JRC JMR-92 Series Field Service Manual page 296

4.1.2.3 Encoder (CHT-71A) Replacement/NKE-1139
[Required Tools]
The tools shown in the following table are required for replacement work.
No Name
1 Phillips screwdriver
2 Open-end wrench*1
3 Socket wrench*1
*1 Either the wrench (adjustable wrench) or socket wrench is mandatory. (mounting/removing
the cover, etc.)
Before beginning work, turn Off the safety switch of the Scanner unit.
Before conducting replacement work, turn Off the circuit breaker for the power supply of the
display unit.
Exercise care not to lose bolts, screws and other parts removed from the Scanner unit, as they
will be used again in later steps.
Chapter 4 Replacement procedure
Table Required Tools
Size
Size #2, Size #3
Width across flats
7 mm (for M4 screws),
8 mm (for M6 screws),
13 mm (for M8 screws)
Width across flats
7 mm (for M4 screws),
8 mm (for M6 screws),
13 mm (for M8 screws)
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