Epson LQ-2550 Technical Manual page 165

The tools, measuring instruments, and lubricants listed in Tables 4-1 through 4-3 are recommended
for use when disassembling and repairing the printer.
Phillips screwdriver #2
Phillips screwdriver #1
Box driver (7 mm across)
Round nose pliers
Diagonal cutting nipper
Tweezers
E-ring holder #2
E-ring holder #3
E-ring holder #5
E-ring holder #6
E-ring holder #8
Brush #1
Brush #2
Cleaning brush
Hexagonal wrench (3 mm across)
Tension gauge (7000 g) #E668
Thickness gauge (1.2 mm) #E667
Adjustment Cartridge #E658
Dial gauge #E 672
Dial gauge base #E 671
Extension cable #E 649
Availability
O: Commercially available tool
Classification
Oil
Grease
Grease
Adhesive
After disassembly, assembly, and adjustment, be sure to perform lubrication, adhesive application,
cleaning, and inspection, as indicated in Chapter 6, to maintain optimal printer performance.
Table 4-1. Repair Tools
Designation
Table 4-2. Measuring Instruments
Designation
Oscilloscope
Multi meter
Table 4-3. Lubricants and Adhesive
Designation
o-2
G-2
G-27
Neji lock #2 (G)
Part No.
B 7 4 3 8 0 0 2 0 0
B743800 100
B740400 100
B64 1000100
B777200301
B77670150 1
Y 4 9 9 0 3 5 0 2 0
B7651 11401
B7651 11801
B765 109801
Class
A: Mandatory
B: Recommended
Specification
20 MHz or more
A: Mandatory
B: Recommended
Capacity
40 cc
40 g
40 g
1000 g
4-3
Availability Class
o
0
0
0
0
0
o
o
o
o
0
0
0
0
Class
B
A
Availability
B7 10200001
B70020001 1
B 7 0 2 7 0 0 0 0 1
B 7 3 0 2 0 0 2 0 0
REV.-A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
A
A
A
A
A
A
A
Part No.