4 Repair4.6.2. Replacement of brake release unit1453HAC026048-001 Revision: A© Copyright 2006-2008 ABB. All rights reserved.4.6.2. Replacement of brake release unitLocation of brake release unitThe brake release unit is located behind the flange plate at the robot base, as shown below.xx0200000459Required equipmentReplacement, brake release unitThe procedure below details how to replace the brake release unit from the robot base.A Brake release unit with buttonsEquipment, etc. Spare part no. NoteBU w. buttons DSQC 563 3HAC16035-1Standard toolkit - The contents are defined in sectionStandard toolkit on page 190, inpart 2 of the Product manual.Other tools and procedures maybe required. See references tothese procedures in the step-by-step instructions below.These procedures includereferences to the tools required.Action1.-Danger!Turn off all electric power, hydraulic and pneumatic pressure supplies to the robot!2. Remove the cover at the rear of the base.3. Unscrew the six attachment screws of the brake release unit on the outside of the base.4. Disconnect the cable from the brake release unit and remove the unit from the base.5. Reconnect the cable to the new brake release unit and fit it to the base.6. Secure the unit with its six attachment screws on the outside of the base.Continues on next page
