SIPLACE D4-D4i 工程师手册_EN - 第73页
Service Work 4.2.8 Replacing the X Motor Unit 00333167-xx Gantry Service Manual SIPLACE D4/D4i 73 Installing the X-axis motor unit Replacing the X- axis motor unit Gantry 1 or 3 ► Carefully insert the X motor unit (4) a …
Service Work
Gantry 4.2.8 Replacing the X Motor Unit 00333167-xx
72 Service Manual SIPLACE D4/D4i
► Remove the cable clamp for the flat ribbon cable (11).
► Disconnect all the plugs from the X/Y distributor (5).
► Remove the X/Y distributor (5).
► Remove the board holder for the X/Y distributor (9).
► Remove the cable holders (10) on the trailing cable.
► To relax the toothed belt (3), proceed as follows:
⇨ Loosen the locknut (8),
⇨ Turn the hexagon socket-head screw (2) counterclockwise.
► Loosen the two M6 x14 hexagon socket-head screws (7) fixing the X motor unit (4).
► Pull the X motor unit (4) up and out,
► at the same time pushing the board holder slightly to the side.
Gantry 2 or 4
► Remove the black cover strip on the cross-beam above the gantry concerned:
⇨ Unplug the fan cable. The fan is fixed to the black cover strip.
⇨ Remove the black cover strip (3 M6x8 hexagon socket-head screws).
► Cut the cable ties holding the X-axis motor cable.
► Remove the cable clamp for the flat ribbon cable (11).
► Disconnect all the X motor plugs from the X/Y distributor (5).
► Remove the board holder for the X/Y distributor (9).
► Remove the cable holders (10) on the trailing cable.
► To relax the toothed belt (9), proceed as follows:
⇨ Loosen the locknut
(8),
⇨ Turn the hexagon socket-head screw (2) counterclockwise.
► Loosen the two M6 x14 hexagon socket-head screws (7) fixing the X motor unit (4).
► Pull the X motor unit (4) up and out,
at the same time pushing the board holder slightly to the side.

Service Work
4.2.8 Replacing the X Motor Unit 00333167-xx Gantry
Service Manual SIPLACE D4/D4i 73
Installing the X-axis motor unit
Replacing the X-axis motor unit
Gantry 1 or 3
► Carefully insert the X motor unit (4) as far as the stop,
making sure that you do not damage the toothed belt.
The motor cable points towards the permanent mag-
nets of the linear drive.
► Fix the X motor unit into place with the two hexagon
socket-head screws (7).
► Fit the cable holders for the trailing cable (10).
► Fit the board holder (9).
► Fit the X/Y distributor (5).
► Connect all plugs to their sockets on the X/Y distribu-
tor (5).
► Fix the flat ribbon cable with the cable clamp (11).
► Fix all the cables with cable ties.
CAUTION!
Make sure that the cables are firmly seated. Otherwise,
the high acceleration forces may cause the cable to slip
out of position and shear through.
► Tension the X toothed belt with the hexagon socket-
head screw (2).
► Use the three M6 x 8 hexagon socket-head screws to
fit the black cover strip to the crossbeam above the
gantry concerned.
► Connect the cable of the fan motor to the socket.

Service Work
Gantry 4.2.8 Replacing the X Motor Unit 00333167-xx
74 Service Manual SIPLACE D4/D4i
Settings
See also
4.2.1 Preparations for Service Work [ ➙ 60]
Replacing the X-axis motor unit
Gantry 2 or 4
► Carefully insert the X motor unit (4) as far as the stop,
making sure that you do not damage the toothed belt.
The motor cable points towards the permanent mag-
nets of the linear drive.
► Fix the X motor unit into place with the two hexagon
socket-head screws (7).
► Fit the cable holders for the trailing cable (10).
► Fit the board holder (9).
► Plug the X motor plug into its socket on the X/Y dis-
tributor (5).
► Fix the flat ribbon cable with the cable clamp (11).
► Fix all the cables with cable ties.
CAUTION!
Make sure that the cables are firmly seated. Otherwise,
the high acceleration forces may cause the cable to slip
out of position and shear through.
► Tension the X toothed belt with the hexagon socket-
head screw (2).
► Use the three M6 x 8 hexagon socket-head screws to
fit the black cover strip to the crossbeam above the
gantry concerned.
► Connect the cable of the fan motor to the socket.
Replacing the X-axis motor unit
► Push the head mount (1) towards the X axis motor
unit, as far as the stop on the elastomeric spring.
► Turn the hexagon socket-head screw (2) to set the
belt tension to 53 Hz + 1/-3Hz.
CAUTION!
Do not overstretch the toothed belt when adjusting the
belt tension.
► Secure the hexagon socket-head screw (2) with the
locknut (8).