Inspecting Timing Belts - ABB CRB 1300 Product Manual

4.4.4 Inspecting timing belts

Location of timing belts
The timing belts are located as shown in the figures.
Required tools and equipment
Equipment
Standard toolkit
Other tools and procedures may be required
if the spare part needs to be replaced. These
are specified in the replacement procedure.
Timing belt tension
The table describes the timing belt tension.
Axis
Axis 3
Axis 4
Axis 5
Axis 6
i
Inspecting timing belts
Use this procedure to inspect timing belts.
1
2
3
4
5
Product manual - CRB 1300
3HAC083111-001 Revision: B
Force
i
Used timing belt
30.2-34.5 N
16.7-19.1 N
9.68-11.1 N
8.79-10.0 N
Used belt is the one having been installed and used for more than 12 hours.
Compared with the new timing belt, the force value decreases 15% and the frequency value
decreases 28% when the timing belt has been installed and used for more than 12 hours but less
than 150 hours. When the timing belt has been installed and used for more than 150 hours, both
the force and frequency values decrease 30%.
Action
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot
working area.
Gain access to each timing belt by removing
the cover.
Check the timing belts for damage or wear.
Check the timing belt pulleys for damage.
If any damage or wear is detected, the part
must be replaced!
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Note
The content is defined in the section
ard toolkit on page
Frequency
New timing belt Used timing belt
43.1-47.4 N 73.4-78.5 Hz
23.9-26.2 N 175-187 Hz
13.8-15.2 N 59.3-63.4 Hz
12.6-13.8 N 85.7-91.6 Hz
Information
4 Maintenance
4.4.4 Inspecting timing belts
Stand-
716.
i
New timing belt
87.8-92.1 Hz
209-219 Hz
70.8-74.3 Hz
102-107 Hz
Continues on next page
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