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4 Repair
4.5.2. Replacement of brake release unit
271
3HAC022033-001 Revision: E
©
Co
py
rig
h
t 200
4 - 20
08 ABB.
All r
ig
h
ts r
e
se
rv
ed
.
Location of brake release unit, frame
The later design includes a brake release unit with push buttons, placed together with the
SMB unit on the left hand side of the frame as shown in the figure below.
xx0200000226
Required equipment
A
Brake release unit
B
Attachment screws, brake release unit (4 pcs)
C
Buttons
D
SMB cover
E
Push button guard
Equipment, etc.
Spare part no.
Note
Brake release circuit
without buttons, at base
3HAC14219-1
Brake release at the base, according to
figure
Location of brake release unit, base
Includes brake release unit 3HAC14228-1.
Brake release circuit with
buttons, at base
3HAC12989-1
Brake release at the base, according to
figure
Location of brake release unit, base
Includes brake release unit 3HAC16036-1.
Brake release unit with
buttons, at frame
3HAC16036-1
Brake release unit at the frame, according
to figure
Location of brake release unit,
.
Push button guard
3HAC2744-1
Standard toolkit
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The content is defined in section
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