KE-750_MS.pdf - 第38页

9. Coupling Z Replacement Since Z-axis motor must be removed to replace coup ling Z, afterwards, Z-axis home positioning must be adjusted and Z-axis height and laser related MS paramet ers must be reentered. (Refer to se…

7. Head Up Spring Replacement

Remove head up spring (4) from spring stud (3) and replace. (Dia. 2 - 1 - 1~3)

8. Coupling θ Replacement

(1) Loosen the 2 screws (1), (2) in coupling θ and remove coupling.

(2) To mount, insert coupling all the way onto Z slider shaft and secure with screw (1). Tighten screw

(2) to fix spline shaft so that the dimensions given below are achieved.

Spline shaft

Screw (2)

Screw (1)

M2.5

Z slider shaft

Fig. 2-8-1

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9. Coupling Z Replacement

Since Z-axis motor must be removed to replace coupling Z, afterwards, Z-axis home positioning must be

adjusted and Z-axis height and laser related MS parameters must be reentered. (Refer to section 2 - 13

for reentry.)

(1) Remove motor as directed in section 2 - 3.

(2) Loosen screw (1) and remove coupling.

(3) To mount, place coupling all the way onto ball screw and tighten screw.

(4) Mount motor as directed in section 2 - 3.

Ball scre

Scre

M2.5

Fig. 2-9-1

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10. IC Head Encoder Replacement

Since the θ positioning upon home return is automatically the -axis home, no adjustment is necessary.

Reentry of MS parameters is also not required.

(1) Disconnect encoder wire bundle from head motor PCB.

(2) Loosen screw (2), remove the 2 SEMS caps (1) and remove encoder.

(3) When mounting, align encoder axis with spline housing IC axis and fasten SEMS caps (1). (Refer

to QA Table, Head, Encoder alignment.)

(4) Line up spline housing IC screw and tighten.

Spline housing IC

SEMS cap scre

Stop scre

Encode

Fig. 2-10-1

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