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MODEL 44-50
VIBRATORY
DRIVER/EXTRACTOR
II. PREPARATION FOR OPERATION
E. CONNECTION OF HYDRAULIC HOSES
1. Connection of hoses at power unit.
a. The vibrator and hydraulic clamp are connected to the power unit by five hydraulic
hoses (Fig. 1) on the previous page.
b. The hoses connect to the power unit with quick-disconnect couplers. Hose couplers are
arranged to insure correct connections at the power unit. See the diagram (Fig. 1) for
correct hose connection.
c. Clean couplers with a lint-free cloth before making connections.
d. Make sure that the couplers are fully run up, and hand tightened only, do not use
wrenches to over tighten.
2. Connection of hoses at vibrator.
a. The vibrator is usually shipped with the hoses attached to the vibrator. If the hoses have
been shipped separately, they must be connected in the field. Fig. 1 shows the correct
arrangement of the five hoses connecting the power unit to the vibrator.
b. The vibrator is usually shipped with the hydraulic clamp and hoses attached. If the
clamp has been shipped separately, the two hoses connecting the clamp to the vibrator
must be connected. (Fig. 2) shows the correct arrangement of these hoses.
For caisson clamps, four hoses must be connected. The two connections on the opposite
end of the vibrator are reversed from the positions shown in Fig. 2. Both ends of the
vibrator are stamped with an "O" and a "C" to insure correct connetion. The clamp
connections are also stamped with an "O" and a "C".
The power unit must be shut down during connection of the
hydraulic hoses.
Do not use engine starting fluid to clean quick disconnects,
this will damage the seals and result in an oil leak.
Starting the vibrator with the hoses reversed will result in low
power or possible ruptured hoses.
II-7
OPERATING
INSTRUCTIONS
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