follow the safety instructions given below .
• WHEN THE BACKPACK IS WORN, THE FLEX SHAFT
MUST ALWAYS BE ON THE RIGHT HAND SIDE OF THE
OPERATOR AS ASSEMBLED BY THE FACTORY. IF USED
ON THE LEFT SIDE, THE MUFFLER EXHAUST WOULD BE
DIRECTED TOWARD THE OPERATOR’S BACK, CREATING
A DANGEROUS SITUATION.
• NEVER FILL THE ENGINE WITH GAS WHILE THE
BACKPACK IS ON OPERATOR’S BACK OR WHILE IT IS
RUNNING! IF FUEL IS SPILLED, WIPE IT AWAY CAREFULLY,
AND WAIT UNTIL THE FUEL HAS DRIED BEFORE
STARTING THE ENGINE.
• FLAMMABLE, NO SMOKING.
• NEVER RUN THE ENGINE WITHOUT THE FLEX SHAFT
ATTACHED. WITH THE FLEX SHAFT REMOVED, THE
ROTATING SHAFT IS EXPOSED, WHICH COULD GET
ENTANGLED WITH LOOSE CLOTHING, HANDS AND
OTHER ITEMS, CAUSING A DANGEROUS SITUATION.
• ALWAYS WEAR HEARING AND EYE PROTECTION.
• KEEP HANDS AWAY FROM HOT METAL PARTS OF THE
ENGINE AND SPEED INCREASER.
DO NOT OPERATE THE UNIT ABOVE SPEEDS LISTED IN
“OPERATION” ON PAGE 7 . EXCESSIVE SPEEDS WILL
DAMAGE THE ENGINE AND VIBRATOR HEAD AND IT WILL
VOID ANY WARRANTY.
BENEFITS OF VIBRATION
Why use Wyco products to vibrate?
• Increased concrete strength by removing air voids .
• Improved appearance by removing air voids .
• Increased bond between concrete and reinforcing bars .
• Fluidized concrete allows a stiffener mix with a lower
water to cement ratio to be placed . This increases
concrete strength .
• Reduced cold joints and honey combing .
HEAD AND SHAFT SELECTION
The WBP50 uses a quick disconnect (Q .D .) . The Q .D . connect
lets you push the flex shaft assembly into the motor
connector, rotate it 1/4 turn, then use a lever mechanism to
lock it in place .
If using a Wyco shaft with a threaded end, threaded male
connector part number W423500 is required .
Shaft Head
CK-8900
750-D (13/16" square)
750-EH (1" square)
CK-9500
750-FI (1-3/8" square)
750-GI (1-3/4" square)
750-LI (2" square) recommended
750-SBI (2" round short)
LI is the largest sized head and is recommended with
this unit .
Although a standard 14-foot shaft length is available for all
head sizes, the length may be cumbersome to handle . The
recommended shaft lengths are 7 and 10 feet . Heavy duty
flex shafts—available for the 1-3/8" and larger head sizes
only—are available in the two most common lengths, 7 ft
(part number W989509) and 10 ft (part number W989512) .
These shafts have reinforcing springs that increase life in
this application .
Use the head size that best matches the application . Consider
the vibrator’s radius of action when selecting a vibrator
head, ensuring that the entire area of concrete is vibrated .
A vibrator’s radius of action is approximately 4 times the
head size (head sizes are listed in the table above) . This is a
general guide, and it can vary significantly with variations in
concrete mix design and type of application . The radius of
action is the distance from the vibrator head within which
consolidation occurs .