Introduction; Equipment And Tools Required - A&D GX-A Series Maintenance Manual

For smooth maintenance, the products must be technically understood, and the required
equipment and tools must be prepared. Since the GX-A/GF-A series electronic balance is a
precision instrument, proper operation cannot be guaranteed if the maintenance is performed
under unsatisfactory conditions.

1.1 Equipment and Tools Required

Description
(1) A Phillips screwdriver 3 mm
(2) A Torx wrench (T20H)
(3) An adhesive tape 8 mm
(4) An Allen wrench 4 mm
(5) Round-nose chain pliers
A nipper
(6) A square
(7) A soldering iron (25-40 W)
(8) Masses
Model
123 (Only GF-A)
203
303
403
603
1003
1603
Model
1202 (Only GF-A)
2002
3002
4002
6002/6001
10002/10001
(9) Multi-meter (Voltage measurement with 1mV resolution, Resistance measurement for
insulation resistance of 20MΩ or more.)
(10) Oscilloscope
(11) AC adapter (Use the AC adapter supplied with the balance)
(12) The balance instruction manual
GX-A/GF-A Maintenance manual

1. Introduction

(T25H)
Cylinder type Masses
100gx1, 200gx1
200gx1, 300gx1
200gx1, 400gx1
300gx1, 600gx1
500gx1,1000gx1
500gx1, 600gx1
Cylinder type Masses
500gx2,1kg x1
4kg x1, 10kg x1
Purpose
For disassembling and reassembling
For disassembling and reassembling
For corner load adjustment
For cleaning the force motor unit
For securing the magnet support
For disassembling guide of the lever
For the tension flexure adjustment
For soldering wires on force motor
100gx1
1kg x1, 2kg x1
2kg x1, 3kg x1
2kg x1, 4kg x1
3kg x1, 6kg x1
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Slotted type Masses
50gx2
100gx2
100gx3, 200gx1
100gx4, 200gx2
200gx3, 300gx2
200gx5, 400gx1, 600gx1
400gx4, 600gx2
Slotted type Masses
500gx2
1kg x2
1kg x3, 2kg x1
1kg x4, 2kg x1
2kg x3
2kg x5, 3kg x2, 4kg x1