Position of breather valve/oil drain plug in motor flange

As shown in the mounting position sheets, the position of the breather valve/oil drain plug depend on the gearmotor mounting position.

The following table lists the position of the breather valve and the oil drain plug depending on the mounting position.

Mounting position

Breather valve position

Oil drain plug position

M1, M3, M5, M6

In the gear unit housing

In the gear unit housing

M4

In the motor flange

In the gear unit housing

M2

In the gear unit housing

In the motor flange

If the breather valve (M4 mounting position) or the oil drain plug (M2 mounting position) is positioned in the motor flange, the position depends on the terminal box position.

The positions of the breather valve/oil drain plug in the mounting position sheets always refers to the standard terminal box position 0°. Note that the position of the breather valve/oil drain plug is changed depending on the possible terminal box positions (90°, 180°, 270°).

The following figure shows the exact position of the breather valve or oil drain plug in the motor flange.

[A]

Position of breather valve/oil drain plug

[d]

Diameter of countersinking

[B]

Continuous core drilling

[l]

Thread length

[C]

Counterbored bore

[a]

Flange diameter

[α]

Drill angle

[β]

Position angle