Furuno 1834C-BB User Manual

8. MAINTENANCE, TROUBLESHOOTING

8-3

8.4 Replacing

the

Magnetron

When the magnetron has expired, distant targets cannot be seen on the display. When you
feel that long range performance has decreased, contact a FURUNO agent or dealer about
replacement of the magnetron.

Radar model and magnetron used

Model Magnetron

Type

Code

No.

MODEL 1824C-BB

E3588

000-146-866

E3571 000-146-867
MG4004 000-158-895

MODEL 1834C-BB
MODEL 1934C-BB

MAF1421B 000-158-786-10

000-146-871

MAF1422B

000-158-788-10

MODEL 1944C-BB

MG4006 000-158-896

MODEL 1954C-BB

MAF1425B

000-158-790-10

MODEL 1964C-BB

M1458F

000-158-780-10

8.5 Replacing the Synchro Belt (1824C-BB only)

When the synchro belt of MODEL1824C-BB has worn out, the sweep is not synchronized
with antenna rotation, which results in an abnormal picture.

When you suspect that the synchro belt has worn out, contact a FURUNO agent or dealer
about replacement. (Type: 40 S2M 266UG, Code No.: 000-808-743)

8.6 Trackball

Maintenance

If the cursor skips or moves abnormally, you may need to clean the Trackball.

1.  Turn the retainer ring counterclockwise 45° to unlock it.
2.  Remove the retainer ring

and ball.

3. Clean the ball with a soft

lint-free cloth, and then
blow carefully into the
ball-cage to dislodge
dust and lint.

4. Look for a build-up of dirt on the metal rollers. If dirty, clean the rollers using a cotton

swab moistened lightly with isopropyl-rubbing alcohol.

5. Make sure that fluff from the swab is not left on the rollers.
6. Replace the ball and retainer ring. Be sure the retainer ring is not inserted reversely.

Note: Trackball maintenance parts are available as below.

Part Type

Code

No.

Retainer ring and ball

MU3721

000-144-645

Retainer Ring

PUSH TO ENTER

DEF

MNO

VWX

_'#

POWER

RANGE

JKL

STU

ABC

GAIN

ALARM

EBL

VRM

PQR

YZ&

DISP

CLEAR

GHI

SAVE

MOB

HIDE

SHOW