JMA-5300MkIIsm

INDEX > 4.Replacement Procedure > 4.4 Scanner Unit NKE-2103 (JMA-5312-6/6HS)
4.4.8 Encoder replacement (CHT-71A)
[Required tools]
• A Phillips screwdriver for 4 mm screws
• A Phillips screwdriver for 5 mm screws
• Single-ended wrench (width across flats 7 mm
for M4 bolts)
• Tools for removing the cover from the scanner
unit (see Section 4.4.1, page 4-46)
[Replacement procedure]
1) Open the upper cover (see Section 4.4.1, page 4-46) to remove the transmitter-receiver
unit (see Section 4.4.2, page 4-47).
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2) Remove the two screws (M4) holding the
encoder to remove it from the housing.
Loosen the
screw (M4).
Encoder
3) Remove the metal fixture and the gear wheel
attached to the encoder. Put them onto the new
encoder and put the encoder back into the unit.
Remove the
screw (M4).
Remove the
nut.
Metal fitting
4) After replacing the encoder, follow the
disassembly procedure in the reverse order.
Do not forget to tighten the screws and connect
the cables.
Encoder
Remove the
three screws.
[Check points]
1) Turn on the radar power supply. After the countdown is completed, start emission and
check that the radar image appears without error.Open the serviceman menu to perform
bearing adjustment (Refer to Section 7.1.4 of the instruction manual).
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