Toshiba HCV-5HA Instruction Manual page 21

MAINTENANCE
Location
Gap/Wipe Standard Values (contactor in new condition)
Contactor
Vacuum
Normally
Interrupter
Energized Type
Latched Type
* Check for loose mounting bolts. Tighten if loose.
Bearing
Torque M6 bolts to 48 in-lb.
* Check for discoloration.
Yellow (Gold) ...... available for continued use.
Closing Coil
Dark Brown or Black ...... replace with new coil.
If the closing coil is overheating, contact Toshiba.
* Check that the holding latch reliably engages.
Note: To manually close the latch, hold the central area of the rotating
Latch
Mechanism
* Check the condition of the roller. It should be smooth.
* Lubricate the rotating parts with a molybdenum disulfide
or gear lubricant.
* Verify that there is remaining auxiliary shaft travel.
Approximately 2.3 - 2.5mm.
* Check for burnt or worn contacts.
Replace if burnt or worn.
* Check if auxiliary switch is mounted at an incline or if
mounting plate is loose. If inclined or loose, correct it.
Auxiliary
(Reference) Values for gap and wipe
Switch
Delayed N.C. Contact (For latched
type contactor only. Contacts 16-26)
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Maintenance Procedure
Contact Gap
4.0-4.2mm
4.0-4.2mm
shaft with a wrench and operate it.
Contact Type
Normally Open Contact
Normally Closed Contact
Wipe (new) Allowable Wear
>2.3mm 1.8mm
>2.1mm 1.6mm
Contact Gap Wipe
4mm +/- 0.4 3mm +/- 0.3
4mm +/- 0.4 3mm +/- 0.3
2.5mm +/- 0.3 4.5mm +/- 0.5
Page 19