GBA
Global Bill Acceptors
GBA ST1 Operation Manual
Page 29 of 37
Astrosys International Ltd
September 2011
ST1 Operations Manual Rev 2.0
9.3 Replacing Drive Belts
1.
Ensure the power supply to the GBA ST1 unit is switched OFF.
2.
Remove the GBA ST1 unit from the Faceplate.
3.
Remove the Cassette by sliding the cassette clip forwards (away from the cassette) and
lifting the cassette away from the GBA ST1 unit.
4.
Disconnect all external cables attached to the Bottom Sensor Assembly through the side
walls of the Channel.
5.
Pinch together the central tabs of the bottom plate clip, and gently slide the Bottom Sensor
Assembly away from the Channel.
6.
Release the 18-way cable assembly from its strain relief in the Channel.
7.
Undo 2x screws retaining upper end of drive belt assembly (accessed from rear of unit) and
1x screw retaining lower end of drive belt assembly (accessed from front of unit).
8.
Without fully removing it, slide the drive belt assembly gently outwards from the Channel
until the two cable assemblies within the product are visible.
9.
Gently disconnect the two cable assemblies from the drive belt assembly and remove the
drive belt assembly fully from the unit.
10.
Unscrew 2x screws retaining one (lower) belt cover to access the first lower belt. Repeat
for alternate side if required.
11.
Remove lower belt(s). NB; take care not to lose Idler Pulley(s), Idler Pulley Shaft(s) or
Tension Roller Assembly(s).
12.
Remove upper bracket (provides access to both upper belts). NB; when refitting, please
ensure that the upper bracket is positioned so that the ASY number is upside down to
avoid trapping the upper belts.
13.
Remove upper belt. NB depress idler roller shaft to avoid losing springs
14.
To refit the drive belts please reverse the process 12 to 1 above.
