Installing the gear unit

 

Preparing the gear unit

Output shaft

Gear unit dome

 

Seal

*   Lubricate the gear unit dome and output shaft.

Lubricant: “High temperature paste PBC 1574”. For details, see page 83.

*   Press on the seal.

 

 

Gear rim

Compression springs

Cylindrical pin

 

*   Insert compression springs (2x, 3x, or 4x). Apply some grease if necessary.

*   Set the gear rim on the coupling half.

*   Insert the cylindrical pin.

 

 

Installing the gear unit

*   Push the gear unit into the housing. The correct position of the gear unit is determined through the gear unit dome and cylindrical pin.

 

 

Locking screw

 

*   Screw in the locking screw (fillister-head screw).

Size

Size and length

Tightening torque

GM2

M6x105

7 Nm

GM4

M6x105

7 Nm

GM6

M8x110

10 Nm

GM8

M10x110

10 Nm

 

 

 

Installing the chain guide

Gear rim

 

 

Coupling halves

*   Check the position of the coupling halves. The claws must be situated so that they grip precisely in the gear rim.

 

 

If necessary:

*   Turn the coupling halves on the gear unit until the claws are in the correct position.

 

 

*   Push the chain guide from below into the housing and hold it firmly.

 

 

*   Push the gear unit into the housing. Pull the chain slightly until the output shaft of the gear unit meshes with the chain sprocket.

*   Tighten the fillister-head screws (3x) in the housing.

Size

Size and length

Tightening torque

GM2

M6x85

7 Nm

GM4

M6x105

7 Nm

GM6

M8x110

18 Nm

GM8

M10x140

25 Nm

 

 

Only with an electronic hoist limit switch

 

Installing the magnet carrier

Magnet carrier

 

*   Apply threadlocker (lightly) to the thread of the magnet carrier.

*   Screw the magnet carrier in place. 6 Nm.

 

 

Installing the hoist limit switch PCB

Fillister-head screws with ribs M5x10

Hoist limit switch PCB

Protective conductor

 

*   Attach the protective conductor to the fillister-head screw at the bottom right.

*   Place the hoist limit switch PCB over the magnet carrier.

*  Use the fillister-head screws with ribs M5x10 (3x) to screw the hoist limit switch PCB tight. 3 Nm.

 

 

 

Connecting the chain hoist

*   Attach the couplings of the hoist motor and brake to the pin multipoint connectors of the control in the motor cover.

Only connect couplings and pin multipoint connectors of identical colour (orange and grey).

For the assignment, see page 92.

*   With electronic hoist limit switch: Insert the connector on the hoist limit switch PCB.

 

 

Closing the chain hoist

Long fillister-head screws

Short fillister-head screw

Bayonet coupling

Motor cover

*   Hold the motor cover on the housing.

*   Note the different screw lengths and screw in the fillister-head screws.

 

Size

Size and length

Number

Tightening torque

GM2

M5x65

3x

4 Nm

GM2

M5x45

1x

4 Nm

GM4

M5x60

3x

4 Nm

GM4

M5x50

1x

4 Nm

GM6

M8x110

3x

15 Nm

GM6

M8x60

1x

15 Nm

GM8

M10x95

3x

20 Nm

GM8

M10x50

1x

20 Nm

*   Insert the bayonet coupling of the connection cable and the bayonet connector of the control cable. Due to a notch, the plug-in connections will only fit together in one position.

*   Slide on and tighten the bayonet nuts.

 

 

Only for GM2, GM4 and GM6 (GM6 with plastic chain box)

The illustrations show a chain box being installed on the GM6 chain hoist. Installation on a GM2 or GM4 chain hoist is very similar.

 

Installing the chain box

Bolt

SL safety clip

 

Chain box

*   Place the chain in the chain box.

*   Turn the chain box as shown in the figure (slanted side facing outward).

*   Use the bolts to install the chain box on the chain hoist.

─     For GM2: Use a bolt to fix the chain box to the chain hoist.

─     For GM4 and chain box with one hole: Use a bolt to fix the chain box to the chain hoist.

─     For GM4 and chain box with two holes: Use a bolt to fix the chain box to the chain hoist. Use the inner holes of the chain box. The outer holes remain free.

─     For GM6 and plastic chain box: Use two bolts to fix the chain box to the chain hoist.

*  Secure the bolts with the SL safety clips (1x or 2x).

 

 

Only for GM8

 

Attach buffer

 

Suspension straps

Buffer

Bolt

*   Turn the buffer as shown in the figure (rounded side facing inward).

*   Push the buffer between the suspension straps on the chain hoist.

*   Push the short bolt through the outer holes of the suspension straps and the buffer.

 

 

Only for GM6 (GM6 with chain box with metal frame) and GM8

The illustrations show a chain box being installed on the GM8 chain hoist. Installation on a GM6 chain hoist is very similar.

 

Installing the chain box

Inner hole

Bolt

Chain box

SL safety clip

*   Place the chain in the chain box.

*   Turn the chain box as shown in the figure (bar facing outward).

*   Use the bolts to install the chain box on the chain hoist.

─     For GM6 and chain box with metal frame: Use a bolt to fix the chain box to the chain hoist. Use the inner holes of the suspension strap. The outer holes of the suspension strap remain free.

─     For GM8: Use a bolt to fix the chain box to the chain hoist. Use the inner holes of the suspension strap. The buffer is fixed to the outer holes of the suspension straps.

*  Secure the bolts with the SL safety clips (2x).

 

 

Only with an electronic hoist limit switch

 

Referencing the electronic hoist limit switch

*   The electronic hoist limit switch needs to be referenced again. See page 57.

*   Check the switching points (upper and lower) and correct if necessary.

─     The saved switching points are retained after referencing and therefore do not need to be reset.

─     If the switching points are moved equally, all the switching points can be corrected at the same time by changing the reference point accordingly.