Brother GTX-4 - 8-5. Print Operation Settings Under Low Temperature; 8-6. Screen Back Light Adjustment

6-36
Disassembly / Replacement / Adjustment
6-1-13. Carriage belt tension adjustment
Prepare a sonic belt tension tester [Gates Unitta parts no.:U-507].
Belt tension tester
setting
Unit mass (WEIHT) Width (WIDTH) Span (SPAN) Tension
width (g/mm) x
length (meter)
mm mm N
Carriage belt 1.3 9 921
22～30
Disassembly
(1) Remove the cover with reference to "6-1-12. Replacement of carriage belt".
(2) Measure tension applied to carriage belt and confirm value is as specified.
<TIPS>
 Be sure to measure belt tension after moving carriage several times to allow belt to settle.
(3) Loosen the two hole bolts to adjust the tension applied to the carriage belt using the belt tension adjustment hole
bolt while checking the belt tension tester.
3
Belt tension adjustment hole bolt