Autoquip BASCULE BRIDGE - DOUBLE LEAF - Manual (Page 31)

POWER UNIT
DANGER!
GENERAL MAINTENANCE
HIGH VOLTAGE!! Disconnect and/or lock out the electrical supply to
the power unit prior to any maintenance being performed.
1. The power unit utilizes a heavy-duty 5 HP/208, 230, or 460 Volts/60 hertz/3 phase
motor coupled to a high-pressure positive displacement gear pump, and Autoquip
Corporation’s patented Deltatrol valve assembly
2. The following should be referenced in connecting the standard heavy-duty motors to
power sources. Remember that heavy wire must be used all the way to the power
source.
Power Unit 208 Volts 230 Volts 460 Volts
Standard Three Phase 16 AMPS 15.2 AMPS 7.6 AMPS
NOTE: All amperage draws shown are full-load amperages.
CYLINDER REMOVAL AND REPACKING (see Figure 14)
1. Lower the bridge and block securely. See “Blocking Instructions”.
2. Loosen and remove the cylinder hose at the hose union in the tee connection
between the cylinders. Place the open end of the hose in a container to receive oil
spillage.
3. Remove the pin retaining screw in the cylinder clevis or pin retaining rings, and
carefully tap out the clevis pin.
4. Remove the cylinder from the bridge.
5. Push the piston rod into the tube to eject as much oil as possible into a container.
6. Pull the rod out of the cylinder tube sufficiently to gain access to the face spanner
wrench holes on the rod end of the cylinder. Do not allow oil or dirt to be pulled back
into the hydraulic hose.
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