1. Okuma Vac Drive Manual Garage Door Opener
2. Okuma Vac 3 Drive Unit Manual
3. Okuma Vac Drive Manual Transmission

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Okuma’s Certified Exchange Parts program maintains the high-performance characteristics of your Okuma CNC machine with speedy and cost-effective OEM-Certified spare parts. Below is a list of the most commonly exchanged and repaired units.

Ready to begin the process? Don't see your unit here? Contact your local Okuma distributor today.

Electrical Exchange

Okuma Vac Drive Manual Garage Door Opener

Printed Circuit Boards (2200, 3000, 5000, 5020, 7000, U100, E100, P100 Controls)

• 2200 and 3000 – Slot and IF boards
• 5000 and 5020 – Main boards and cards, SVP, and ECP boards
• 7000 – Main boards, SVP, TFP boards
• U100 and E100 – FWMB, TFP, and FCP Boards
• P100 – PCMB, SVDN, and CPCI boards

Spindle Drive Units (5020 and 7000 Controls)

• VAC1 D8A, D11A, D22A
• VAC-2 D8A, D11A, D22A
• VAC-3 D6, D11, D22
• VAC-4 and VAC-5’s

Axis Drive Units (5020 and 7000 Controls) BL-D 50A, 75A, 100A

• BLII-D50A, 75A, 100A
• BLII-D 50/50A, 50/75A, 75/75A
• BL3-D and BL4-D’s

Axis and Spindle Drives, Power Supplies (U100, E100, P100 Controls)

• MIV & MIV-A Inverter Units
• MIV0101A, MIV0404A
• MIV0103, MIV0202, MIV0202, MIV0204
• MIV22, MIV30, MIV45
• MPS, and MPR Power Supply Units
• MPS-20, 30, 45, 60
• MPS-10B, 20B, 30B, 60B
• MPR-5, 10
• MIP Inverter/Power Supply Combo
• MIP11 , MIP22

Axis/Spindle Drive Units, Power Supplies (P200, P200A, P300 Controls)

• MDUA, MDUB, MDUC, MDUD, MDUE, MDUF, MDUH
• MDU0404, MDU04
• PSU20, PSU30, PSU45
• PSDUA, PSDUB, PSDUC

Panel PC Units

• P100
• P200
• PNC1, PNC2
• P200A/P300
• PNC3

Mechanical Exchange

Vertical Machining Centers

• CAT, BT, & HSK Tooling types
• All taper sizes with Big Plus option
• Standard and High speeds
• ATC Cam Boxes
• Common Machine Types/ Sizes
• MB-46V, MB-56V, MB-66V, M460, M560
• MX-45V, MX-55V
• MA-550V, MA-650V
• MC-V4020/3016, ES-V4020/3016
• Crown-V, Cadet Mate
• MU 5000, MU8000, MU10000, MU6300
• All Millac

Horizontal Machining Centers

• CAT, BT, & HSK Tooling types
• All taper sizes with Big Plus option
• Standard, High speeds & High torque
• Common Machine Types/ Sizes
• MA-400H, MA-500H, MA-600H
• MB-4000H, MB-5000H, MB-8000H
• MA/X-40H, -50H, -60H
• Millac Series

5-Axis Lathes

• Milling Spindle (H1 Indexing Turret)
• Capto, CAT, & HSK tooling types
• 40 & 50 Taper
• Standard and High speeds
• Common Machine Types/ Sizes
• Macturn 30/50
• Macturn 250, 350, 550
• Multus B300, B400, B750
• VTM-65, 100, 200, 1200, 2000
• Millac VH series

Grinder Spindles

• Wheel Spindles
• ID and OD Spindles
• All Speeds and Tooling
• Common Machine Types/Sizes
• GA/GP-F (I&II)
• GA/GP-T
• GI Series

Double Column Attachment Heads

• Straight, 90 Degree, and B/C types
• Varying Lengths and Speed
• Common Machine Types/ Sizes
• MCM, MCM-B
• MCR-A, B, BII, BIII
• MCV-A, MCV-AII

ATC Cambox

• 40 & 50 Tapers
• Standard , Multi-magazine, Matrix
• Common Machine Types/ Sizes
• MA/MX 40, 50, 60
• MX45, 55 MCV3016, MCV4020
• MA560/650
• MA400
• MB46/56, M460, M560
• MA500/600/800
• MB4000/5000

B axis

• .001° & NC
• Common Machine Types/ Sizes
• Multus B750
• Multus U3000, U4000
• MB5000, MB8000
• Macturn 250

Motors & Stators

• Integral & belt drive
• Common Machine Types
• MX-45V, MX-55V
• MX45, 55 MCV3016, MCV4020
• MA/MX 40, 50, 60
• MA500/600/800
• Macturn 250/350
• Millac Series
• Lathe: LAW, LB300,LAWV24,L370

Ready to begin the process? Don't see your unit here? Contact your local Okuma distributor today.

Precision Zone Specializes in Repairs for Okuma VAC-III AC Spindle Drives

The VAC-III is one of Okuma’s most popular conventional spindle drive units. With 3 powerful models, the VAC-III comes in a 6kW, 11kW and 22kW capacity. The VAC-III boasts quick, clean control signal communication through its fiber optic connection to the NC. This fiber optic connection allows for faster transmission of data and immunity from electromagnetic interference on the signals. Standard copper cables are used for encoder, resolver and winding select connections. Easy access fuse holders on the edge of the power board allow for the ability to quickly check for and replace blown fuses. With distinct, bright LEDs on the control board, the VAC-III provides easy to read LED indication for alarms and operation status.

A pair of large seven segment LEDs gives the user clear alarm and operation status read out in conjunction with the standard LED indicators. This alarm data is also transferred to the NC which displays the alarm name and alarm data on the main screen.

When assessing the functionality of an Okuma Spindle Drive, our repair team conducts a four-step evaluation:

1. Visual Overview

2. Static Test

Okuma Vac 3 Drive Unit Manual

3. Checks Under Power

4. Alarm Codes Verification

This overview is Precision Zone’s basic troubleshooting process. Once our repair team starts on the job, we use specialized and customized testing fixtures, Huntron trackers, signal generators, oscilloscopes, milli and mega ohm meters, as well as any other necessary tools we have available to assure quality repair work. Most importantly, every repair is fully tested in our custom-built simulators under load with a motor to replicate real-life working environment. Precision Zone goes as far as using heating chambers and overnight dynamic testing, when applicable, to guarantee performance of the repaired product when it arrives back with the customer. Font khmer unicode for mac 7.

Precision Zone goes as far as using heating chambers and overnight dynamic testing, when applicable, to guarantee performance of the repaired product when it arrives back with the customer.

Repair Process for Okuma VAC-III Spindles

Okuma Vac Drive Manual Transmission

Visual Overview

When conducting a visual check, the technician inspects the drive for any mechanical damage to the drive itself and any printed circuit boards. The technician then proceeds to verify connections are tight and correct inside the drive and there are no loose screws, wires or debris. Additionally, the unit is checked for any burn marks on the components, printed circuit boards or chassis. During the visual inspection, excessive dirt on cooling components is noted as well as the functionality of the heat sink.

Basic Static Check

Output Module Testing

Precision Zone repair technicians use digital multimeters with diode testing capabilities and also take resistance measurements to conduct a static test. For these units in particular, our team of technicians uses the diode function of the multimeter as well as huntron devices to check the output modules.

Precision Zone's number one goal is to get you and your business back up and running as soon as possible. To acheive this goal, not only do we offer repair services for your machines, but we also offer free technical support. For more information on these alarms on the Okuma VAC-III Spindle Drive Series and all other machine related issues, please contact us for additional assistance via phone at 800-551-4420 or email at repair@precisionzone.com

Discover the Precision Zone Advantage + Repair Benefits to repairing your Okuma VAC-III AC Spindle Drive with Precision Zone

• Free Quotes and Evaluation by expert technicians
• We have a thorough evaluation process that utilizes visual, static, and power tests to determine the failure of the product so you get a comprehensive and accurate quote. Everytime.

• 1-Year Warranty
• All products are covered by our comprehensive warranty. Warranty terms and conditions are product specific.

• Competitive Pricing
• We know that you have many different options to go to for your repairs. However, we pride ourselves in being able to provide you with a more affordable and competitive repair option with out sacrificing the quality of service we provide.

• Flexible Rush Repair
• To minimize your equipment downtime, we offer mutliple rush repair options. Standard repair time is typically 1-2 weeks. Rush repair options include 3 day, 2 day, next day, and even same day repairs.

Contact Us To Start Your Repair Today!

VAC-III D6 is an
Drives-AC Spindle manufactured by Okuma
Discovered issues: Bad Capacitor(s), Bad Gate Section/Board, Bad Output Transistors/SCRs
Drive Type: VAC-III AC Spindle Drive
Rated Capacity: 6kW

VAC-III D22 is an
Drives-AC Spindle manufactured by Okuma
Discovered issues: Passed Testing - Highly Recommend Recondition
Drive Type: VAC-III AC Spindle Drive
Rated Capacity: 22kW

VAC-III D11 is an
Drives-AC Spindle manufactured by Okuma
Discovered issues: Bad Output Transistors/SCRs
Drive Type: VAC-III AC Spindle Drive
Rated Capacity: 11kW