KE-750_MS.pdf - 第31页

3. Z-axis Motor Replacement After replacing Z-axis motor, Z-axis home positi oning must be adjusted and height and laser related MS data must be reentered. (Refer to section 2 - 13 for reentry.) Head bracket Head motor P…

(4) Reassemble in reverse sequence. Be sure to check the following points.

– Z slider shaft Z direction

(Refer to QA list Head, Z slider shaft Z direction.)

– Z slider shaft XY direction

(Refer to QA list Head, Z slider shaft XY direction.)

– External layout of diffuser & nozzle

(Refer to QA Table, Head, Diffuser fastening position.)

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3. Z-axis Motor Replacement

After replacing Z-axis motor, Z-axis home positioning must be adjusted and height and laser related MS

data must be reentered. (Refer to section 2 - 13 for reentry.)

Head bracket

Head motor PCB

Z-axis moto

SEMS cap

screw

(1)

Ball scre

Fig. 2-3-1

(1) Disconnect Z-axis wire bundle from head motor PCB. Loosen screw (1), remove the 4 SEMS caps

(2) and remove Z-axis motor.

(2) When mounting, align Z-axis motor shaft axis with ball screw axis. (Refer to QA Table, Head, Z

motor axis alignment.)

(3) After replacement, adjust Z-axis home positioning and tighten coupling screw (1). (Refer to QA

Table, Head, Z-axis home adjustment.)

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4. -axis Motor Replacement

After replacing θ-axis motor, adjustment of timing belt θ tension is required. Since the θ positioning upon

home return is automatically the θ-axis home, no adjustment is necessary. Reentry of MS parameters is

also not required.

(1) Disconnect θ-axis motor wire bundle from head motor PCB.

(2) Loosen hex nut (1), the 4 SEMS cap screws (2) and hex head bolt (3) to loosen timing belt

tension.

(3) Remove the 4 SEMS cap screws (5) holding θ-axis motor and remove θ-axis motor. (Fig. 2-4-1).

(4) Loosen the 2 stop screws (6) holding motor pulley and remove from θ-axis motor. (Fig. 2 4-2).

θ-axis motor

SEMS cap scre

washe

SEMS cap scre

Timing belt θ

Sheeter motor pulle

Hex bolt

Hex nut

Fig. 2-4-1

Stop scre

(SM8030602TP)

θ -axis motor

θ motor pulley

Fig. 2-4-2

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