Adjustment - Pentair VLR Serie Manual De Instrucciones

MACHINE wITH SINGLE-PHASE MOTORS
Carry out the following operations to connect the machine to the power supply system:
• Make sure that the motor is fit for the
voltage mains
• Cut-off the electric system by means
of the cut-off switch
• Unscrew the screws of the terminal
box
• Fit the power supply cable in the
fairlead
A - If the rotation direction matches the rotation direction shown by the arrows on the machine head, the connections are
correct
B - If the rotation direction is the opposite to the one shown by the arrows on the machine head, carry out the following
operations:
• Cut-off the electric system by means
of the cut-off switch
• Unscrew the screws fastening the
terminal box cover

3.7 ADjUSTMENT

3.7.1 MACHINE MOTOR COUPLING ADjUSTMENT
Carry out the following operations to adjust the machine-motor coupling:
• Cut-off the power supply system by
means of the cut-off switch
• Unscrew the screws fastening the
joint protection
A - If it freely rotates, carry out the following operations:
• Refit in place the joint protection
B - If the joint does not rotate easily, carry out the following operations:
• Loosen the socket-head screws
joining the two half-joints
• Adjust the distance between motor
and impeller centres using a
screwdriver as a lever
• Connect the lines and the ground
• Refit the terminal box cover with the
gasket
• Tighten the screws of the terminal
box cover
• Connect the power supply by means
of the cut-off switch
• Using a jumper, temporarily short-
circuit the condenser terminals
• Change the jumper positions
• Remove the jumper
• Remove the joint protection
• Manually rotate the joint
• Tighten the screws securing the joint
protection
• Tighten the socket-head screws
joining the two half joints
• Refit the joint protection
• Give a current pulse to the machine
• Check the rotation direction
• Refit the terminal box cover with the
gasket
• Tighten the screws of the terminal
box cover
• Check that the joint freely rotates
• Tighten the screws fastening the joint
protection
GB
37