Use; General Warnings; Adjusting The Speed - Ober MTR Instrucciones De Uso

GB

USE

OBER tapping heads are extremely powerful plus compact dimensions. They are supplied with quick release chucs for
fitting tap holder bushes with clutch.

GENERAL WARNINGS

Never point the tap ping head towards people when it is connected to the power supply.
STARTING
Connect both R and L infeed hoses and then supply compressed air to the one corresponding to the rotation direction
required by the work cycle. Connect the other input to the discharge system. An operator positioned behind the motor
base to connect the L air infeed hose to the compressed air supply will see the shaft rotate in an anti-clockwise direction.
If the R air infeed hose is connected he/she will see the shaft rotate in a clockwise direction. (Fig.4)

ADJUSTING THE SPEED

The motor speed can be varied by varying the compressed air line pressure upstream, or by using a choke system,
preferably involving exhaust airflow.
WARNING: adjusting the air flow will modify motor performance.
NOTE: Use the silencer supplied to reduce noise levels or, where possible pipe the exhaust airflow to a separate
chamber.
An example of a connection circuit for the reversing motor is shown in fig. 4:
V1 = valve 2/2, used to stop the air flow.
V2 = 5/2 bistable valve
V2 in position a: right rotation
V2 in position b: left rotation
R1, R2 = flow regulators, used to adjust motor speed
The circuit example shown is purely indicative. The valves can be controlled using either a mechanical, pneumatic or
electric system which can be controlled directly or using a logic circuit remote control or PLC.
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