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MODEL 44-50
VIBRATORY
DRIVER/EXTRACTOR
III. PREPARATION FOR OPERATION
F. BLEEDING HYDRAULIC CLAMP HOSES
1. When the vibrator and hydraulic clamp are shipped with all hoses attached (between
vibrator and clamp and five main hoses connected to the vibrator), the hoses are usually
full of fluid and may be used immediately. However, if any of the clamp hoses are
connected at the jobsite or if air is present in hoses, they must be bled prior to operation.
2. Read SECTION III - OPERATING INSTRUCTIONS.
3. Start and warm up the diesel engine in accordance with SECTION III-C - STARTING
AND WARMING UP ENGINE.
4. With the engine warmed-up and running at 1500 RPM, loosen the close-clamp line at
the hydraulic clamp. Turn the clamp switch on the control pendant to CLOSE. Wait until
fluid flows from the connection at the hydraulic clamp. When fluid flows without air,
tighten the connection.
5. After the line has been bled, alternately turn the clamp switch to CLOSE and OPEN to
insure that the clamp is working properly. It may be necessary to bleed the line more
than once. The open-clamp line may also require bleeding.
G. FILLING VIBRATOR PRESSURE HOSE
1. The vibrator is usually shipped with the vibrator hydraulic hoses full of fluid and the unit
may be used immediately. However, if the pressure hose has been removed from the
vibrator, the hose should be allowed to fill with hydraulic fluid prior to full speed operation.
2. Read SECTION III - OPERATING INSTRUCTIONS.
3. Start and warm up the diesel engine in accordance with SECTION III-C - STARTING
AND WARMING UP ENGINE. Hold the vibrator in a vertical position.
4. With the engine warmed up and running at 1000 RPM, turn and hold the vibrator switch
REVERSE. The hoses will fill in approximately 5 minutes.
Use caution when bleeding any hydraulic lines, even low hydraulic
pressure can cause injury to personnel.
If vibration begins in the vibrator, stop immediately and recheck
hose connections.
II-8
OPERATING
INSTRUCTIONS
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