CM602all_EJM8AESM_Service Manual - 第542页

Disassemble the ball screw unit. Allen key 2.5 mm Screw M3x8L 6 pcs. Tools and Specifications Tools and Specifications Remarks Allen key 2.5 mm Screw M3x12L 4 pcs. Remove the ball screws. 6 Item 5 Remove a set of three Z…

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Refer to "Replacing a Set of Head Units."
Refer to "Head Unit Replacement."
Remarks
Tools and Specifications
Section 5-4-2
Allen key 2.5 mm
Screw M3x8L 4 pcs.
Section 5-5-1
Tools and Specifications
Machinery Part Replacement
Z Unit (3-nozzle type)
Allen key 3 mm
Allen key 4 mm
Screw M4x8L 1 pc.
M5x12L 3 pcs.
Item
Tools and Specifications
Disconnect the connectors.
1
2
Remove the set of head units.
3
4
Remove the upper board bracket.
Tools and Specifications
Remove a head unit.
EJM8A-E-SMA050509-A01-00
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Disassemble the ball screw unit.
Allen key 2.5 mm
Screw M3x8L 6 pcs.
Tools and Specifications
Tools and Specifications
Remarks
Allen key 2.5 mm
Screw M3x12L 4 pcs.
Remove the ball screws.
6
Item
5
Remove a set of three Z-motors.
Machinery Part Replacement
Z Unit (3-nozzle type)
Tools and Specifications
Allen key 2.5 mm
Screw M3x16L 6 pcs.
M3x30L 4 pcs.
8
Disassemble the Z-axis holding plate.
7
Allen key 1.5 mm
Allen key 2 mm
Wrench 13 mm
Setscrew M3 3 pcs.
M4 3 pcs.
Tools and Specifications
EJM8A-E-SMA050509-A01-00
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angular bearing.
12
Tools and Specifications
Allen key 2.5 mm
Screw M3x16L 6 pcs.
Specifications:
T: 250cN・m or less
Lock the ball screws, checking the rotation torque.
11
Install the ball screw unit.
Tools and Specifications
Allen key 2.5 mm
Screw M3x16L 6 pcs.
M3x30L 4 pcs.
E=A-B-C-D+0.015
Place a pair of bearings so
that their serial numbers
face each other.
(Ex. A pair of 47 and 47A)
10
Assemble the ball screw unit.
Take care with the orientation of the
Tools and Specifications
grease applying section.
Allen key 1.5 mm
Allen key 2 mm
Wrench 13 mm
Setscrew M3 3 pcs.
M4 3 pcs.
9
Fit the bearing into the Z-axis plate.
Machinery Part Replacement
Z Unit (3-nozzle type)
Item Remarks
Tools and Specifications
Adjust the pressure applied to the
ABC DE
Bearing joint
Shim
Don't lose the brass bushing.
Moving up and down the linear
guides, find a point at which the
guides slide smoothly. Then
lightly tighten the six screws at
right.
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