NoteAction
xx2000001663
Remove the lower arm support.
Tip
If the lower arm support is hard to loosen from
the swing, use a plastic hammer to knock on the
lower arm support lightly.
2
Removing the axis-3 timing belt
NoteAction
DANGER
Make sure that all supplies for electrical power,
hydraulic pressure, and air pressure are turned
off.
1
CAUTION
Loosening timing belts will release axes. This
means the axes can fall down.
Make sure axes are well supported before
loosening timing belts.
2
CAUTION
The upper arms, which includes housing, extender
unit (only for CRB 1300-7/1.4 and ), tubular and
tilt unit weighs 17 kg.
All lifting accessories used must be sized accord-
ingly!
3
Fit a roundsling to the upper arm to support the
weight (no force).
4
xx2000001614
Loosen the screws and move the motor slightly
to slacken the timing belt.
5
Continues on next page
392 Product manual - CRB 1300
3HAC083111-001 Revision: B
© Copyright 2022-2023 ABB. All rights reserved.
5 Repair
5.5.2 Replacing the housing and extender unit
Continued
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