Isuzu KB P190. Manual — part 1130

UNIT REPAIR (JR405E) 7A4-43

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• Remove the bearing race from the rear internal gear.

7A4-44 UNIT REPAIR (JR405E)

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11.Snap ring

Remove the low clutch snap ring.

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12.Retaining plate, drive plates, driven plates, and dish

plate

Remove the low clutch retaining plate, the 7 drive plates,

the 7 driven plates, and the dish plate.

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13.Snap ring

• Install the spring compressor to the low clutch drum.

Spring compressor: 5-8840-2759-0

• Carefully press the cancel cover down.

Take care not to damage the return spring.

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• Remove the snap ring.

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14.Cancel cover

Remove the cancel cover.

UNIT REPAIR (JR405E) 7A4-45

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15.Return spring

Remove the return spring.

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16.Low clutch piston

• Insert the low one-way clutch inner race to the low clutch

drum.

• Force compressed air through the oil passages of the

low one-way clutch inner race to remove the low clutch

piston.

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17.Snap ring

• Raise the low one-way clutch side.
• Remove the low one-way clutch snap ring.

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18.Side plate

Remove the side plate.

7A4-46 UNIT REPAIR (JR405E)

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19.Low one-way clutch

Remove the low one-way clutch.

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20.Snap ring

Remove the snap ring from the low clutch drum.

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21.Bearing

Remove the bearing.

Inspection

Drive plates

• Measure the drive plate facing thickness at 3 points.
• Calculate the average value.

If the average value is less than the specified limit, the

drive plate must be replaced.

Drive plate facing thickness:

Standard – 2.0 mm (0.079 in)

Limit – 1.8 mm (0.071 in)

Return springs

• Check the number of effective return spring coils.

If the number is less than the specified minimum, the

return spring must be replaced.

Effective return spring coils (standard): 9.9

• Measure the return spring outside diameter, free length,

and linear diameter.

If any of the measured values exceed the specified limit,

the return spring must be replaced.

Return spring measurements (standard):

Outside diameter – 9.7 mm (0.382 in)