Adjusting The Timing Belt Tension (B10/B14/B14H) - Yamaha FLIP-X Series Maintenance Manual

2.
The B10, B14 and B14H series robots use a timing belt to move the table slider.
If the tension of the timing belt is weak, follow the steps below to adjust the belt tension.
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WARNING
• BEFORE STARTING THE WORK, BE SURE TO DISCONNECT THE ROBOT FROM THE CONTROLLER OR TURN OFF THE
CONTROLLER POWER. IF THE ROBOT OPERATES DURING WORK, THIS MAY CAUSE SERIOUS ACCIDENT.
• THE ADjUSTMENT WORK WITH THE COvER REMOvED MUST BE PERFORMED ONLY BY PERSONS WHO HAvE THE
REQUIRED QUALIFICATIONS DESCRIBED IN "2. QUALIFICATION OF OPERATORS/WORKERS" IN SECTION 4.1 OF
"SAFETY INSTRUCTIONS".
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• BE CAREFUL NOT TO NEGLECT TIGHTENING SCREWS OR BOLTS. IF ANY COvER IS NOT SECURED FIRMLY, THIS MAY
CAUSE NOISE, COvER DROPPING AND FLYING, HAND ENTANGLEMENT IN DRIvE UNIT DURING TEACHING, OR BURN
DUE TO HAND IN CONTACT WITH HOT SURFACE. SO, BE SURE TO TIGHTEN ALL THE SCREWS AND BOLTS SECURELY.
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WARNING
THE MOTOR AND SPEED REDUCTION GEAR CASING ARE ExTREMELY HOT AFTER AUTOMATIC OPERATION, SO BURNS
MAY OCCUR IF THESE ARE TOUCHED. BEFORE TOUCHING THESE PARTS, TURN OFF THE CONTROLLER, WAIT FOR A
WHILE AND CHECK THAT THE PARTS HAvE COOLED.
INjURY CAN OCCUR IF HANDS OR FINGERS ARE SQUEEzED BETWEEN THE DRIvE PULLEY AND BELT. ALWAYS TURN OFF
THE CONTROLLER AND USE CAUTION WHEN HANDLING THESE PARTS.
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CAUTION
• Since a positional shift occurs after adjusting the belt tension, return-to-origin or absolute reset must be
performed again and the point data must be re-specified.
• Be sure to wear safety gloves before starting the work. If you touch any steel material part with bare hands, this
may cause rust.
• Be careful not to drop any screw or bolt during cover removal work.
Prepare tools necessary for the adjustment work
• Belt tension adjustment bolt (accessory)
• Push-pull scale
• Stay (The user must manufacture this stay while referring to the Fig. below.)
• Tension meter
3-2

Adjusting the timing belt tension (B10/B14/B14H)

Stay (example)
Push-pull scale
Nut
Belt
Nut
Hole
Stay
Metal plate of 3.2mm thick
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53303-AC-00